namespace //////////////////////////8= regular j5k/YyjWpJ+nEAURNJqD22JcYh0= eIvg7iueGIPcE8p1NVfngsp2ojw= beman beman/optional/optional.hpp include/beman/optional/optional.hpp 20 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 75 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 94 1 namespace j5k/YyjWpJ+nEAURNJqD22JcYh0= regular //////////////////////////8= a5kXR3ZLcgojav1V+kZ4pHxrrv8= optional beman/optional/optional.hpp include/beman/optional/optional.hpp 20 16 beman/optional/optional.hpp include/beman/optional/optional.hpp 75 16 beman/optional/optional.hpp include/beman/optional/optional.hpp 94 16 namespace a5kXR3ZLcgojav1V+kZ4pHxrrv8= regular j5k/YyjWpJ+nEAURNJqD22JcYh0= 5HzEsKRzStyLkoUmcy9wOt1Mb4o= tC7EcjLfvgsszvp353seh2iQR5Q= mwtFNA7SiRZ2GcsbxvFhVCUxbJs= qm9ez48c7jM2APsMBjONlFHv85U= Pvkqsm2J3WYxmvM1xBy22WjfJxg= Zs/QQI/wnJbLRYvV0XBQmu3hGTg= JD1e2JKrmzHwXwixpQcF00Hfyi0= h7d7FYRcQ1GHFPgVi9Bey+kSfwk= RJcVwVLG7J/h9o/JCZLV3DxqCTg= zqArjaAEi8qVfzlObBlH5MKWrlo= d1BE23ziL5torDYlwcMppvTbJJE= WTsPpLiJO8U0BYvaXj8GHDIyO44= VgbIshRRKmNCyuTfwOcl5MmpwkM= lXqpsN2bfuokQhWN7H2Mr5TEESI= QzXoOOUPIgp2h8E2tTZ0kf1oZ+c= LGxPsHTRkREspc6wFZCA+H1/yPk= XJiUqbGEdK6DROB3Nrm3UwVrXzc= 9xISP7ucNqSnlc7wjTUi6kniZpI= detail beman/optional/optional.hpp include/beman/optional/optional.hpp 22 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 95 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 256 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1484 1 1 namespace 5HzEsKRzStyLkoUmcy9wOt1Mb4o= implementation-defined a5kXR3ZLcgojav1V+kZ4pHxrrv8= paragraph text * brief text END [optional.syn] J5FkhVha3OHaZ9BCAGbBssK4ehk= kZ0y6QLsbgSsCT16Lh3J/3hC3P0= CCKBr7Trw4NFH3nVTXCf/PBYKig= bad_optional_access beman/optional/optional.hpp include/beman/optional/optional.hpp 798 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 138 1 record tC7EcjLfvgsszvp353seh2iQR5Q= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Exception thrown when trying to access the value of an empty optional class identifier pAlZtrYeltB3G25UdChuBKvYgR4= exception identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std QdRJS2LYEGtCR5OVq6ODV0IkPhI= 5zf/jUBz9VTOCR/B2AL4rk9LZ98= peMp+VnFMWLhTr406DNCmfs5tIw= bad_optional_access beman/optional/optional.hpp include/beman/optional/optional.hpp 804 5 1 function QdRJS2LYEGtCR5OVq6ODV0IkPhI= regular tC7EcjLfvgsszvp353seh2iQR5Q= brief text Construct a new bad optional access object identifier void constructor 1 1 1 operator= bits/exception.h 68 5 overloads 5zf/jUBz9VTOCR/B2AL4rk9LZ98= regular tC7EcjLfvgsszvp353seh2iQR5Q= brief text Assignment operators normal 2XS5rENVk//w0+B6JjDmKiHYrzQ= HaeCnX7QGLAQKF8QmC+MWVF/f8A= identifier pAlZtrYeltB3G25UdChuBKvYgR4= exception operator= bits/exception.h 68 5 function 2XS5rENVk//w0+B6JjDmKiHYrzQ= regular 1 tC7EcjLfvgsszvp353seh2iQR5Q= brief text Assignment operator returns text Base class for all library exceptions. param text The object to copy assign from value identifier pAlZtrYeltB3G25UdChuBKvYgR4= exception 1 identifier pAlZtrYeltB3G25UdChuBKvYgR4= exception value normal 1 1 1 operator= bits/exception.h 70 5 function HaeCnX7QGLAQKF8QmC+MWVF/f8A= regular 1 tC7EcjLfvgsszvp353seh2iQR5Q= brief text Assignment operator returns text Base class for all library exceptions. param text The object to move assign from value identifier pAlZtrYeltB3G25UdChuBKvYgR4= exception identifier pAlZtrYeltB3G25UdChuBKvYgR4= exception value normal 1 1 1 what beman/optional/optional.hpp include/beman/optional/optional.hpp 811 5 1 function peMp+VnFMWLhTr406DNCmfs5tIw= regular tC7EcjLfvgsszvp353seh2iQR5Q= brief text Get the error message for bad optional access returns text const char* 1 identifier char normal 1 1 1 in_place_t beman/optional/optional.hpp include/beman/optional/optional.hpp 64 1 1 record mwtFNA7SiRZ2GcsbxvFhVCUxbJs= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Tag type for in-place construction struct QTwHaQRaRJnLs7uXs46XinCKJnc= in_place_t beman/optional/optional.hpp include/beman/optional/optional.hpp 65 5 function QTwHaQRaRJnLs7uXs46XinCKJnc= regular mwtFNA7SiRZ2GcsbxvFhVCUxbJs= brief text Default constructor identifier void constructor 1 1 1 nullopt_t beman/optional/optional.hpp include/beman/optional/optional.hpp 113 1 1 record qm9ez48c7jM2APsMBjONlFHv85U= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Tag type for empty optional construction struct ufNY4Im1hPXv6iQ60Eda4V5/Zh8= h17CgkpzRygtmAYcTitKNi6Hem0= pgYKFK/pI9e+W3RmO0EIWYyr3ww= Op32q7BeWyrksJnEaOtQxHjxWjk= Tag beman/optional/optional.hpp include/beman/optional/optional.hpp 117 5 1 enum ufNY4Im1hPXv6iQ60Eda4V5/Zh8= regular qm9ez48c7jM2APsMBjONlFHv85U= brief text Tag enum for nullopt_t construction 1 identifier int JRw78BAL+lUDtNt6Ic06L50Zg0c= tag beman/optional/optional.hpp include/beman/optional/optional.hpp 117 22 1 enum-constant JRw78BAL+lUDtNt6Ic06L50Zg0c= regular ufNY4Im1hPXv6iQ60Eda4V5/Zh8= brief text the tag value for nullopt_t::Tag nullopt_t beman/optional/optional.hpp include/beman/optional/optional.hpp 124 5 1 function h17CgkpzRygtmAYcTitKNi6Hem0= regular qm9ez48c7jM2APsMBjONlFHv85U= paragraph text constexpr for nullopt_t to be literal. brief text Construct a new nullopt_t object param text The object to construct from value identifier void identifier ufNY4Im1hPXv6iQ60Eda4V5/Zh8= Tag value constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 295 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 76 1 record Pvkqsm2J3WYxmvM1xBy22WjfJxg= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Optional Objects reference make_optional XDbVYkHspG4PB47wpWiRZOo0NlY= reference operator!= 2G159R1+8b1xkOK9u3FF3QDcAUY= reference operator!= 60GHDiC6o64xbYKp83E3A5iPrhE= reference operator< jqNZVersCFRVodB+gdVnvZn9RP4= reference operator< 1H2o8wwBLBtfWFOcBX54+6RBLVU= reference operator<= FWQR8LQnPEO5+/SRa8W4Zc4jDlQ= reference operator<= +NwYIqZvYZCJp+QAWW6cbbSYqVU= reference operator<=> Pmyd8rtgiEpg/HYz7tilkteBFhg= reference operator<=> VgontnHUiNvzkpoRIFv2Vvc88mo= reference operator<=> ndNMB3Ehouv4lF1jzOa2IYgjEh4= reference operator== ATfH0MV8EAQE6oE3e2OWsJsXhbs= reference operator== h5L6UUxvyCnZSKXkcV9/2OpLB10= reference operator== ldpyPTVm1Y7c/9DQKi74IcVueYs= reference operator> hMFh4M52EIPFjJB+10a7s1LJuzw= reference operator> 0xp8ORXBP85+U8pJtrI9nkQUumg= reference operator>= CzwIKHqqfNwhTTh8LWJ/LcPwrTA= reference operator>= 8yrDHvDuwqixD59O2cuFDo+EtbE= reference swap h7d7FYRcQ1GHFPgVi9Bey+kSfwk= class PTkL6Kye5WLULoeW2qEaaj0NXeI= 6P/n8yO8YGsPi3WuM00zv1eh5tY= 9cDFxG5Sry1wrYATso2RP3ExqPM= Joc5jO7PnMz0+sRO5TRRi3uvKTk= FcTw/WouzSfU/4NAHUkpesdJRQE= H0T0OYCRd1fXNcRPJm+IiiMCjYM= L1PpAGlFJ2T91+oABQA1uTPDMfU= mvKIFJ/tGdm9BUEpnNp9FPQJS10= dFKMJ0LSrdW7QkkTxxT8sLDi3QA= FvMngnDbHNGC0b+W82RL9cT/1NQ= 6t3h6GhzPqBBa77+qGG9pIlXDPw= MiwCdTrcx+oeEL4Su3kvyDDY0Kc= lOtdTot8yAZhMy5y9zq2JW5NRoE= HZ70UfvC+3qFRVRBS8yhqFLlBFA= bTJMu3zaBfwK9I2C+ofyz8wR7K8= LzHf/b38WjPqYjOYi4sQzApHUGg= jIPvTT21XtZm3hRmVVg0LlBw4Eo= KJUEdIU+Yl6FtpbIdVa10N5nncU= OsNMNIZ4UWKQoK6y5JtQHOEcLTw= 2PRpxJIgA4IeM03nrPqgz/gWEwM= bhi4SqTfa4/ZxLUXrOV2W7orrjA= bX2YjchFyI55CEfjEgcfj+ScNCU= /qcgW01qPkslPc2T6YxbhqJlyJc= Pvkqsm2J3WYxmvM1xBy22WjfJxg= const_iterator beman/optional/optional.hpp include/beman/optional/optional.hpp 320 5 1 typedef PTkL6Kye5WLULoeW2qEaaj0NXeI= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Since P3168R2: Give std::optional Range Support. brief text Type alias for the const iterator type of the optional. specialization CCKBr7Trw4NFH3nVTXCf/PBYKig= contiguous_iterator identifier 5HzEsKRzStyLkoUmcy9wOt1Mb4o= detail 1 iterator beman/optional/optional.hpp include/beman/optional/optional.hpp 313 5 1 typedef 6P/n8yO8YGsPi3WuM00zv1eh5tY= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Since P3168R2: Give std::optional Range Support. brief text Type alias for the iterator type of the optional. specialization CCKBr7Trw4NFH3nVTXCf/PBYKig= contiguous_iterator identifier 5HzEsKRzStyLkoUmcy9wOt1Mb4o= detail 1 value_type beman/optional/optional.hpp include/beman/optional/optional.hpp 306 5 1 typedef 9cDFxG5Sry1wrYATso2RP3ExqPM= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Type alias for the value type contained in the optional. identifier T 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 346 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 328 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 334 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 340 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 352 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 367 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 377 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 386 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 395 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 402 5 1 overloads Joc5jO7PnMz0+sRO5TRRi3uvKTk= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Constructors param text The arguments to use for in-place construction. args param text The initializer list to use for in-place construction. il constructor Zhjc/C178ql0VoS0WbGc63PBiZs= bKq1AF+Kqr5E1zby//xLZ/vtdz0= zjwlTzPSGuDcl1XH3xBpPP3Iyao= Srnj0nZvtQ0Vg6tuFkyHkrxRq0A= VlioDaayzdTPTqtW3i1MjotUJ0Q= tjPjq+UzTo5gunm94e3lfvW+Z+s= bmNRp4gaMqyt7FQwM2uJmG9eYcY= Qy6ehjKGaqZ4DYsbt/Aqg0LzFzU= CQaBRu9zdyHdATIkvGyP50Saa1A= KnG9lJXbUtQ6Ml1KAXAYNGMcF0c= f0M4hRrue0gdE2D1UxzRPEsJB9Q= identifier void optional beman/optional/optional.hpp include/beman/optional/optional.hpp 815 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 328 5 1 function Zhjc/C178ql0VoS0WbGc63PBiZs= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Default constructs an empty optional. identifier void constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 346 5 1 function bKq1AF+Kqr5E1zby//xLZ/vtdz0= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Defaulted if T is trivially copy constructible. brief text Copy constructs the value from code text rhs text if it has one. param text The object to copy construct from other identifier void 1 identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional other constructor std::is_copy_constructible_v<T> && std::is_trivially_copy_constructible_v<T> 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 821 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 340 5 1 function zjwlTzPSGuDcl1XH3xBpPP3Iyao= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Copy constructs the value from code text rhs text if it has one. param text The object to copy construct from rhs identifier void 1 identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor std::is_copy_constructible_v<T> && (!std::is_trivially_copy_constructible_v<T>) 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 861 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 395 5 1 function Srnj0nZvtQ0Vg6tuFkyHkrxRq0A= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Converting copy constructor. brief text Constructs the value from code text rhs text if it has one. param text The object to copy construct from rhs identifier void 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor (detail::enable_from_other<T, U, const U&>) 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 358 5 1 function VlioDaayzdTPTqtW3i1MjotUJ0Q= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Defaulted if T is trivially move constructible. brief text Move constructs the value from code text rhs text if it has one. param text The object to move construct from other identifier void identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional other constructor std::is_move_constructible_v<T> && std::is_trivially_move_constructible_v<T> 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 830 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 352 5 1 function tjPjq+UzTo5gunm94e3lfvW+Z+s= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Move constructs the value from code text rhs text if it has one. param text The object to move construct from rhs identifier void identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor std::is_move_constructible_v<T> && (!std::is_trivially_move_constructible_v<T>) 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 872 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 402 5 1 function bmNRp4gaMqyt7FQwM2uJmG9eYcY= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Converting move constructor. brief text Constructs the value from code text rhs text if it has one. param text The object to move construct from rhs identifier void specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor (detail::enable_from_other<T, U, U &&>) 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 818 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 334 5 1 function Qy6ehjKGaqZ4DYsbt/Aqg0LzFzU= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Constructs an empty optional. param text The object to construct from value identifier void identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t value constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 854 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 386 5 1 function CQaBRu9zdyHdATIkvGyP50Saa1A= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text If code text u text is convertible to code text T, text this is an explicit constructor. paragraph text Constructs the contained value with code text u text . brief text Constructs the value from code text u, text forwarding it if necessary. param text The object to move construct from u identifier void identifier U u constructor detail::enable_forward_value<T, U> 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 841 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 367 5 1 function KnG9lJXbUtQ6Ml1KAXAYNGMcF0c= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Constructs the contained value in-place using the given arguments. brief text Constructs the value in-place using the given arguments. param text The arguments to use for in-place construction. args identifier void identifier mwtFNA7SiRZ2GcsbxvFhVCUxbJs= in_place_t 1 identifier Args args constructor std::is_constructible_v<T, Args...> 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 847 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 377 5 1 function f0M4hRrue0gdE2D1UxzRPEsJB9Q= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Constructs the value in-place using the given arguments. param text The initializer list to use for in-place construction. il param text The arguments to use for in-place construction. args identifier void identifier mwtFNA7SiRZ2GcsbxvFhVCUxbJs= in_place_t specialization 3tT5Y8vozttMWXrA/fNw4NcDYTE= initializer_list identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std il 1 identifier Args args constructor std::is_constructible_v<T, std::initializer_list<U>&, Args&&...> 1 ~optional beman/optional/optional.hpp include/beman/optional/optional.hpp 411 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 418 5 1 overloads FcTw/WouzSfU/4NAHUkpesdJRQE= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Destructors destructor tNWsjIl4//E01XnPER/rOsCvKcQ= 6gKCYxiLeMGhYhMv5DhlEhY4My0= identifier void ~optional beman/optional/optional.hpp include/beman/optional/optional.hpp 411 5 1 function tNWsjIl4//E01XnPER/rOsCvKcQ= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Destructs the optional. identifier void destructor std::is_trivially_destructible_v<T> 1 1 1 ~optional beman/optional/optional.hpp include/beman/optional/optional.hpp 883 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 418 5 1 function 6gKCYxiLeMGhYhMv5DhlEhY4My0= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Destroys the optional and its value if it has one. identifier void destructor (!std::is_trivially_destructible_v<T>) 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 439 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 425 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 430 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 447 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 466 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 474 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 481 5 1 overloads H0T0OYCRd1fXNcRPJm+IiiMCjYM= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Assignment operators returns text optional& param text The value to assign. u t-param text The type of the value to assign. U normal YXp2p9DjakNd/Nfgc/Eokq4VaDk= k8cdSVuTO7L981AeVsi5iVPuWvQ= gCgVIPTPPbmIn0fBP9VnLAlxElg= 3EIpANtjbuOdwW0BfFALQwwM3+Q= uH7ciUxmBTttG/DqP2YZ3+8X2Ck= eL7IMxbcyX+8S5/QHpN3PO9McYA= 9TJuUJPhuRU5eLJWznHZWhzNts4= toQhTlIOSw5rtEzgtk9m4yXc6Ww= operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 439 5 1 function YXp2p9DjakNd/Nfgc/Eokq4VaDk= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Copy assigns the value from code text rhs text if it has one. returns text optional& param text The object to copy assign from other identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional 1 identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional other normal std::is_copy_constructible_v<T> && std::is_copy_assignable_v<T> && std::is_trivially_copy_constructible_v<T> && std::is_trivially_copy_assignable_v<T> 1 1 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 899 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 430 5 1 function k8cdSVuTO7L981AeVsi5iVPuWvQ= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Copy assigns the value from code text rhs text if it has one. returns text Reference to the current object param text The object to copy assign from rhs specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional 1 identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal std::is_copy_constructible_v<T> && std::is_copy_assignable_v<T> && (!std::is_trivially_copy_assignable_v<T>) 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 949 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 474 5 1 function gCgVIPTPPbmIn0fBP9VnLAlxElg= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Converting copy assignment operator. paragraph text Copies the value from code text rhs text if there is one. Otherwise resets the contained value in code text *this text . brief text Assigns the contained value from code text rhs text if it has one, destroying the old value if there returns text Reference to the current object param text The object to copy assign from rhs specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal (detail::enable_assign_from_other<T, U, const U&>) 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 454 5 1 function 3EIpANtjbuOdwW0BfFALQwwM3+Q= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Move assigns the value from code text rhs text if it has one. returns text Reference to the current object param text The object to move assign from other identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional other normal std::is_move_constructible_v<T> && std::is_move_assignable_v<T> && std::is_trivially_move_constructible_v<T> && std::is_trivially_move_assignable_v<T> 1 1 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 913 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 447 5 1 function uH7ciUxmBTttG/DqP2YZ3+8X2Ck= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Move assigns the value from code text rhs text if it has one. returns text Reference to the current object param text The object to move assign from rhs specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal std::is_move_constructible_v<T> && std::is_move_assignable_v<T> && (!std::is_trivially_move_assignable_v<T>) 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 973 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 481 5 1 function eL7IMxbcyX+8S5/QHpN3PO9McYA= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Converting move assignment operator. paragraph text Moves the value from code text rhs text if there is one. Otherwise resets the contained value in code text *this text . brief text Assigns the contained value from code text rhs text if it has one, destroying the old value if there returns text Reference to the current object param text The object to move assign from rhs specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal (detail::enable_assign_from_other<T, U, U>) 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 893 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 425 5 1 function 9TJuUJPhuRU5eLJWznHZWhzNts4= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Resets the optional to an empty state. returns text Reference to the current object param text The object to assign from value specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t value normal 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 931 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 466 5 1 function toQhTlIOSw5rtEzgtk9m4yXc6Ww= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Assigns the contained value from code text u text , destroying the old value if there was one. brief text Assigns the contained value from code text u, text destroying the old value if there returns text optional& param text The value to assign. u t-param text The type of the value to assign. U specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional identifier U u normal detail::enable_assign_forward<T, U> 1 and_then beman/optional/optional.hpp include/beman/optional/optional.hpp 1147 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 639 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 653 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 667 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 681 5 1 overloads L1PpAGlFJ2T91+oABQA1uTPDMfU= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Applies a function to the contained value if there is one. returns text auto param text The invocable to apply to the contained value f t-param text The type of the invocable F normal NA9XRom7f2CwVur50MWRMMXYC04= 277WfRzfG5cxBIGCDqlVk7aOtiM= x2l1u6Fl4wvc6PLuvGqWXOdA5kg= jTruTbGYnUR1HK3h5SHaQRNBdCI= and_then beman/optional/optional.hpp include/beman/optional/optional.hpp 1147 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 639 5 1 function NA9XRom7f2CwVur50MWRMMXYC04= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text The return type is the same as code text std::invoke_result_t<F, T&> text , but wrapped in an optional. The function code text f text must return an optional type. brief text Applies a function to the contained value if there is one. returns text auto param text The invocable to apply to the contained value f t-param text The type of the invocable F identifier F f normal 1 and_then beman/optional/optional.hpp include/beman/optional/optional.hpp 1159 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 653 5 1 function 277WfRzfG5cxBIGCDqlVk7aOtiM= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text The return type is the same as code text std::invoke_result_t<F, T&> text , but wrapped in an optional. The function code text f text must return an optional type. brief text Applies a function to the contained value if there is one. returns text auto param text The invocable to apply to the contained value f t-param text The type of the invocable F identifier F f normal 1 and_then beman/optional/optional.hpp include/beman/optional/optional.hpp 1171 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 667 5 1 function x2l1u6Fl4wvc6PLuvGqWXOdA5kg= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text The return type is the same as code text std::invoke_result_t<F, T&> text , but wrapped in an optional. The function code text f text must return an optional type. brief text Applies a function to the contained value if there is one. returns text auto param text The invocable to apply to the contained value f t-param text The type of the invocable F identifier F f normal 1 1 and_then beman/optional/optional.hpp include/beman/optional/optional.hpp 1183 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 681 5 1 function jTruTbGYnUR1HK3h5SHaQRNBdCI= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text The return type is the same as code text std::invoke_result_t<F, T&> text , but wrapped in an optional. The function code text f text must return an optional type. brief text Applies a function to the contained value if there is one. returns text auto param text The invocable to apply to the contained value f t-param text The type of the invocable F identifier F f normal 1 1 begin beman/optional/optional.hpp include/beman/optional/optional.hpp 1040 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 519 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 525 5 1 overloads mvKIFJ/tGdm9BUEpnNp9FPQJS10= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief code text begin text overloads returns text iterator returns text const_iterator normal pv+K7KnyySlPo3AQ76WIs7ePQZA= C5wvIvznNi22pgCxl7FBkGXcscQ= begin beman/optional/optional.hpp include/beman/optional/optional.hpp 1040 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 519 5 1 function pv+K7KnyySlPo3AQ76WIs7ePQZA= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns an iterator to the beginning of the optional. returns text iterator identifier 6P/n8yO8YGsPi3WuM00zv1eh5tY= iterator specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional normal 1 begin beman/optional/optional.hpp include/beman/optional/optional.hpp 1045 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 525 5 1 function C5wvIvznNi22pgCxl7FBkGXcscQ= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a const iterator to the beginning of the optional. returns text const_iterator identifier PTkL6Kye5WLULoeW2qEaaj0NXeI= const_iterator specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional normal 1 1 emplace beman/optional/optional.hpp include/beman/optional/optional.hpp 995 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 491 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 502 5 1 overloads dFKMJ0LSrdW7QkkTxxT8sLDi3QA= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief code text emplace text overloads returns text T& param text The argument list to use in emplacement construction. args param text The initializer list to use in emplacement construction. il normal SnAdjJOjL2qmtWOeZJ9YbDmpYds= grnlkdMGLaN7D0qVZcL705iZffs= identifier T emplace beman/optional/optional.hpp include/beman/optional/optional.hpp 995 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 491 5 1 function SnAdjJOjL2qmtWOeZJ9YbDmpYds= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Constructs the value in-place, destroying the current one if there is one. brief text Constructs the value in-place, destroying the current one if there returns text T& param text The argument list to use in emplacement construction. args identifier T 1 identifier Args args normal 1 emplace beman/optional/optional.hpp include/beman/optional/optional.hpp 1004 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 502 5 1 function grnlkdMGLaN7D0qVZcL705iZffs= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Constructs the value in-place using the given arguments, destroying the current one if there returns text T& param text The initializer list to use in emplacement construction. il param text The argument list to use in emplacement construction. args identifier T specialization 3tT5Y8vozttMWXrA/fNw4NcDYTE= initializer_list identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std il 1 identifier Args args normal 1 end beman/optional/optional.hpp include/beman/optional/optional.hpp 1049 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 531 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 537 5 1 overloads FvMngnDbHNGC0b+W82RL9cT/1NQ= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief code text end text overloads returns text iterator returns text const_iterator normal Ugv+ETWxMvjfi/e9XWjWACaLnFw= Ls0HIy99miTA/QgUABSE+fQB7k8= end beman/optional/optional.hpp include/beman/optional/optional.hpp 1049 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 531 5 1 function Ugv+ETWxMvjfi/e9XWjWACaLnFw= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns an iterator to the end of the optional. returns text iterator identifier 6P/n8yO8YGsPi3WuM00zv1eh5tY= iterator specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional normal 1 end beman/optional/optional.hpp include/beman/optional/optional.hpp 1054 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 537 5 1 function Ls0HIy99miTA/QgUABSE+fQB7k8= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a const iterator to the end of the optional. returns text const_iterator identifier PTkL6Kye5WLULoeW2qEaaj0NXeI= const_iterator specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional normal 1 1 has_value beman/optional/optional.hpp include/beman/optional/optional.hpp 1094 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 584 5 1 function 6t3h6GhzPqBBa77+qGG9pIlXDPw= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Returns whether or not the optional has a value brief text Returns whether or not the optional has a value. returns text bool identifier bool normal 1 1 operator* beman/optional/optional.hpp include/beman/optional/optional.hpp 1073 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 556 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 563 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 570 5 1 overloads MiwCdTrcx+oeEL4Su3kvyDDY0Kc= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a reference to the contained value. returns text T& returns text const T& returns text T&& normal kmoqjyIKIMVvJTzxOMl6UkWHFuA= aOc/ApjaFfvs1c9RgpjDL2tCCy8= kXz4cG41Hyr9eJl1BYCzC6k0pmg= operator* beman/optional/optional.hpp include/beman/optional/optional.hpp 1073 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 556 5 1 function kmoqjyIKIMVvJTzxOMl6UkWHFuA= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Returns the contained value brief text Returns a reference to the contained value. returns text T& identifier T normal 1 operator* beman/optional/optional.hpp include/beman/optional/optional.hpp 1078 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 563 5 1 function aOc/ApjaFfvs1c9RgpjDL2tCCy8= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a reference to the contained value. returns text const T& 1 identifier T normal 1 1 operator* beman/optional/optional.hpp include/beman/optional/optional.hpp 1083 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 570 5 1 function kXz4cG41Hyr9eJl1BYCzC6k0pmg= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a reference to the contained value. returns text T&& identifier T normal 1 operator-> beman/optional/optional.hpp include/beman/optional/optional.hpp 1062 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 543 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 550 5 1 overloads lOtdTot8yAZhMy5y9zq2JW5NRoE= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a pointer to the contained value. returns text T* normal kzDMgarFg/H4UbLFeOJUy/jpuMg= YEhKE5e5IdAl/MYWXeFZRW0Iq4o= operator-> beman/optional/optional.hpp include/beman/optional/optional.hpp 1062 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 543 5 1 function kzDMgarFg/H4UbLFeOJUy/jpuMg= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Returns a pointer to the contained value brief text Returns a pointer to the contained value. returns text a pointer to the contained value. 1 identifier T normal 1 1 operator-> beman/optional/optional.hpp include/beman/optional/optional.hpp 1067 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 550 5 1 function YEhKE5e5IdAl/MYWXeFZRW0Iq4o= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a pointer to the contained value. returns text T* identifier T normal 1 or_else beman/optional/optional.hpp include/beman/optional/optional.hpp 1249 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 736 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 748 5 1 overloads HZ70UfvC+3qFRVRBS8yhqFLlBFA= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief code text or_else text overloads returns text optional returns text optional<T> returns text auto param text The invocable to call if the optional is disengaged. f t-param text An invocable type returning an optional. F normal VzK/XB5ufz22S7P4PYexyKFHYyM= QC9hfotSzRKPcqxIF7lVmbQlJVk= specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional or_else beman/optional/optional.hpp include/beman/optional/optional.hpp 1249 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 736 5 1 function VzK/XB5ufz22S7P4PYexyKFHYyM= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns an optional containing the contained value if it has one, or the result of applying code text f text to the optional if it does not. returns text optional returns text optional<T> param text The invocable to call if the optional is disengaged. f t-param text An invocable type returning an optional. F specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional identifier F f normal (std::invocable<F> && std::copy_constructible<T>) 1 1 or_else beman/optional/optional.hpp include/beman/optional/optional.hpp 1270 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 748 5 1 function QC9hfotSzRKPcqxIF7lVmbQlJVk= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns an optional containing the contained value if it has one, or the result of calling code text f text if it does not. returns text auto returns text optional<T> param text The invocable to call if the optional is disengaged. f t-param text An invocable type returning an optional. F specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional identifier F f normal (std::invocable<F> && std::move_constructible<T>) 1 reset beman/optional/optional.hpp include/beman/optional/optional.hpp 1282 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 757 5 1 function bTJMu3zaBfwK9I2C+ofyz8wR7K8= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Resets the optional to an empty state, destroying the contained value if there is one. identifier void normal 1 swap beman/optional/optional.hpp include/beman/optional/optional.hpp 1019 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 511 5 1 function LzHf/b38WjPqYjOYi4sQzApHUGg= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Swaps this optional with the other. paragraph text If neither optionals have a value, nothing happens. If both have a value, the values are swapped. If one has a value, it is moved to the other and the movee is left valueless. brief text Swaps this optional with the other. param text The optional to swap with. rhs identifier void identifier Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal 1 transform beman/optional/optional.hpp include/beman/optional/optional.hpp 1196 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 692 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 703 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 714 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 725 5 1 overloads jIPvTT21XtZm3hRmVVg0LlBw4Eo= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns an optional containing the result of applying code text f text to the contained value, or an empty optional if there is no contained value. returns text optional returns text auto param text An invocable to apply to the contained value. f normal el6M1DCXjliDpUuaK7cN4p1aKmY= 0a6dSB0m3FNv5idHuDHC8O2tn0c= EKUZGEh0j0oxo12rDBwrUGU+ulg= cMMSO7neVan/uAs9oQ6RkVGr6bY= transform beman/optional/optional.hpp include/beman/optional/optional.hpp 1196 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 692 5 1 function el6M1DCXjliDpUuaK7cN4p1aKmY= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Carries out some operation on the contained object if there is one. brief text Returns an optional containing the result of applying code text f text to the contained value, or an empty optional if there is no contained value. returns text optional param text An invocable to apply to the contained value. f identifier F f normal 1 transform beman/optional/optional.hpp include/beman/optional/optional.hpp 1207 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 703 5 1 function 0a6dSB0m3FNv5idHuDHC8O2tn0c= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns an optional containing the result of applying code text f text to the contained value, or an empty optional if there is no contained value. returns text auto param text An invocable to apply to the contained value. f identifier F f normal 1 transform beman/optional/optional.hpp include/beman/optional/optional.hpp 1218 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 714 5 1 function EKUZGEh0j0oxo12rDBwrUGU+ulg= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns an optional containing the result of applying code text f text to the contained value, or an empty optional if there is no contained value. returns text auto param text An invocable to apply to the contained value. f identifier F f normal 1 1 transform beman/optional/optional.hpp include/beman/optional/optional.hpp 1229 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 725 5 1 function cMMSO7neVan/uAs9oQ6RkVGr6bY= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns an optional containing the result of applying code text f text to the contained value, or an empty optional if there is no contained value. returns text auto param text An invocable to apply to the contained value. f identifier F f normal 1 1 value beman/optional/optional.hpp include/beman/optional/optional.hpp 1101 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 591 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 598 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 605 5 1 overloads KJUEdIU+Yl6FtpbIdVa10N5nncU= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a reference to the contained value. returns text T& returns text const T& returns text T&& normal 05X03ZzuWSaQiySn36G9bywpUZU= mcQbBSKEPph1cKveoe/9PQvnqiE= KnsmxZwrhjrKCjkda/+P/Fc0rRU= value beman/optional/optional.hpp include/beman/optional/optional.hpp 1101 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 591 5 1 function 05X03ZzuWSaQiySn36G9bywpUZU= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Returns the contained value if there is one, otherwise throws bad_optional_access brief text Returns a reference to the contained value. returns text T& identifier T normal 1 value beman/optional/optional.hpp include/beman/optional/optional.hpp 1105 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 598 5 1 function mcQbBSKEPph1cKveoe/9PQvnqiE= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a reference to the contained value. returns text const T& 1 identifier T normal 1 1 value beman/optional/optional.hpp include/beman/optional/optional.hpp 1109 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 605 5 1 function KnsmxZwrhjrKCjkda/+P/Fc0rRU= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns a reference to the contained value. returns text T&& identifier T normal 1 value_or beman/optional/optional.hpp include/beman/optional/optional.hpp 1123 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 614 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 623 5 1 overloads OsNMNIZ4UWKQoK6y5JtQHOEcLTw= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns the contained value if there is one, otherwise returns code text u text . returns text T param text The value to return in the empty case u t-param text The type of the alternate value U normal V0wguEJ9dQ433WZNSWfVBc3A1PE= t8AuvKSjgknA59MPMMvD5F4AGhw= specialization oBQU97IoEgHraQ81HgvCM2NsQ0s= remove_cv_t identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std value_or beman/optional/optional.hpp include/beman/optional/optional.hpp 1123 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 614 5 1 function V0wguEJ9dQ433WZNSWfVBc3A1PE= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= paragraph text Returns the contained value if there is one, otherwise returns code text u brief text Returns the contained value if there is one, otherwise returns code text u text . returns text T param text The value to return in the empty case u t-param text The type of the alternate value U specialization oBQU97IoEgHraQ81HgvCM2NsQ0s= remove_cv_t identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std identifier U u normal 1 1 value_or beman/optional/optional.hpp include/beman/optional/optional.hpp 1134 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 623 5 1 function t8AuvKSjgknA59MPMMvD5F4AGhw= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Returns the contained value if there is one, otherwise returns code text u text . returns text T param text The value to return in the empty case u t-param text The type of the alternate value U specialization oBQU97IoEgHraQ81HgvCM2NsQ0s= remove_cv_t identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std identifier U u normal 1 operator bool beman/optional/optional.hpp include/beman/optional/optional.hpp 1088 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 577 5 1 function 2PRpxJIgA4IeM03nrPqgz/gWEwM= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text Converts the optional to a boolean indicating whether it has a value. returns text bool identifier bool conversion 1 1 _ beman/optional/optional.hpp include/beman/optional/optional.hpp 766 9 1 variable bhi4SqTfa4/ZxLUXrOV2W7orrjA= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text The empty state of the optional. identifier /qcgW01qPkslPc2T6YxbhqJlyJc= empty {} 1 1 value_ beman/optional/optional.hpp include/beman/optional/optional.hpp 772 9 1 variable bX2YjchFyI55CEfjEgcfj+ScNCU= regular Pvkqsm2J3WYxmvM1xBy22WjfJxg= brief text The contained value of the optional. identifier T 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1519 1 1 record Zs/QQI/wnJbLRYvV0XBQmu3hGTg= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text A specialization of code text optional text for references. class ImzGgmBJunwnXoDQix9uN5onnAc= HKgHcnmvhPobNd+aXdcalJHeiv8= OyGv5DjXxr0vruShL/Adef053mA= wjY4EUwBn1tkTLFIZIdPmL64peM= 9eNQ8WCb/7kyLSIotNCdoVrE2zU= +CIsV+Wu2L3LpDdj+cSlI+ffohE= X1AIJ9Ah4bgrav3VQir5ICrhAsA= 8T8ZZPRS4VgGFjx2enhcNW85hRw= UNJe5kObJeo3tPH32c0hMzSV3gs= aY62oe+NUw8aeR3uvpBwzQEUSHQ= rmdpui0fPtFx6oMCmgOLFa8hNGU= l21I05K2PgxKkWyfKHQF5ICcKyY= lQfRDUtH/pSoPlleSfx2qW38Xa8= C7IX7rHsnHDv4WObAGfzwOLKpII= 0sezOtQcwTaucSDTeDMFLP2y+a8= 5MuSAu0AgI9arI/EDEmzoWAAxVo= VAB1HjckTR+EtBS0EQS3k1yoFN4= HdkiHX5giyu1EfpJ1/OhYmg/pkw= OosCP+eHvPFAql3lYwgG+tuIvl4= Pvkqsm2J3WYxmvM1xBy22WjfJxg= iterator beman/optional/optional.hpp include/beman/optional/optional.hpp 1530 5 1 typedef ImzGgmBJunwnXoDQix9uN5onnAc= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text The type of the iterator for the optional. specialization CCKBr7Trw4NFH3nVTXCf/PBYKig= contiguous_iterator identifier 5HzEsKRzStyLkoUmcy9wOt1Mb4o= detail 1 value_type beman/optional/optional.hpp include/beman/optional/optional.hpp 1525 5 1 typedef HKgHcnmvhPobNd+aXdcalJHeiv8= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text The type of the value contained in the optional. identifier T 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1538 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1559 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1608 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1624 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1640 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1657 5 1 overloads OyGv5DjXxr0vruShL/Adef053mA= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Constructors param text The value to construct from. u param text The value to construct in-place from. arg constructor cLfu7gTNAV5I5oKU2pDiU9UgguU= o9GpKj7SPAjriVk/EiFzGmbsZWY= CCXlx4U/aRVorHvd3DujDiYba2M= ddYkMYmFrfRtoHicIP5sSZ1r6Mc= tJbnKoQ0dxqqiw31K7/V/+ng46Y= lMAp5H0PM4a48bguNHmICzLWecs= qPFYWT1nF6uPdmg/JBagMY2wpYE= aJ7YQT0oJAirrxOxw+smqxZFMbI= pG6X8tBLgkEbXap1K1x+1d96kvs= JrxleJZYawtLhjnzwFBB6mIDqUI= LF45qjKfjPRK2+C+JFfKRJojcbc= yStSSFKaZkGo+AdvR1sk+lBG2E0= JR0R0D2x2blR9SUd9+o049txEus= WEMFUlotZ/mnzGGNGVTs/NF2SUw= identifier void optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1538 5 1 function cLfu7gTNAV5I5oKU2pDiU9UgguU= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Default constructor. identifier void constructor 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1551 5 1 function o9GpKj7SPAjriVk/EiFzGmbsZWY= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs an empty optional if the rhs is empty, otherwise constructs the contained value from the rhs. brief text Copy constructor. param text The object to copy construct from rhs identifier void 1 identifier Zs/QQI/wnJbLRYvV0XBQmu3hGTg= optional rhs constructor 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1543 5 1 function CCXlx4U/aRVorHvd3DujDiYba2M= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Constructs an empty optional. param text The object to construct from value identifier void identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t value constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1674 5 1 function ddYkMYmFrfRtoHicIP5sSZ1r6Mc= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from the rhs if it has a value, otherwise constructs an empty optional. If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Constructs an optional from another optional of type U identifier void specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1943 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1608 5 1 function tJbnKoQ0dxqqiw31K7/V/+ng46Y= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from the rhs if it has a value, otherwise constructs an empty optional. If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Constructs an optional from another optional of type U. param text The optional to construct from. rhs identifier void specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1690 5 1 function lMAp5H0PM4a48bguNHmICzLWecs= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from the rhs if it has a value, otherwise constructs an empty optional. If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Constructs an optional from another optional of type U identifier void 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1953 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1624 5 1 function qPFYWT1nF6uPdmg/JBagMY2wpYE= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from the rhs if it has a value, otherwise constructs an empty optional. If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Constructs an optional from another optional of type U. param text The optional to construct from. rhs identifier void 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1572 5 1 function aJ7YQT0oJAirrxOxw+smqxZFMbI= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from code text u text if it is convertible to code text T& text . If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Construct from a U param text The value to construct from. u identifier void identifier U u constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1586 5 1 function pG6X8tBLgkEbXap1K1x+1d96kvs= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Constructs an optional from a U, but deletes the constructor if param text The object to move construct from u identifier void identifier U u constructor 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1706 5 1 function JrxleJZYawtLhjnzwFBB6mIDqUI= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from the rhs if it has a value, otherwise constructs an empty optional. If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Constructs an optional from another optional of type U identifier void specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1963 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1640 5 1 function LF45qjKfjPRK2+C+JFfKRJojcbc= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from the rhs if it has a value, otherwise constructs an empty optional. If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Constructs an optional from another optional of type U. param text The optional to construct from. rhs identifier void specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1722 5 1 function yStSSFKaZkGo+AdvR1sk+lBG2E0= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from the rhs if it has a value, otherwise constructs an empty optional. If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Constructs an optional from another optional of type U identifier void 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor 1 1 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1973 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1657 5 1 function JR0R0D2x2blR9SUd9+o049txEus= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from the rhs if it has a value, otherwise constructs an empty optional. If code text T& text can be constructed from a temporary, this constructor is deleted to prevent binding a temporary to a reference. brief text Constructs an optional from another optional of type U. param text The optional to construct from. rhs t-param text The type contained the right hand side optional. U identifier void 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs constructor 1 optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1927 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1559 5 1 function WEMFUlotZ/mnzGGNGVTs/NF2SUw= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text In-place constructor. param text The value to construct in-place from. arg identifier void identifier mwtFNA7SiRZ2GcsbxvFhVCUxbJs= in_place_t identifier Arg arg constructor 1 ~optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1734 5 1 function wjY4EUwBn1tkTLFIZIdPmL64peM= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Does not destroy the contained value, as it is a reference. brief text Destructor. identifier void destructor 1 1 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 1757 5 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1746 5 1 overloads 9eNQ8WCb/7kyLSIotNCdoVrE2zU= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Assignment operators returns text optional& param text The value to assign. rhs normal TFL+XmGLwky00X4OCkEmF/A2uPY= 4kuemHPFlUG4YOumwfEoqFBK5Xs= operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 1757 5 1 function TFL+XmGLwky00X4OCkEmF/A2uPY= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text If code text rhs text has a value, assigns it to the contained value. Otherwise resets the contained value in code text *this text . brief text Assignment operator. returns text optional& param text The value to assign. rhs identifier Zs/QQI/wnJbLRYvV0XBQmu3hGTg= optional 1 identifier Zs/QQI/wnJbLRYvV0XBQmu3hGTg= optional rhs normal 1 1 1 operator= beman/optional/optional.hpp include/beman/optional/optional.hpp 1984 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1746 5 1 function 4kuemHPFlUG4YOumwfEoqFBK5Xs= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Destroys the current value if there is one, and leaves the optional in an empty state. brief text Nullopt assignment operator. returns text optional& param text The object to assign from value specialization Zs/QQI/wnJbLRYvV0XBQmu3hGTg= optional identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t value normal 1 and_then beman/optional/optional.hpp include/beman/optional/optional.hpp 2060 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1865 5 1 function +CIsV+Wu2L3LpDdj+cSlI+ffohE= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text The return type is the same as code text std::invoke_result_t<F, T&> text , but wrapped in an optional. The function code text f text must return an optional type. brief text Applies a function to the contained value if there is one. returns text auto param text The invocable to apply to the contained value f t-param text The type of the invocable F identifier F f normal 1 1 begin beman/optional/optional.hpp include/beman/optional/optional.hpp 2007 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1787 5 1 function X1AIJ9Ah4bgrav3VQir5ICrhAsA= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Returns an iterator to the beginning of the optional. returns text iterator identifier ImzGgmBJunwnXoDQix9uN5onnAc= iterator specialization Zs/QQI/wnJbLRYvV0XBQmu3hGTg= optional normal 1 1 emplace beman/optional/optional.hpp include/beman/optional/optional.hpp 1991 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1769 5 1 function 8T8ZZPRS4VgGFjx2enhcNW85hRw= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text Constructs the contained value from code text u text if it is convertible to code text T& text . brief text Emplaces a new value in the optional, destroying the current one if the optional is engaged. returns text T& param text The value to emplace. u t-param text The type of the value to emplace. U identifier T identifier U u normal 1 end beman/optional/optional.hpp include/beman/optional/optional.hpp 2012 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1794 5 1 function UNJe5kObJeo3tPH32c0hMzSV3gs= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Returns an iterator to the end of the optional. returns text iterator identifier ImzGgmBJunwnXoDQix9uN5onnAc= iterator specialization Zs/QQI/wnJbLRYvV0XBQmu3hGTg= optional normal 1 1 has_value beman/optional/optional.hpp include/beman/optional/optional.hpp 2032 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1823 5 1 function aY62oe+NUw8aeR3uvpBwzQEUSHQ= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Checks if the optional has a value. returns text bool identifier bool normal 1 1 operator* beman/optional/optional.hpp include/beman/optional/optional.hpp 2023 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1809 5 1 function rmdpui0fPtFx6oMCmgOLFa8hNGU= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Returns a reference to the contained value. returns text T& identifier T normal 1 1 operator-> beman/optional/optional.hpp include/beman/optional/optional.hpp 2018 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1802 5 1 function l21I05K2PgxKkWyfKHQF5ICcKyY= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Returns a pointer to the contained value. returns text T* identifier T normal 1 1 or_else beman/optional/optional.hpp include/beman/optional/optional.hpp 2101 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1892 5 1 function lQfRDUtH/pSoPlleSfx2qW38Xa8= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text The return type is the same as the return type of code text f, text which must return an optional type. brief text Calls a function if the optional is empty. returns text optional returns text optional<T&> param text The invocable to apply to the contained value f t-param text The type of the invocable F specialization Zs/QQI/wnJbLRYvV0XBQmu3hGTg= optional identifier F f normal (std::invocable<F>) 1 1 reset beman/optional/optional.hpp include/beman/optional/optional.hpp 2116 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1901 5 1 function C7IX7rHsnHDv4WObAGfzwOLKpII= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Resets the optional to an empty state. identifier void normal 1 swap beman/optional/optional.hpp include/beman/optional/optional.hpp 2000 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1779 5 1 function 0sezOtQcwTaucSDTeDMFLP2y+a8= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Swaps the contents of this optional with another. param text The value to swap with. rhs identifier void identifier Zs/QQI/wnJbLRYvV0XBQmu3hGTg= optional rhs normal 1 transform beman/optional/optional.hpp include/beman/optional/optional.hpp 2077 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1879 5 1 function 5MuSAu0AgI9arI/EDEmzoWAAxVo= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= paragraph text The return type is the same as code text std::invoke_result_t<F, T&> text , but wrapped in an optional. brief text Applies a function to the contained value if there is one. returns text optional<std::invoke_result_t<F, T&>> param text The invocable to apply to the contained value f t-param text The type of the invocable F specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional identifier F f normal 1 1 value beman/optional/optional.hpp include/beman/optional/optional.hpp 2037 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1830 5 1 function VAB1HjckTR+EtBS0EQS3k1yoFN4= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Returns the contained value if there is one, otherwise throws returns text T& identifier T normal 1 1 value_or beman/optional/optional.hpp include/beman/optional/optional.hpp 2046 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1849 5 1 function HdkiHX5giyu1EfpJ1/OhYmg/pkw= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Returns the contained value if there is one, otherwise returns code text u text . returns text std::remove_cv_t<T> param text The value to return in the empty case u t-param text The type of the alternate value U specialization WC8G0xFiBsDp7q5TEczwwNV9uls= decay_t identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std identifier U u normal 1 1 operator bool beman/optional/optional.hpp include/beman/optional/optional.hpp 2028 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 1816 5 1 function OosCP+eHvPFAql3lYwgG+tuIvl4= regular Zs/QQI/wnJbLRYvV0XBQmu3hGTg= brief text Converts the optional to a boolean value. returns text bool identifier bool conversion 1 1 make_optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1454 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 232 1 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 237 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 241 1 overloads JD1e2JKrmzHwXwixpQcF00Hfyi0= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Make an optional normal XDbVYkHspG4PB47wpWiRZOo0NlY= CdeCpJt0UcmBZE6rjeg3bNrs8/c= /sr6Giocx2Y8H6bVb17M9qnkBo4= make_optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1454 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 232 1 1 function XDbVYkHspG4PB47wpWiRZOo0NlY= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Make an optional returns text Optional Objects reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional identifier T t normal std::is_constructible_v<std::decay_t<T>, T> make_optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1462 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 237 1 function CdeCpJt0UcmBZE6rjeg3bNrs8/c= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional 1 identifier Args args normal std::is_constructible_v<T, Args...> make_optional beman/optional/optional.hpp include/beman/optional/optional.hpp 1470 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 241 1 function /sr6Giocx2Y8H6bVb17M9qnkBo4= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional specialization 3tT5Y8vozttMWXrA/fNw4NcDYTE= initializer_list identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std il 1 identifier Args args normal std::is_constructible_v<T, std::initializer_list<U>&, Args...> swap beman/optional/optional.hpp include/beman/optional/optional.hpp 1447 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 225 1 1 function h7d7FYRcQ1GHFPgVi9Bey+kSfwk= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Swap param text Optional Objects x param text Optional Objects y reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier void specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional x specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional y normal std::is_move_constructible_v<T> && std::is_swappable_v<T> operator== beman/optional/optional.hpp include/beman/optional/optional.hpp 127 5 beman/optional/optional.hpp include/beman/optional/optional.hpp 141 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 163 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 169 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 173 1 overloads RJcVwVLG7J/h9o/JCZLV3DxqCTg= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Equality operators normal Op32q7BeWyrksJnEaOtQxHjxWjk= h5L6UUxvyCnZSKXkcV9/2OpLB10= ATfH0MV8EAQE6oE3e2OWsJsXhbs= ldpyPTVm1Y7c/9DQKi74IcVueYs= swsGy9qcHw7Y8Qpg4+/Y3T2iZ3U= identifier bool operator== beman/optional/optional.hpp include/beman/optional/optional.hpp 127 5 function Op32q7BeWyrksJnEaOtQxHjxWjk= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Equality operator returns code text true text if the objects are equal, code text false text otherwise param text The left operand lhs param text The right operand rhs identifier bool identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t lhs identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t rhs normal operator== beman/optional/optional.hpp include/beman/optional/optional.hpp 1296 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 141 1 function h5L6UUxvyCnZSKXkcV9/2OpLB10= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Equality operator returns code text true text if the objects are equal, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal detail::optional_eq_rel<T, U> operator== beman/optional/optional.hpp include/beman/optional/optional.hpp 1344 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 163 1 function ATfH0MV8EAQE6oE3e2OWsJsXhbs= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Equality operator returns code text true text if the objects are equal, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t rhs normal operator== beman/optional/optional.hpp include/beman/optional/optional.hpp 1355 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 169 1 function ldpyPTVm1Y7c/9DQKi74IcVueYs= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Equality operator returns code text true text if the objects are equal, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 identifier U rhs normal (!detail::is_optional<U>) && detail::optional_eq_rel<T, U> operator== beman/optional/optional.hpp include/beman/optional/optional.hpp 1362 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 173 1 function swsGy9qcHw7Y8Qpg4+/Y3T2iZ3U= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Equality operator returns code text true text if the objects are equal, code text false text otherwise param text The left operand lhs param text The right operand rhs identifier bool 1 identifier T lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal (!detail::is_optional<T>) && detail::optional_eq_rel<T, U> operator!= beman/optional/optional.hpp include/beman/optional/optional.hpp 1303 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 144 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 177 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 181 1 overloads zqArjaAEi8qVfzlObBlH5MKWrlo= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Inequality operators normal 60GHDiC6o64xbYKp83E3A5iPrhE= 2G159R1+8b1xkOK9u3FF3QDcAUY= 1SR8jKCo/+PLXmlvDiRPyiRBZPs= identifier bool operator!= beman/optional/optional.hpp include/beman/optional/optional.hpp 1303 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 144 1 function 60GHDiC6o64xbYKp83E3A5iPrhE= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Inequality operator returns code text true text if the objects are not equal, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal detail::optional_ne_rel<T, U> operator!= beman/optional/optional.hpp include/beman/optional/optional.hpp 1369 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 177 1 function 2G159R1+8b1xkOK9u3FF3QDcAUY= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Inequality operator returns code text true text if the objects are not equal, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 identifier U rhs normal (!detail::is_optional<U>) && detail::optional_ne_rel<T, U> operator!= beman/optional/optional.hpp include/beman/optional/optional.hpp 1376 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 181 1 function 1SR8jKCo/+PLXmlvDiRPyiRBZPs= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Inequality operator returns code text true text if the objects are not equal, code text false text otherwise param text The left operand lhs param text The right operand rhs identifier bool 1 identifier T lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal (!detail::is_optional<T>) && detail::optional_ne_rel<T, U> operator< beman/optional/optional.hpp include/beman/optional/optional.hpp 1310 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 147 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 185 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 189 1 overloads d1BE23ziL5torDYlwcMppvTbJJE= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Less-than operators normal 1H2o8wwBLBtfWFOcBX54+6RBLVU= jqNZVersCFRVodB+gdVnvZn9RP4= Q3zo2xz+co6fbUCszzlZM+qhN6k= identifier bool operator< beman/optional/optional.hpp include/beman/optional/optional.hpp 1310 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 147 1 function 1H2o8wwBLBtfWFOcBX54+6RBLVU= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Less-than operator returns code text true text if the left object is less than the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal detail::optional_lt_rel<T, U> operator< beman/optional/optional.hpp include/beman/optional/optional.hpp 1383 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 185 1 function jqNZVersCFRVodB+gdVnvZn9RP4= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Less-than operator returns code text true text if the left object is less than the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 identifier U rhs normal (!detail::is_optional<U>) && detail::optional_lt_rel<T, U> operator< beman/optional/optional.hpp include/beman/optional/optional.hpp 1390 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 189 1 function Q3zo2xz+co6fbUCszzlZM+qhN6k= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Less-than operator returns code text true text if the left object is less than the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs identifier bool 1 identifier T lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal (!detail::is_optional<T>) && detail::optional_lt_rel<T, U> operator<= beman/optional/optional.hpp include/beman/optional/optional.hpp 1324 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 153 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 201 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 205 1 overloads WTsPpLiJO8U0BYvaXj8GHDIyO44= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Less-than-or-equal operators normal FWQR8LQnPEO5+/SRa8W4Zc4jDlQ= +NwYIqZvYZCJp+QAWW6cbbSYqVU= wDJCUq1O0t9CKaGwSJFDFgao8ow= identifier bool operator<= beman/optional/optional.hpp include/beman/optional/optional.hpp 1324 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 153 1 function FWQR8LQnPEO5+/SRa8W4Zc4jDlQ= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Less-than-or-equal operator returns code text true text if the left object is less than or equal to the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal detail::optional_le_rel<T, U> operator<= beman/optional/optional.hpp include/beman/optional/optional.hpp 1411 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 201 1 function +NwYIqZvYZCJp+QAWW6cbbSYqVU= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Less-than-or-equal operator returns code text true text if the left object is less than or equal to the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 identifier U rhs normal (!detail::is_optional<U>) && detail::optional_le_rel<T, U> operator<= beman/optional/optional.hpp include/beman/optional/optional.hpp 1418 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 205 1 function wDJCUq1O0t9CKaGwSJFDFgao8ow= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Less-than-or-equal operator returns code text true text if the left object is less than or equal to the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs identifier bool 1 identifier T lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal (!detail::is_optional<T>) && detail::optional_le_rel<T, U> operator> beman/optional/optional.hpp include/beman/optional/optional.hpp 1317 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 150 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 193 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 197 1 overloads VgbIshRRKmNCyuTfwOcl5MmpwkM= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Greater-than operators normal hMFh4M52EIPFjJB+10a7s1LJuzw= 0xp8ORXBP85+U8pJtrI9nkQUumg= MmqVacvEYzB7Pa687CdgZ8+52JI= identifier bool operator> beman/optional/optional.hpp include/beman/optional/optional.hpp 1317 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 150 1 function hMFh4M52EIPFjJB+10a7s1LJuzw= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Greater-than operator returns code text true text if the left object is greater than the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal detail::optional_gt_rel<T, U> operator> beman/optional/optional.hpp include/beman/optional/optional.hpp 1397 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 193 1 function 0xp8ORXBP85+U8pJtrI9nkQUumg= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Greater-than operator returns code text true text if the left object is greater than the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 identifier U rhs normal (!detail::is_optional<U>) && detail::optional_gt_rel<T, U> operator> beman/optional/optional.hpp include/beman/optional/optional.hpp 1404 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 197 1 function MmqVacvEYzB7Pa687CdgZ8+52JI= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Greater-than operator returns code text true text if the left object is greater than the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs identifier bool 1 identifier T lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal (!detail::is_optional<T>) && detail::optional_gt_rel<T, U> operator>= beman/optional/optional.hpp include/beman/optional/optional.hpp 1331 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 156 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 209 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 213 1 overloads lXqpsN2bfuokQhWN7H2Mr5TEESI= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Greater-than-or-equal operators normal 8yrDHvDuwqixD59O2cuFDo+EtbE= CzwIKHqqfNwhTTh8LWJ/LcPwrTA= 08Dphw9EwUFrQNt+fAd0HKU/v5s= identifier bool operator>= beman/optional/optional.hpp include/beman/optional/optional.hpp 1331 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 156 1 function 8yrDHvDuwqixD59O2cuFDo+EtbE= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Greater-than-or-equal operator returns code text true text if the left object is greater than or equal to the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal detail::optional_ge_rel<T, U> operator>= beman/optional/optional.hpp include/beman/optional/optional.hpp 1425 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 209 1 function CzwIKHqqfNwhTTh8LWJ/LcPwrTA= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Greater-than-or-equal operator returns code text true text if the left object is greater than or equal to the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier bool 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional lhs 1 identifier U rhs normal (!detail::is_optional<U>) && detail::optional_ge_rel<T, U> operator>= beman/optional/optional.hpp include/beman/optional/optional.hpp 1432 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 213 1 function 08Dphw9EwUFrQNt+fAd0HKU/v5s= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Greater-than-or-equal operator returns code text true text if the left object is greater than or equal to the right object, code text false text otherwise param text The left operand lhs param text The right operand rhs identifier bool 1 identifier T lhs 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional rhs normal (!detail::is_optional<T>) && detail::optional_ge_rel<T, U> operator<=> beman/optional/optional.hpp include/beman/optional/optional.hpp 129 5 beman/optional/optional.hpp include/beman/optional/optional.hpp 159 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 165 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 217 1 overloads QzXoOOUPIgp2h8E2tTZ0kf1oZ+c= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Three-way comparison operators normal pgYKFK/pI9e+W3RmO0EIWYyr3ww= ndNMB3Ehouv4lF1jzOa2IYgjEh4= VgontnHUiNvzkpoRIFv2Vvc88mo= Pmyd8rtgiEpg/HYz7tilkteBFhg= operator<=> beman/optional/optional.hpp include/beman/optional/optional.hpp 129 5 function pgYKFK/pI9e+W3RmO0EIWYyr3ww= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Three-way comparison operator returns text The relative order of the objects param text The left operand lhs param text The right operand rhs identifier xNBZKqeObqzKNIkFhNPAEF16IM4= strong_ordering identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t lhs identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t rhs normal operator<=> beman/optional/optional.hpp include/beman/optional/optional.hpp 1338 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 159 1 function ndNMB3Ehouv4lF1jzOa2IYgjEh4= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Three-way comparison operator returns text The relative order of the objects param text The left operand x param text The right operand y reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= specialization gTfDx7VqruV4aCClmwhF4Yb7fEU= compare_three_way_result_t identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional x 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional y normal operator<=> beman/optional/optional.hpp include/beman/optional/optional.hpp 1349 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 165 1 function VgontnHUiNvzkpoRIFv2Vvc88mo= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Three-way comparison operator returns text The relative order of the objects param text The left operand x param text The right operand rhs reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= identifier xNBZKqeObqzKNIkFhNPAEF16IM4= strong_ordering identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional x identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t rhs normal operator<=> beman/optional/optional.hpp include/beman/optional/optional.hpp 1439 1 beman/optional/optional.hpp include/beman/optional/optional.hpp 217 1 function Pmyd8rtgiEpg/HYz7tilkteBFhg= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Three-way comparison operator returns text The relative order of the objects param text The left operand x param text The right operand v reference optional Pvkqsm2J3WYxmvM1xBy22WjfJxg= specialization gTfDx7VqruV4aCClmwhF4Yb7fEU= compare_three_way_result_t identifier eIvg7iueGIPcE8p1NVfngsp2ojw= std 1 specialization Pvkqsm2J3WYxmvM1xBy22WjfJxg= optional x 1 identifier U v normal in_place beman/optional/optional.hpp include/beman/optional/optional.hpp 71 1 1 variable LGxPsHTRkREspc6wFZCA+H1/yPk= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Tag for in-place construction identifier mwtFNA7SiRZ2GcsbxvFhVCUxbJs= in_place_t in_place{} 1 1 nullopt beman/optional/optional.hpp include/beman/optional/optional.hpp 135 1 1 variable XJiUqbGEdK6DROB3Nrm3UwVrXzc= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Tag to disengage optional objects. identifier qm9ez48c7jM2APsMBjONlFHv85U= nullopt_t nullopt{nullopt_t::Tag::tag} 1 1 is_derived_from_optional beman/optional/optional.hpp include/beman/optional/optional.hpp 104 1 1 concept 9xISP7ucNqSnlc7wjTUi6kniZpI= regular a5kXR3ZLcgojav1V+kZ4pHxrrv8= brief text Concept for checking if derived from optional. requires(const T& t) { // exposition only []<class U>(const optional<U>&) {}(t); }