[#mp_units-clamp_non_negative]
= xref:mp_units.adoc[mp_units]::clamp_non_negative
:relfileprefix: ../
:mrdocs:

Policy that clamps the value to [0, ∞).]

== Synopsis

Declared in `<mp‐units/overflow_policies.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct clamp_non_negative;
----

== Description

Saturates negative values to zero. Use when small negative values can arise from floating‐point rounding in a naturally non‐negative domain (e.g., a computed energy that rounds to −1e−15 J should be treated as 0 J rather than signalling an error).

== Member Functions

[cols=1]
|===
| Name
| xref:mp_units/clamp_non_negative/operator_call.adoc[`operator()`] 
|===

== Data Members

[cols=1]
|===
| Name
| xref:mp_units/clamp_non_negative/min.adoc[`min`] 
|===


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