[#mp_units-constraint_violation_handler-0a-on_violation]
= xref:mp_units.adoc[mp_units]::xref:mp_units/constraint_violation_handler-0a.adoc[constraint_violation_handler<safe_int<T, ErrorPolicy>>]::on_violation
:relfileprefix: ../../
:mrdocs:

== Synopsis

Declared in `<mp‐units/safe_int.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
static
void
on_violation(std::string_view msg);
----


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