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

== Synopsis

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

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


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