[#mp_units-utility-safe_int-07-2constructor-0b]
= xref:mp_units.adoc[mp_units]::xref:mp_units/utility.adoc[utility]::xref:mp_units/utility/safe_int-07.adoc[safe_int]::safe_int
:relfileprefix: ../../../
:mrdocs:

Construct from `U`

== Synopsis

Declared in `<mp‐units/utility/safe_int.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename U>
requires (!treat_as_floating_point<std::remove_cvref_t<U>>) && std::is_constructible_v<T, U>
[[nodiscard]]
constexpr
explicit(!detail::is_value_preserving_v<std::remove_cvref_t<U>, T> || !std::convertible_to<U, T>)
safe_int(U const& v);
----

== Return Value

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *v*
| The object to copy construct from
|===


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