is_nothrow_assignable Class
Visual Studio 2015
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Tests whether a value of From type can be assigned to To type and the assignment is known not to throw.
template <class To, class From> struct is_nothrow_assignable;
Parameters
To
The type of the object that receives the assignment.
From
The type of the object that provides the value.
The expression declval<To>() = declval<From>() must be well-formed and must be known to the compiler not to throw. Both From and To must be complete types, void, or arrays of unknown bound.
Header: <type_traits>
Namespace: std
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