std::nothrow_t

Defined in header <new>
struct nothrow_t {};
(until C++17)
struct nothrow_t { explicit nothrow_t() = default; };
(since C++17)

std::nothrow_t is an empty class type used to disambiguate the overloads of throwing and non-throwing allocation functions.

See also

an object of type nothrow_t used to select an non-throwing allocation function
(constant)
allocation functions
(function)

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