std::nothrow_t (3) Linux Manual Page

std::nothrow_t – std::nothrow_t

Synopsis

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
nothrow (constant)
               allocation functions
operator_new (function)
operator_new[]