std::nothrow_t (3) - Linux Manuals

std::nothrow_t: std::nothrow_t

NAME

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.