Using the ::operator new function

In accordance with the ISO C++ Standard, the ::operator new(std::size_t) throws an exception when memory allocation fails rather than raising a signal. If the exception is not caught, std::terminate() is called.

The compiler option --force_new_nothrow turns all new calls in a compilation into calls to ::operator new(std::size_t, std::nothrow_t&) or :operator new[](std::size_t, std::nothrow_t&). However, this does not affect operator new calls in libraries, nor calls to any class-specific operator new. See --force_new_nothrow, --no_force_new_nothrow for more information.