10.5 Using the ::operator new function in ARM C++
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&)
::operator new(std::size_t, std::nothrow_t&). However, this does
operator new calls in libraries, nor calls to any class-specific
In RVCT v2.0, when the
::operator new function
ran out of memory, it raised the signal SIGOUTOFHEAP,
instead of throwing a C++ exception.
In the current release, it is possible to install a
raise a signal and so restore the RVCT v2.0 behavior.
Do not rely on the implementation details of this behavior,
because it might change in future releases.