I read other posts (one example: How could I sensibly overload placement operator new?) that C++ standard disallows overloading the global placement new.
GCC did throw an error when I defined:
void* operator new(size_t sz, void*) {
std::cout << __PRETTY_FUNCTION__ << std::endl;
}
However, GCC allows me to define:
template <class T>
void* operator new(size_t sz, T t) {
std::cout << __PRETTY_FUNCTION__ << std::endl;
}
I tried to use placement new and the function template above did get call.
How does it differ from replacing placement new? What's the rationale that C++ standard forbids overloading global placement new?
