Macro to replace C++ operator new

Question

Is it possible to create macros to replace all forms of operator new with overloads that include additional args...say __FILE__ and __LINE__<

Answer 1

3.7.4 Dynamic storage duration

2 The library provides default definitions for the global allocation and deallocation functions. Some global allocation and deallocation functions are replaceable (18.5.1). A C++ program shall provide at most one definition of a replaceable allocation or deallocation function. Any such function definition replaces the default version provided in the library (17.6.4.6) [...]

17.6.4.6 Replacement functions

2. A C++ program may provide the definition for any of eight dynamic memory allocation function signatures declared in header (3.7.4, Clause 18):

   • operator new(std::size_t)
   • operator new(std::size_t, const std::nothrow_t&)
   • operator new[](std::size_t)
   • operator new[](std::size_t, const std::nothrow_t&)
   • operator delete(void*)
   • operator delete(void*, const std::nothrow_t&)
   • operator delete[](void*)
   • operator delete[](void*, const std::nothrow_t&)

Hope this clarifies what is a legal overload and what isn't.

This may be of interest to a few here:

#define delete cout <<  "delete called at: " << __LINE__ << " of " << __FILE__  << endl, delete 

using namespace std;

void *operator new(size_t size, ostream& o, char *f, unsigned l) {
    o << "new called at: " << l << " of " << f << endl;
    return ::new char[size];
}

int main() {
    int *a = new(cout, __FILE__, __LINE__) int;
    delete a;
}

Caveat Lector: What I do here is a Bad Thing (TM) to do -- overloading new/delete globally.