#include <new>
void* operator new(std::size_t size) throw(std::bad_alloc) {
while (true) {
void* result = allocate_from_some_other_source(size);
if (result) return result;
std::new_handler nh = std::set_new_handler(0);
std::set_new_handler(nh); // put it back
// this is clumsy, I know, but there's no portable way to query the current
// new handler without replacing it
// you don't have to use new handlers if you don't want to
if (!nh) throw std::bad_alloc();
nh();
}
}
void operator delete(void* ptr) throw() {
if (ptr) { // if your deallocation function must not receive null pointers
// then you must check first
// checking first regardless always works correctly, if you're unsure
deallocate_from_some_other_source(ptr);
}
}
void* operator new[](std::size_t size) throw(std::bad_alloc) {
return operator new(size); // defer to non-array version
}
void operator delete[](void* ptr) throw() {
operator delete(ptr); // defer to non-array version
}
Eh bien, comment communiquez-vous avec l'autre appareil? Votre plateforme fournit-elle une API pour cela? C++ n'aurait aucun moyen standard de le faire, c'est dépendant de la plateforme. – GManNickG