Difference between global non-throwing ::operator new and std::malloc

Question

C++ has several functions to acquire dynamic storage, most of which differ in some fundamental way. Several more are usually added by the OS.

Two of these are of spe

Answer 1

There are two differences I can think of:

1. Which function you must use to deallocate the memory, operator delete vs. free().

2. A C++ program can legally provide its own version of ::operator new and that version is guaranteed to be called by new expressions. It's not possible to override malloc with your own version.