Does dynamic memory allocation differ in C and C++ in popular implementations?

Question

As far as the respective language standards go, C offers dynamic memory allocation only through the malloc() family, while in C++ the most common form of alloca

Answer 1

On Visual C++, stepping into a new expression leads me to this snippet in new.cpp:

#include 
#include 

_C_LIB_DECL
int __cdecl _callnewh(size_t size) _THROW1(_STD bad_alloc);
_END_C_LIB_DECL

void *__CRTDECL operator new(size_t size) _THROW1(_STD bad_alloc)
        {       // try to allocate size bytes
        void *p;
        while ((p = malloc(size)) == 0)
                if (_callnewh(size) == 0)
                {       // report no memory
                static const std::bad_alloc nomem;
                _RAISE(nomem);
                }

        return (p);
        }

So VC++'s new also wraps the malloc() call.