Re: Fixing new for VC6- on project-local basis

=?Utf-8?B?dWx0cmFuZXQ=?= <>
Fri, 2 Jun 2006 13:39:02 -0700
"Tamas Demjen" wrote:

ultranet wrote:

void *__cdecl operator new(size_t size) throw()
    char *p = new char[size];
    if ( p == NULL) {
       // TODO: log it
       throw bad_alloc();
    return p;

Alex has answered your question, but I would like to point out that you
are throwing from a no-throw function, which will instantly terminate
your application. I think you want to remove the throw() specifier from
this version.

Right, it should throw. However, C++ standard allows throwing undeclared

#if _MSC_VER <= 1200

#include <new>

void *__cdecl operator new(size_t size) throw(std::bad_alloc)
    char *p = ::new char[size];
    if ( p == 0) {
       // TODO: log it
       throw std::bad_alloc();
    return p;

void *__cdecl operator new(size_t size, const std::nothrow_t&) throw()
    char *p;
        p = new char[size];
    catch (std::bad_alloc)
        p = 0;
       // TODO: log it
    return p;


But this doesn't work because of recursion. My strategy will be to declare
new_throw, and then a macro for new, which calls new_throw.

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