overloading new , new[] , delete, delete[]

[sagarmd30]

Hi all,

i want overload the new,new[],delete and delete[] completely in my project.

project has lot of classes. now it is very difficult overload for each class.

is there any way to overload new , new[], delete and delete[] for project

completely.

Thanks

[Cubbi]

operator new, operator new[], operator delete, and operator delete[] are special functions which can be replaced (not overloaded) by user-provided functions with matching signatures. Just write them and the C++-supplied new/delete will disappear in any translation unit where your declarations are visible.

[Catfish]

Take heed at what Cubbi said.

The functions look like this:

void* operator new(size_t num)          // new
void operator delete(void *ptr)         // delete
void operator delete[](void *ptr)       // delete[] 

http://www.cyberplusindia.com/blog/index.php/2008/10/18/overloading-new-and-delete-operators-in-c/

Edit: fix + link.

[sagarmd30]

we have one problem here..

if i define these functions globally , all the linked library will use this overloaded function..i dont what this behavior.. only my library should use this overloaded function , not library which linked to my library.

[LB]

It's scope dependent, and you cannot affect libaries that are already compiled.