First Chance Exception

Question

Hello Everyone,

          Thanks for Stopping by.  I am getting followinf exceeption

first Chance Excepion at ------: Access Violation at 0XsomeMemory address

 

and Stack is at ntdll.dll!  the debugger is pointing to the value malloc.c at the following line

 

 

return HeapAlloc(_crtheap, 0, size ? size : 1);

 

the _ctrheap value is 0x001C0000 and size is 204.

 

the Function i am calling is user input driven. It works for first three but fails at the forth Call. The Input and all other parametes passed to the Function is the same at each and every call.

 

 

Any help would be a great.

 

Cheers,

Arun

Answer 1

This could easily be a heap corruption, possibly caused by an overflow. Have you got the source of the function in question, and could you possibly paste it here?

Answer 2

 

I found out the bug in the code. Its actually a Haep Corruption. Its a overflow. Thanks for the reply einoras.

 

Cheers

Arun