_CrtSetBreakAlloc() not breaking

The problem is deterministic as each time it is the same Alloc id(147), with the same size (8 bytes, which leads me to wonder, what could i be allocating that is 8 bytes? a wchar_t maybe?).

Pointers are 8 bytes on a 64 bit system. :)

I don't know why you'd dynamically allocate the pointer variable itself though, rather than the memory it points to, but that seems more likely than a single wchar_t.

Pointers are 8 bytes on a 64 bit system. :)

I don't know why you'd dynamically allocate the pointer variable itself though, rather than the memory it points to, but that seems more likely than a single wchar_t.

That was my initial thought(that they were pointers), but sizeof(int*) returned 4, so it threw me for a bit.

I have since found that since they are all created outside of main, they are allocated before the call to _CrtSetBreakAlloc() is executed, and this explains why there is no breakpoint in the debugger. This makes me think they are false positives, as they are global state objects. (I use them sparingly so i can quickly implement new ideas, which are then refactored so that the objects they require to function are passed in arguments in their constructors.)

However i still have no method to test this hypothesis.

If you want to get really filthy...


http://www.codeguru.com/cpp/misc/misc/applicationcontrol/article.php/c6945/Running-Code-Before-and-After-Main.htm


Just abuse the CRT init segment to run a function that sets up leak checking before static initializers/main runs. I think this is still subject to the initialization order fiasco so you probably will get flaky ordering behavior, but it's a thing you could try.