I can't allocate more than 16 bytes

[jonnyt]

I just recently installed Visual Studio .NET and I am trying to run a program that worked fine before...

I cannot allocate more than 16 bytes on the heap.

If I go:

new int[5] I get a nomem exception, but

new int[4] works.

However

new int[4] ... new int[1] throws an exception.

This is the first memory I allocate. If I try to allocate more than 16 bytes on the heap at all I run out of memory. However I have 128MB on my system, and I had no trouble allocating before I install VC++ 7. Plus, I can allocate as much space as I want on the stack, with not problem.

I am at my wits end. I cannot find any reason for this problem to occur. I hope someone will have some knowledge?

-Jonny T

[Bengi]

try Malloc, or HeapAlloc() or GlobalAlloc()
if those also fails, than your system is low on memory, although nowdays windows uses Vmemory with swap..so..i can't tell much of the prob.

[jonnyt]

I figured out the problem. After many painful hours, I found the error in some code I had long ago decided was correct.

Basically I was overunning an array during static initialization. In VC++ 6 this had overwritten harmless memory (it seems), but in VC++ 7 it must have corrupted the heap manager. So, when I tried to allocate, even as the first line of my main function it failed. Weird.

It took me forever to find, since this code was compiled into a library long ago and seemed to have worked up till now.