How do I force a program to appear to run out of memory?

Question

I have a C/C++ program that might be hanging when it runs out of memory. We discovered this by running many copies at the same time. I want to debug the program without co

Answer 1

That depends on your platform. For example, this can be achieved programmatically on Unix-like platforms using setrlimit(RLIMIT_DATA, ...).

EDIT:

The RLIMIT_AS resource may also be useful in this case as well.