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

• Which OS? For Unix, see ulimit -d/limit datasize depending on your shell (sh/csh).

• You can write a wrapper for malloc which returns an error in the circonstance you want. Depending on your OS, you may be able to substitute it for the implementation's one.