> How the heck to I find out how much free memory I have in c? I am unaware of how to do this using standard 'C/C++' without simply allocating blocks (in smaller and smaller increments as the allocs fail) until nothing more can be allocated. This is probably not what you want. I think the answer you're looking for is in a function that reports the amount of RAM installed and/or available to your process - that would be a platform API (I know of no equivalent in the CRT or C++ Std Lib), so it is necessarily OS dependent. Regarding your original problem with optimization - I don't have a definitive answer (which would be difficult anyway, because part of the code is missing - this is not a "self-contained" example) but I do have a recommendation (based on some "hard won experience") : 1) turn up warnings and pay attention to any that are emitted for this section of code. 2) make sure you aren't comparing ints and unsigned ints I really hope this helps and/or it's something as simple for you as this! - Mike
