GCC: program doesn't work with compilation option -O3

Question

I\'m writing a C++ program that doesn\'t work (I get a segmentation fault) when I compile it with optimizations (options -O1, -O2, -O3, etc.), but it works just fine when I

Answer 1

post the code in distance! it probably does some pointer magic, see my previous post. doing an intermediate assignment just hides the bug in your code by changing register allocation. even more telling of this is the output changing things!