s, you're left with printf()
. Maybe your program takes 3 hour
s to get to its failure point when optimised
, and will never get there if you compile
with symbolic information
. Or maybe doing that moves data around, and a memory overflow
that was crashing your program
no longer does, so the debugger doesn't help.
Whatever the reason, you need printf(). Just remember to call it fprintf(stderr,...), so your log isn't on a buffered stream.