*** glibc detected *** ./PROGRAM_NAME: free(): invalid pointer: ADDRESS ***
- produced with GCC 4.4.3?
- May also produce a "segmentation fault" error
- May cause program execution to break well before the true faulty area of code
- Check for function declarations and definitions that do not match
- Check for missing or invalid return types in function definitions
// function declaration below has no return type in its' definition foo checkfoo(); // instead it should be void checkfoo();