Slide 32 of 42

Debugging Your Application - 2

• perror() continued:

if ( functionX(argv[1]) < 0)
{
    /* errno already set by functionX() */
#if defined(DEBUG) || defined(PRINT_ERROR)
    sprintf(msg, "functionY(): functionX(%s)", argv[1]);
    perror(msg);
#endif
    return -1;
}