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Debugging a C program with "printf( )"

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• Another way to debug (my favorite): use printf( ) between #ifdef DEBUG .... #endif !!!
  • Hint:

    Insert printf( ) statements in strategic location in your program to print: Variables that can help you understand the execution of your program.

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  • After you have identified the crash location, you can add some printf() statements near the crash site and print the relevant variables

    Example:

    #ifdef DEBUG printf("x = %d\n", x); printf("y = %d\n", y); #endif

    Compile your C program with:

    gcc -DDEBUG= ...

    to enable/include the debug printf( ) statements