A tiny little macro to help debug your C code.
| // debugf.h | |
| // Charlton Trezevant - 2018 | |
| // MIT license | |
| /* USAGE: | |
| * To use this macro, simply paste it into your source file (you may also | |
| * include debugf.h if you have many source files). Doing this will define | |
| * the function debugf(), which acts as a thin wrapper around fprintf() with | |
| * a little added pizazz. | |
| * | |
| * When DEBUG is defined, any calls made to debugf() will behave in exactly the | |
| * same way as calls to printf() or fprintf() (because there's full support for variadic | |
| * arguments :). Output will be sent to stderr instead of stdout to ensure that any test | |
| * cases relying on stdout will pass if debugging is enabled. Additionally, a call is made | |
| * to fflush() after each line of debugging output, so crashes and segfaults wont cause | |
| * you to lose precious debugging insights to the ether. | |
| * | |
| * Enjoy! | |
| */ | |
| // Comment out the below to disable debug output. | |
| #define DEBUG | |
| #ifdef DEBUG | |
| #define debugf(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__); fflush(stderr) | |
| #else | |
| #define debugf(fmt, ...) ((void)0) | |
| #endif |
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