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Useful assertion macros in C which include debug information like file, line number and error message.
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| // These require compiler support for statement expressions (https://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html) | |
| #define assert_ok(e) ({int x = (e); if (x < 0) { printf("%s:%d: ", __FILE__, __LINE__); fflush(stdout); perror(#e); abort(); } x;}) | |
| #define assert_ptr(e) ({void* p = (e); if (p == NULL) { printf("%s:%d: %s: NULL pointer returned\n", __FILE__, __LINE__, #e); abort(); } p;}) |
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