ref: e4fb950f7f36da741e55025fd564a31a37ee4b06
dir: /lib/c/include/assert.h/
void __assert(char *exp, char *file, long line); #undef assert #ifndef NDEBUG # define assert(exp) ((exp) ? (void) 0 : __assert(#exp, __FILE__, __LINE__)) #else # define assert(exp) ((void)0) #endif