#define ASSERT(x, y) assert(x, y, #y)

void assert(int expected, int actual, char *code);
int printf(char *fmt, ...);
int sprintf(char *buf, char *fmt, ...);
int vsprintf(char *buf, char *fmt, void *ap);
int strcmp(char *p, char *q);
int strncmp(char *p, char *q, long n);
int memcmp(char *p, char *q, long n);
void exit(int n);
int vsprintf();
long strlen(char *s);