6 #define RAND_MAX 2147483647
8 #define abs(x) __builtin_abs(x)
10 int atoi(const char *str);
11 long atol(const char *str);
12 long strtol(const char *str, char **endp, int base);
14 void itoa(int val, char *buf, int base);
15 void utoa(unsigned int val, char *buf, int base);
17 double atof(const char *str);
18 double strtod(const char *str, char **endp);
20 void exit(int x) __attribute__((noreturn)); /* defined in startup.s */
23 void qsort(void *arr, size_t count, size_t size, int (*cmp)(const void*, const void*));
26 int rand_r(unsigned int *seedp);
27 void srand(unsigned int seed);
29 #endif /* STDLIB_H_ */