#pragma once #include long strtol(const char *restrict s, char **restrict end, int base); double strtod(const char *restrict s, char **restrict end); char *strchr(const char *s, int c); size_t strspn(const char *s, const char *accept); size_t strcspn(const char *s, const char *reject); char *strpbrk(const char *s1, const char *s2); char *strtok(char *restrict s, const char *restrict sep); char *strtok_r(char *restrict s, const char *restrict sep, char **restrict state); int strncmp(const char *s1, const char *s2, size_t n); int strcoll(const char *s1, const char *s2); char *strstr(const char *s1, const char *s2); char *strcpy(char *restrict s1, const char *restrict s2); char *strerror(int errnum);