pollution: memcmp extern int memcmp(const void *, const void *, size_t); pollution: memcpy extern void *memcpy(void *restrict, const void *restrict, size_t); pollution: memmove extern void *memmove(void *, const void *, size_t); pollution: memset extern void *memset(void *, int, size_t); pollution: strcat extern char *strcat(char *restrict, const char *restrict); pollution: strcmp extern int strcmp(const char *, const char *); pollution: strcpy extern char *strcpy(char *restrict, const char *restrict); pollution: strcoll extern int strcoll(const char *, const char *); pollution: strcspn extern size_t strcspn(const char *, const char *); pollution: strerror extern char *strerror(int); pollution: strlen extern size_t strlen(const char *); pollution: strncat extern char *strncat(char *restrict, const char *restrict, size_t); pollution: strncmp extern int strncmp(const char *, const char *, size_t); pollution: strncpy extern char *strncpy(char *restrict, const char *restrict, size_t); pollution: strspn extern size_t strspn(const char *, const char *); pollution: strtok extern char *strtok(char *restrict, const char *restrict); pollution: strxfrm extern size_t strxfrm(char *restrict, const char *restrict, size_t); pollution: memchr extern void *memchr(const void *, int, size_t); pollution: strchr extern char *strchr(const char *, int); pollution: strpbrk extern char *strpbrk(const char *, const char *); pollution: strrchr extern char *strrchr(const char *, int); pollution: strstr extern char *strstr(const char *, const char *); pollution: strtok_r extern char *strtok_r(char *restrict, const char *restrict, char **restrict); pollution: memccpy extern void *memccpy(void *restrict, const void *restrict, int, size_t); pollution: bcmp extern int bcmp(const void *, const void *, size_t); pollution: bcopy extern void bcopy(const void *, void *, size_t); pollution: bzero extern void bzero(void *, size_t); pollution: index extern char *index(const char *, int); pollution: rindex extern char *rindex(const char *, int); pollution: NULL #define NULL 0L