osx man page for string

STRING(3)						   BSD Library Functions Manual 						 STRING(3)

NAME
     index, rindex, stpcpy, strcasecmp, strcat, strchr, strcmp, strcpy, strcspn, strerror, strlen, strncasecmp, strncat, strncmp, strncpy,
     strpbrk, strrchr, strsep, strspn, strstr, strtok -- string specific functions

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <strings.h>

     char *
     index(const char *s, int c);

     char *
     rindex(const char *s, int c);

     int
     strcasecmp(const char *s1, const char *s2);

     int
     strncasecmp(const char *s1, const char *s2, size_t n);

     #include <string.h>

     char *
     stpcpy(char *dst, const char *src);

     char *
     strcat(char *restrict s1, const char *restrict s2);

     char *
     strchr(const char *s, int c);

     int
     strcmp(const char *s1, const char *s2);

     char *
     strcpy(char *restrict s1, const char *restrict s2);

     size_t
     strcspn(const char *s1, const char *s2);

     char *
     strerror(int errnum);

     size_t
     strlen(const char *s);

     char *
     strncat(char *restrict s1, const char *restrict s2, size_t n);

     int
     strncmp(const char *s1, const char *s2, size_t n);

     char *
     strncpy(char *restrict s1, const char *restrict s2, size_t n);

     char *
     strpbrk(const char *s1, const char *s2);

     char *
     strrchr(const char *s, int c);

     char *
     strsep(char **stringp, const char *delim);

     size_t
     strspn(const char *s1, const char *s2);

     char *
     strstr(const char *s1, const char *s2);

     char *
     strtok(char *restrict s1, const char *restrict s2);

DESCRIPTION
     The string functions manipulate strings that are terminated by a null byte.

     See the specific manual pages for more information.  For manipulating variable length generic objects as byte strings (without the null byte
     check), see bstring(3).

     Except as noted in their specific manual pages, the string functions do not test the destination for size limitations.

SEE ALSO
     bstring(3), index(3), rindex(3), stpcpy(3), strcasecmp(3), strcat(3), strchr(3), strcmp(3), strcpy(3), strcspn(3), strerror(3), strlen(3),
     strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3)

STANDARDS
     The strcat(), strncat(), strchr(), strrchr(), strcmp(), strncmp(), strcpy(), strncpy(), strerror(), strlen(), strpbrk(), strspn(), strcspn(),
     strstr(), and strtok() functions conform to ISO/IEC 9899:1990 (``ISO C90'').

BSD
								 December 11, 1993							       BSD