NAME
string —
string specific functions
LIBRARY
library “libc”
SYNOPSIS
#include
<string.h>
char *
stpcpy(char
*dst, const char
*src);
char *
stpncpy(char
*dst, const char
*src, size_t
count);
char *
strcat(char
*s, const char *
append);
size_t
strlcat(char
*dst, const char
*src, size_t
size);
char *
strncat(char
*s, const char
*append, size_t
count);
char *
strchr(const
char *s, int
c);
char *
strrchr(const
char *s, int
c);
int
strcmp(const
char *s1, const char
*s2);
int
strncmp(const
char *s1, const char
*s2, size_t
count);
int
strcasecmp(const
char *s1, const char
*s2);
int
strncasecmp(const
char *s1, const char
*s2, size_t
count);
int
strcoll(const
char *s1, const char
*s2);
char *
strcpy(char
*dst, const char
*src);
size_t
strlcpy(char
*dst, const char
*src, size_t
size);
char *
strncpy(char
*dst, const char
*src, size_t
count);
char *
strerror(int
errno);
int
strerror_r(int
errnum, char
*strerrbuf, size_t
buflen);
size_t
strlen(const
char *s);
size_t
strnlen(const
char *s, size_t
count);
char *
strpbrk(const
char *s, const char
*charset);
char *
strsep(char
**stringp, const char
*delim);
char *
stresep(char
**stringp, const char
*delim, int
escape);
size_t
strspn(const
char *s, const char
*charset);
size_t
strcspn(const
char *s, const char
*charset);
char *
strdup(const
char *str);
char *
strndup(const
char *str, size_t
len);
char *
strstr(const
char *big, const char
*little);
char *
strcasestr(const
char *big, const char
*little);
char *
strtok(char
*s, const char
*delim);
char *
strtok_r(char
*s, const char
*delim, char
**lasts);
size_t
strxfrm(char
*dst, const char
*src, size_t
n);
DESCRIPTION
The string functions manipulate strings terminated by a nul byte.See the specific manual pages for more information. For manipulating variable length generic objects as byte strings (without the nul 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), strcat(3), strchr(3), strcmp(3), strcoll(3), strcpy(3), strcspn(3), strdup(3), strerror(3), strings(3), strlcat(3), strlen(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3), strxfrm(3)
STANDARDS
The strcat(),
strncat(), strchr(),
strrchr(), strcmp(),
strncmp(), strcpy(),
strncpy(), strcoll(),
strerror(), strlen(),
strpbrk(), strsep(),
strspn(), strcspn(),
strstr(), strtok(), and
strxfrm() functions conform to ANSI
X3.159-1989 (“ANSI C89”).
The strtok_r() function conforms to
IEEE Std 1003.1c-1995
(“POSIX.1c”).
The strerror_r() function conforms to
IEEE Std 1003.1-2001 (“POSIX.1”).