NAME
string —
string specific
functions
LIBRARY
Standard C Library (libc, -lc)
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”).