WMEMCHR(3)

NAME
wmemchr, wmemcmp, wmemcpy, wmemmove, wmempcpy, wmemset, wcscat, wcschr, wcscmp, wcscpy, wcscspn, wcslcat, wcslcpy, wcslen, wcsncat, wcsncmp, wcsncpy, wcsnlen, wcspbrk, wcsrchr, wcsspn, wcsstr, wcswcs - wide-character string manipulation operations

LIBRARY
libc

SYNOPSIS
#include <wchar.h>
wchar_t *
wmemchr(const wchar_t *s, wchar_t c, size_t n);
int
wmemcmp(const wchar_t *s1, const wchar_t *s2, size_t n);
wchar_t *
wmemcpy(wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);
wchar_t *
wmemmove(wchar_t *s1, const wchar_t *s2, size_t n);
wchar_t *
wmempcpy(wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);
wchar_t *
wmemset(wchar_t *s, wchar_t c, size_t n);
wchar_t *
wcscat(wchar_t * restrict s1, const wchar_t * restrict s2);
wchar_t *
wcschr(const wchar_t *s, wchar_t c);
int
wcscmp(const wchar_t *s1, const wchar_t *s2);
wchar_t *
wcscpy(wchar_t * restrict s1, const wchar_t * restrict s2);
size_t
wcscspn(const wchar_t *s1, const wchar_t *s2);
size_t
wcslcat(wchar_t *s1, const wchar_t *s2, size_t n);
size_t
wcslcpy(wchar_t *s1, const wchar_t *s2, size_t n);
size_t
wcslen(const wchar_t *s);
wchar_t *
wcsncat(wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);
int
wcsncmp(const wchar_t *s1, const wchar_t * s2, size_t n);
wchar_t *
wcsncpy(wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);
size_t
wcsnlen(const wchar_t *s, size_t maxlen);
wchar_t *
wcspbrk(const wchar_t *s1, const wchar_t *s2);
wchar_t *
wcsrchr(const wchar_t *s, wchar_t c);
size_t
wcsspn(const wchar_t *s1, const wchar_t *s2);
wchar_t *
wcsstr(const wchar_t *s1, const wchar_t *s2);
wchar_t *
wcswcs(const wchar_t *s1, const wchar_t *s2);

DESCRIPTION
These functions implement string manipulation operations over wide-character strings. For a detailed description, refer to the documents for the respective single-byte counterpart, such as memchr(3). The wcswcs() function is not a part of isoC and isoC-amd1, the wcsstr() function is strongly recommended to be used.

SEE ALSO
memchr(3), memcmp(3), memcpy(3), memmove(3), memset(3), stpcpy(3), stpncpy(3), strcasecmp(3), strcat(3), strchr(3), strcmp(3), strcpy(3), strcspn(3), strdup(3), strlcat(3), strlcpy(3), strlen(3), strncat(3), strncmp(3), strncpy(3), strnlen(3), strpbrk(3), strrchr(3), strspn(3), strstr(3)

STANDARDS
The wmemchr(), wmemcmp(), wmemcpy(), wmemmove(), wmemset(), wcscat(), wcschr(), wcscmp(), wcscpy(), wcscspn(), wcslen(), wcsncat(), wcsncmp(), wcsncpy(), wcspbrk(), wcsrchr(), wcsspn() and wcsstr() functions were first introduced in isoC-amd1 and conform to isoC-99. Part of them: wmemmove(), wcscat(), wcscpy(), wcsncat() and wcsncpy() were modified in isoC-99 and gained the restrict keyword in parameter list, this new version is present in NetBSD.

The wcswcs() function conforms to xpg4.2, it is recommended to use technically equivalent wcsstr() for maximum portability.

The wcsnlen() function conforms to p1003.1-2008.

The wcslcat() and wcslcpy() functions conform to p1003.1-2024.

The wmempcpy() function is a NetBSD extension.