NAME
wmemchr, wmemcmp, wmemcpy, wmemmove, wmempcpy, wmemset, wcpcpy, wcpncpy, wcscasecmp, wcscat, wcschr, wcscmp, wcscpy, wcscspn, wcsdup, wcslcat, wcslcpy, wcslen, wcsncasecmp, wcsncat, wcsncmp, wcsncpy, wcsnlen, wcspbrk, wcsrchr, wcsspn, wcsstr – wide character string manipulation operations
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <wchar.h>
QWchar_t *
wmemchr(QWchar_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 *
wcpcpy(wchar_t * restrict s1, const wchar_t * restrict s2);
wchar_t *
wcpncpy(wchar_t * restrict s1, const wchar_t * restrict s2, size_t n);
int
wcscasecmp(const wchar_t *s1, const wchar_t *s2);
wchar_t *
wcscat(wchar_t * restrict s1, const wchar_t * restrict s2);
QWchar_t *
wcschr(QWchar_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);
wchar_t *
wcsdup(const wchar_t *s);
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);
int
wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n);
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);
QWchar_t *
wcspbrk(QWchar_t *s1, const wchar_t *s2);
QWchar_t *
wcsrchr(QWchar_t *s, wchar_t c);
size_t
wcsspn(const wchar_t *s1, const wchar_t *s2);
QWchar_t *
wcsstr(QWchar_t *s1, const wchar_t *s2);
DESCRIPTION
The functions implement string manipulation operations over wide character strings. For a detailed description, refer to documents for the respective single-byte counterpart, such as memchr(3).
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
Functions wmemcmp(), wmemcpy(), wmemmove(), wmemset(), wcscat(), wcscmp(), wcscpy(), wcscspn(), wcslen(), wcsncat(), wcsncmp(), wcsncpy(), and wcsspn() conform to ISO/IEC 9899:1999 (“ISO C99”).
Functions wmemchr(), wcschr(), wcspbrk(), wcsrchr(), and wcsstr() conform to ISO/IEC 9899:2024 (“ISO C23”), where they are specified as qualifier-preserving functions.
Functions wcpcpy(), wcpncpy(), wcscasecmp(), wcsdup(), wcsncasecmp(), and wcsnlen() conform to IEEE Std 1003.1-2008 (“POSIX.1”), and functions wcslcat() and wcslcpy(), first introduced by OpenBSD, conform to IEEE Std 1003.1-2024 (“POSIX.1”).
Function wmempcpy() is a GNU extensions.