xref: /freebsd/lib/libc/string/wmemchr.3 (revision 69d5783ae81b74295118950d01b6dddb3e504a56)

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.Dd March 21, 2024
.Dt WMEMCHR 3
.Os
.Sh NAME
.Nm wmemchr ,
.Nm wmemcmp ,
.Nm wmemcpy ,
.Nm wmemmove ,
.Nm wmempcpy ,
.Nm wmemset ,
.Nm wcpcpy ,
.Nm wcpncpy ,
.Nm wcscasecmp ,
.Nm wcscat ,
.Nm wcschr ,
.Nm wcscmp ,
.Nm wcscpy ,
.Nm wcscspn ,
.Nm wcsdup ,
.Nm wcslcat ,
.Nm wcslcpy ,
.Nm wcslen ,
.Nm wcsncasecmp ,
.Nm wcsncat ,
.Nm wcsncmp ,
.Nm wcsncpy ,
.Nm wcsnlen ,
.Nm wcspbrk ,
.Nm wcsrchr ,
.Nm wcsspn ,
.Nm wcsstr
.Nd wide character string manipulation operations
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In wchar.h
.Ft wchar_t *
.Fn wmemchr "const wchar_t *s" "wchar_t c" "size_t n"
.Ft int
.Fn wmemcmp "const wchar_t *s1" "const wchar_t *s2" "size_t n"
.Ft wchar_t *
.Fn wmemcpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
.Ft wchar_t *
.Fn wmemmove "wchar_t *s1" "const wchar_t *s2" "size_t n"
.Ft wchar_t *
.Fn wmempcpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
.Ft wchar_t *
.Fn wmemset "wchar_t *s" "wchar_t c" "size_t n"
.Ft wchar_t *
.Fn wcpcpy "wchar_t * restrict s1" "const wchar_t * restrict s2"
.Ft wchar_t *
.Fn wcpncpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
.Ft int
.Fn wcscasecmp "const wchar_t *s1" "const wchar_t *s2"
.Ft wchar_t *
.Fn wcscat "wchar_t * restrict s1" "const wchar_t * restrict s2"
.Ft wchar_t *
.Fn wcschr "const wchar_t *s" "wchar_t c"
.Ft int
.Fn wcscmp "const wchar_t *s1" "const wchar_t *s2"
.Ft wchar_t *
.Fn wcscpy "wchar_t * restrict s1" "const wchar_t * restrict s2"
.Ft size_t
.Fn wcscspn "const wchar_t *s1" "const wchar_t *s2"
.Ft wchar_t *
.Fn wcsdup "const wchar_t *s"
.Ft size_t
.Fn wcslcat "wchar_t *s1" "const wchar_t *s2" "size_t n"
.Ft size_t
.Fn wcslcpy "wchar_t *s1" "const wchar_t *s2" "size_t n"
.Ft size_t
.Fn wcslen "const wchar_t *s"
.Ft int
.Fn wcsncasecmp "const wchar_t *s1" "const wchar_t *s2" "size_t n"
.Ft wchar_t *
.Fn wcsncat "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
.Ft int
.Fn wcsncmp "const wchar_t *s1" "const wchar_t * s2" "size_t n"
.Ft wchar_t *
.Fn wcsncpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
.Ft size_t
.Fn wcsnlen "const wchar_t *s" "size_t maxlen"
.Ft wchar_t *
.Fn wcspbrk "const wchar_t *s1" "const wchar_t *s2"
.Ft wchar_t *
.Fn wcsrchr "const wchar_t *s" "wchar_t c"
.Ft size_t
.Fn wcsspn "const wchar_t *s1" "const wchar_t *s2"
.Ft wchar_t *
.Fn wcsstr "const wchar_t * restrict s1" "const wchar_t * restrict s2"
.Sh 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
.Xr memchr 3 .
.Sh SEE ALSO
.Xr memchr 3 ,
.Xr memcmp 3 ,
.Xr memcpy 3 ,
.Xr memmove 3 ,
.Xr memset 3 ,
.Xr stpcpy 3 ,
.Xr stpncpy 3 ,
.Xr strcasecmp 3 ,
.Xr strcat 3 ,
.Xr strchr 3 ,
.Xr strcmp 3 ,
.Xr strcpy 3 ,
.Xr strcspn 3 ,
.Xr strdup 3 ,
.Xr strlcat 3 ,
.Xr strlcpy 3 ,
.Xr strlen 3 ,
.Xr strncat 3 ,
.Xr strncmp 3 ,
.Xr strncpy 3 ,
.Xr strnlen 3 ,
.Xr strpbrk 3 ,
.Xr strrchr 3 ,
.Xr strspn 3 ,
.Xr strstr 3
.Sh STANDARDS
These functions conform to
.St -isoC-99 ,
with the exception of
.Fn wcpcpy ,
.Fn wcpncpy ,
.Fn wcscasecmp ,
.Fn wcsdup ,
.Fn wcsncasecmp ,
and
.Fn wcsnlen ,
which conform to
.St -p1003.1-2008 ;
and
.Fn wcslcat ,
.Fn wcslcpy ,
and
.Fn wmempcpy ,
which are extensions.