xref: /freebsd/lib/libc/string/wmemchr.3 (revision c1d255d3ffdbe447de3ab875bf4e7d7accc5bfc5)
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38.Dd July 14, 2021
39.Dt WMEMCHR 3
40.Os
41.Sh NAME
42.Nm wmemchr ,
43.Nm wmemcmp ,
44.Nm wmemcpy ,
45.Nm wmemmove ,
46.Nm wmempcpy ,
47.Nm wmemset ,
48.Nm wcpcpy ,
49.Nm wcpncpy ,
50.Nm wcscasecmp ,
51.Nm wcscat ,
52.Nm wcschr ,
53.Nm wcscmp ,
54.Nm wcscpy ,
55.Nm wcscspn ,
56.Nm wcsdup ,
57.Nm wcslcat ,
58.Nm wcslcpy ,
59.Nm wcslen ,
60.Nm wcsncasecmp ,
61.Nm wcsncat ,
62.Nm wcsncmp ,
63.Nm wcsncpy ,
64.Nm wcsnlen ,
65.Nm wcspbrk ,
66.Nm wcsrchr ,
67.Nm wcsspn ,
68.Nm wcsstr
69.Nd wide character string manipulation operations
70.Sh LIBRARY
71.Lb libc
72.Sh SYNOPSIS
73.In wchar.h
74.Ft wchar_t *
75.Fn wmemchr "const wchar_t *s" "wchar_t c" "size_t n"
76.Ft int
77.Fn wmemcmp "const wchar_t *s1" "const wchar_t *s2" "size_t n"
78.Ft wchar_t *
79.Fn wmemcpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
80.Ft wchar_t *
81.Fn wmemmove "wchar_t *s1" "const wchar_t *s2" "size_t n"
82.Ft wchar_t *
83.Fn wmempcpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
84.Ft wchar_t *
85.Fn wmemset "wchar_t *s" "wchar_t c" "size_t n"
86.Ft wchar_t *
87.Fn wcpcpy "wchar_t *s1" "wchar_t *s2"
88.Ft wchar_t *
89.Fn wcpncpy "wchar_t *s1" "wchar_t *s2" "size_t n"
90.Ft int
91.Fn wcscasecmp "const wchar_t *s1" "const wchar_t *s2"
92.Ft wchar_t *
93.Fn wcscat "wchar_t * restrict s1" "const wchar_t * restrict s2"
94.Ft wchar_t *
95.Fn wcschr "const wchar_t *s" "wchar_t c"
96.Ft int
97.Fn wcscmp "const wchar_t *s1" "const wchar_t *s2"
98.Ft wchar_t *
99.Fn wcscpy "wchar_t * restrict s1" "const wchar_t * restrict s2"
100.Ft size_t
101.Fn wcscspn "const wchar_t *s1" "const wchar_t *s2"
102.Ft wchar_t *
103.Fn wcsdup "const wchar_t *s"
104.Ft size_t
105.Fn wcslcat "wchar_t *s1" "const wchar_t *s2" "size_t n"
106.Ft size_t
107.Fn wcslcpy "wchar_t *s1" "const wchar_t *s2" "size_t n"
108.Ft size_t
109.Fn wcslen "const wchar_t *s"
110.Ft int
111.Fn wcsncasecmp "const wchar_t *s1" "const wchar_t *s2" "size_t n"
112.Ft wchar_t *
113.Fn wcsncat "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
114.Ft int
115.Fn wcsncmp "const wchar_t *s1" "const wchar_t * s2" "size_t n"
116.Ft wchar_t *
117.Fn wcsncpy "wchar_t * restrict s1" "const wchar_t * restrict s2" "size_t n"
118.Ft size_t
119.Fn wcsnlen "const wchar_t *s" "size_t maxlen"
120.Ft wchar_t *
121.Fn wcspbrk "const wchar_t *s1" "const wchar_t *s2"
122.Ft wchar_t *
123.Fn wcsrchr "const wchar_t *s" "wchar_t c"
124.Ft size_t
125.Fn wcsspn "const wchar_t *s1" "const wchar_t *s2"
126.Ft wchar_t *
127.Fn wcsstr "const wchar_t * restrict s1" "const wchar_t * restrict s2"
128.Sh DESCRIPTION
129The functions implement string manipulation operations over wide character
130strings.
131For a detailed description, refer to documents for the respective single-byte
132counterpart, such as
133.Xr memchr 3 .
134.Sh SEE ALSO
135.Xr memchr 3 ,
136.Xr memcmp 3 ,
137.Xr memcpy 3 ,
138.Xr memmove 3 ,
139.Xr memset 3 ,
140.Xr stpcpy 3 ,
141.Xr stpncpy 3 ,
142.Xr strcasecmp 3 ,
143.Xr strcat 3 ,
144.Xr strchr 3 ,
145.Xr strcmp 3 ,
146.Xr strcpy 3 ,
147.Xr strcspn 3 ,
148.Xr strdup 3 ,
149.Xr strlcat 3 ,
150.Xr strlcpy 3 ,
151.Xr strlen 3 ,
152.Xr strncat 3 ,
153.Xr strncmp 3 ,
154.Xr strncpy 3 ,
155.Xr strnlen 3 ,
156.Xr strpbrk 3 ,
157.Xr strrchr 3 ,
158.Xr strspn 3 ,
159.Xr strstr 3
160.Sh STANDARDS
161These functions conform to
162.St -isoC-99 ,
163with the exception of
164.Fn wcpcpy ,
165.Fn wcpncpy ,
166.Fn wcscasecmp ,
167.Fn wcsdup ,
168.Fn wcsncasecmp ,
169and
170.Fn wcsnlen ,
171which conform to
172.St -p1003.1-2008 ;
173and
174.Fn wcslcat ,
175.Fn wcslcpy ,
176and
177.Fn wmempcpy ,
178which are extensions.
179