wcsrchr
From cppreference.com
C
Concurrency support (C11)
Null-terminated wide strings
(C95)
(C95)
(C95)
(C95)
(C95)
(C95)
(C99)
(C95)(C99)
(C99)(C95)(C99)
(C95)(C11)
(C95)(C11)
(C95)
(C95)(C95)
(C95)(C95)
(C95)
Defined in header
<wchar.h>
wchar_t *wcsrchr( const wchar_t *str, wchar_t ch );
(1)
(since C95)
/*QWchar_t*/ *wcsrchr( /*QWchar_t*/ *str, wchar_t ch );
(2)
(since C23)
1) Finds the last occurrence of the wide character ch in the wide string pointed to by str.
2) Type-generic function equivalent to (1). Let
T be an unqualified wide character object type.
- If
stris of type const T*, the return type is const wchar_t*. - Otherwise, if
stris of type T*, the return type is wchar_t*. - Otherwise, the behavior is undefined.
- If
[edit] Parameters
str
-
pointer to the null-terminated wide string to be analyzed
ch
-
wide character to search for
[edit] Return value
Pointer to the found character in str, or a null pointer if no such character is found.
[edit] Example
Run this code
#include <locale.h> #include <stdio.h> #include <wchar.h> int main(void) { wchar_t arr[] = L"白猫 黒猫 кошки"; wchar_t *cat = wcsrchr(arr, L'猫'); wchar_t *dog = wcsrchr(arr, L'犬'); setlocale (LC_ALL, "en_US.utf8"); cat ? printf ("The character 猫 found at position %td\n", cat - arr) : puts ("The character 猫 not found"); dog ? printf ("The character 犬 found at position %td\n", dog - arr) : puts ("The character 犬 not found"); }
Output:
The character 猫 found at position 4 The character 犬 not found
[edit] References
- C23 standard (ISO/IEC 9899:2024):
- 7.31.4.6.4 The wcsrchr function (p: TBD)
- C17 standard (ISO/IEC 9899:2018):
- 7.29.4.5.4 The wcsrchr function (p: 318)
- C11 standard (ISO/IEC 9899:2011):
- 7.29.4.5.4 The wcsrchr function (p: 436)
- C99 standard (ISO/IEC 9899:1999):
- 7.24.4.5.4 The wcsrchr function (p: 382)
[edit] See also
(C95)
(function) [edit]
C++ documentation for wcsrchr