wcsrchr
From cppreference.com
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Defined in header
<wchar.h>
|
||
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wchar_t
*
wcsrchr
(
const
wchar_t
*
str,
wchar_t
ch
)
;
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(1) | (since C95) |
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/*QWchar_t*/
*
wcsrchr
(
/*QWchar_t*/
*
str,
wchar_t
ch
)
;
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(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
Parameters
| str | - | pointer to the null-terminated wide string to be analyzed |
| ch | - | wide character to search for |
Return value
Pointer to the found character in str , or a null pointer if no such character is found.
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
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)
See also
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(C95)
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finds the first occurrence of a wide character in a wide string
(function) |
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(C95)
|
finds the first location of any wide character in one wide string, in another wide string
(function) |
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C++ documentation
for
wcsrchr
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