function
<cwchar>
wcsrchr
const wchar_t* wcsrchr (const wchar_t* ws, wchar_t wc); wchar_t* wcsrchr ( wchar_t* ws, wchar_t wc);
Locate last occurrence of character in wide string
Returns a pointer to the last occurrence of wc in the C wide string ws.
The terminating null wide character is considered part of the string. Therefore, it can also be located to retrieve a pointer to the end of a wide string.
This is the wide character equivalent of strrchr (<cstring>).
Parameters
- ws
- C wide string.
- wc
- Wide character to be located.
Return Value
A pointer to the last occurrence of wc in ws.
If wc is not found, the function returns a null pointer.
Portability
In C, this function is only declared as:
wchar_t * wcsrchr ( const wchar_t *, wchar_t );
instead of the two overloaded versions provided in C++.
Example
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| /* wcsrchr example */ #include <wchar.h> int main () { wchar_t wcs[] = L"This is a sample wide string"; wchar_t * pwc; pwc = wcsrchr (wcs,L's'); wprintf (L"Last occurence of L's' found at %d \n",pwc-wcs+1); return 0; }
|
Output:
Last occurrence of L's' found at 23 |
See also
- strrchr
- Locate last occurrence of character in string (function)
- wcschr
- Locate first occurrence of character in wide string (function)
- wmemchr
- Locate character in block of wide characters (function)
- wcspbrk
- Locate characters in wide string (function)