wcsrchr

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 a macro definition of each of these generic functions is suppressed to access an actual function (e.g. if (wcsrchr) or a function pointer is used), the actual function declaration (1) becomes visible.

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

#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

See also

wcschr
(C95)
 finds the first occurrence of a wide character in a wide string
(function)
wcspbrk
(C95)
 finds the first location of any wide character in one wide string, in another wide string
(function)
C++ documentation for wcsrchr

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