source: azure_iot_hub/trunk/musl-1.1.18/src/string/wcsrchr.c@ 388

#include <wchar.h>

wchar_t *wcsrchr(const wchar_t *s, wchar_t c)
{
        const wchar_t *p;
        for (p=s+wcslen(s); p>=s && *p!=c; p--);
        return p>=s ? (wchar_t *)p : 0;
}