pub unsafe extern "C" fn CSTL_wstring_find(
instance: CSTL_WideStringCRef,
ptr: *const wchar_t,
off: usize,
) -> usizeExpand description
Find the first from offset off substring equal to the null-terminated string ptr
and return its position from the start of the string.
If no match is found CSTL_string_npos is returned.