fn wmemcmp(a: [*]const wchar_t, b: [*]const wchar_t, len: usize) callconv(.c) c_int
fn wmemcmp(a: [*]const wchar_t, b: [*]const wchar_t, len: usize) callconv(.c) c_int { return switch (std.mem.order(wchar_t, a[0..len], b[0..len])) { .eq => 0, .gt => 1, .lt => -1, }; }