Function ToLowerCopy

tests/test_support.cpp:179–182

}

std::wstring ToLowerCopy(std::wstring value) {
    std::transform(value.begin(), value.end(), value.begin(), [](wchar_t ch) { return towlower(ch); });
    return value;
}

bool ContainsInsensitive(const std::wstring &haystack, const std::wstring &needle) {
    return ToLowerCopy(haystack).find(ToLowerCopy(needle)) != std::wstring::npos;