Function WideToUtf8

src/OSTPlatform/Encoding.cpp:20–40

} // namespace

std::string WideToUtf8(std::wstring_view value) {
    if (value.empty()) return {};
    if (!FitsWindowsInt(value.size(), "WideToUtf8")) return {};

    const int size = WideCharToMultiByte(CP_UTF8, 0, value.data(), static_cast<int>(value.size()),
                                         nullptr, 0, nullptr, nullptr);
    if (size <= 0) {
        OSTP_LOG_DEBUG("WideCharToMultiByte(size query) failed (error={})", GetLastError());
        return {};
    }

    std::string result(static_cast<size_t>(size), '\0');
    const int written = WideCharToMultiByte(CP_UTF8, 0, value.data(), static_cast<int>(value.size()),
                                            result.data(), size, nullptr, nullptr);
    if (written != size) {
        OSTP_LOG_DEBUG("WideCharToMultiByte(convert) failed (written={}, expected={}, error={})",
                       written, size, GetLastError());
        return {};
    }
    return result;
}

std::wstring Utf8ToWide(std::string_view value) {
    if (value.empty()) return {};