Function UTF8ToWCHAR

util/system/fs_win.cpp:12–21

namespace NFsPrivate {
    static LPCWSTR UTF8ToWCHAR(const TStringBuf str, TUtf16String& wstr) {
        wstr.resize(str.size());
        size_t written = 0;
        if (!UTF8ToWide(str.data(), str.size(), wstr.begin(), written)) {
            return nullptr;
        }
        wstr.erase(written);
        static_assert(sizeof(WCHAR) == sizeof(wchar16), "expect sizeof(WCHAR) == sizeof(wchar16)");
        return (const WCHAR*)wstr.data();
    }

    static TString WCHARToUTF8(const LPWSTR wstr, size_t len) {
        static_assert(sizeof(WCHAR) == sizeof(wchar16), "expect sizeof(WCHAR) == sizeof(wchar16)");