topic Re: Convert from GS::UniString to std::string in Archicad C++ API

Convert from GS::UniString to std::string

dushyant — Wed, 22 Sep 2021 13:52:16 GMT

How to convert from GS::UniString to std::string?

(I need to pass it to another API which takes std::string)

Thanks.

Re: Convert from GS::UniString to std::string

Viktor Kovacs — Wed, 22 Sep 2021 14:42:22 GMT

To convert between GS::UniString and std::wstring:

GS::UniString ToUniString (const std::wstring& str) { static_assert (sizeof (GS::UniChar::Layout) == sizeof (wchar_t), "string character size mismatch"); return GS::UniString ((const GS::UniChar::Layout*) str.c_str (), (GS::USize) str.size ()); } std::wstring ToWString (const GS::UniString& str) { static_assert (sizeof (GS::UniChar::Layout) == sizeof (wchar_t), "string character size mismatch"); return std::wstring ((const wchar_t*) str.ToUStr ().Get (), str.GetLength ()); }

To convert between std::string and std::wstring:

std::wstring StringToWString (const std::string& str) { std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t> convert; return std::wstring (convert.from_bytes (str)); } std::string WStringToString (const std::wstring& str) { std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t> convert; return std::string (convert.to_bytes (str)); }

Re: Convert from GS::UniString to std::string

dushyant — Wed, 22 Sep 2021 15:28:22 GMT

Hi Viktor,

Thanks for that info.

I found that simply doing: std::string myStdStr(myUniStr.ToCStr()) works.

Re: Convert from GS::UniString to std::string

drjustice — Mon, 27 Sep 2021 18:00:58 GMT

(removed because redundant suggestion)