CODEWITHSUNDEEP
c++string
adam_0
adam_0

Reputation: 7220

Cleaner way to convert from CStringW to std::string?

I figured out a somewhat convoluted way to convert a CStringW to a std::string, but I was wondering if there's a cleaner way than:

CStringW cwstr;
std::wstring stdwstr = cwstr;
std::string stdstr = CW2T(stdwstr.c_str());

Upvotes: 2

Views: 3925

Answers (3)

Kirill V. Lyadvinsky
Kirill V. Lyadvinsky

Reputation: 99685

std::string has the following constructor:

template<class InputIterator> string (InputIterator begin, InputIterator end);

So you could use it:

CStringW cwstr;
std::string x( &cwstr.GetString()[0], &cwstr.GetString()[cwstr.GetLength()] );

Implicit convertion wchar_t to char will take place.

Upvotes: 1

Goz
Goz

Reputation: 62333

std::string str = CStringA( cwstr );

Job done.

Upvotes: 4

Nick Meyer
Nick Meyer

Reputation: 40392

You can cut out the intermediate std::wstring:

CStringW cwstr;
std::string stdstr = CW2A(cwstr);

Also note that you want the CW2A macro for correctness. CW2T converts to a TCHAR string, so the code you posted would only compile for an ANSI build (where TCHAR is char).

Upvotes: 6

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