error C2440: '<function-style-cast>' : cannot convert from 'const TCHAR *' to 'std::string'

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Bit Byte - 06 Mar 2007 09:50 GMT

Are there any macros for converting between these two string types ?

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David Wilkinson - 06 Mar 2007 12:14 GMT

> Are there any macros for converting between these two string types ?

Bit Byte:

Please don't put the whole question in the title.

Very likely you do not really want to make this conversion. You must
understand that in non-Unicode build TCHAR is CHAR (char) while in
Unicode build it is WCHAR (wchar_t). A good way to use the standard
library in Windows programs is

typedef std::basic_string<TCHAR> tstring;
TCHAR str[] = _T("Testing");
tstring s = str;

This will compile in either Unicode or non-Unicode build.

If your program really uses both 8-bit and 16-bit strings you should
look at W2A family of macros, or WideCharToMultiByte().

David Wilkinson

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