Converting 'TChar' to 'String' in C++

TCHAR is just a typedef that depending on your compilation configuration (whether you have #define'd UNICODE or not) defaults to char or wchar. Note that you don't necessarily need to #define UNICODE as part of your code. You may also pass it to your target compiler via some preprocessor definition argument, such as /D in microsoft's visual C++ compiler.

Standard Template Library on the other hand supports both ASCII (with std::string) and wide character sets (with std::wstring). All you need to do is to typedef String as either std::string or std::wstring depending on your compilation configuration, if flexibility is what you're aiming for. Something like this might prove useful:



Now you may use String in your code and let the compiler handle the nasty parts. String now has constructors that lets you convert TCHAR to std::string or std::wstring.

/EDIT: typo

[Edited by - Ashkan on November 27, 2006 1:59:38 PM]

What exactly are TChar and String? There's Win32 TCHAR which is either a char (ASCII) or wchar (Unicode) and there's std::string. There's also .Net's String (capitalised) which is different from other string types. Assuming you're not using .Net / managed code then the following is what you're after:

TCHAR *tchar_string = "a string";std:string string_string (tchar_string);

but that only works in an ASCII version (TCHAR == char), to use unicode (TCHAR == wchar):

TCHAR *tchar_string = "a string";std:wstring string_string (tchar_string);

Skizz

Quote:

Original post by Ashkan #ifndef UNICODE typedef std::string String #else typedef std::wstring String #endif

TCHAR already resolves to the correct type, why not use it?
typedef std::basic_string StringType;

[Edited by - raz0r on November 27, 2006 9:36:33 AM]

Hi

I am using .NET editor for the C++ coding.

Hope i may get some more solutions for the problem I posted

Quote:

I am using .NET editor for the C++ coding.

What do you mean by that? The compiler, the editor and the choice of IDE in general, has no effect on the language itself. If you're writing C++ code, the solutions are already posted.

Hi,

thanks for all who posted a solution for the problem. I followed your ideas and they were working fine.

Thanks again.