Question

I am trying to read a UTF-8 text file in Visual C++ 2010 using only the standard library and not Boost or Windows APIs. I define the locale as:

std::locale utf8_locale(std::locale(), new std::codecvt_utf8<wchar_t>);

but this results in the following compiler error:

error C2661: 'std::locale::facet::operator new' : no overloaded function takes 3 arguments
error C2664: 'std::locale::locale(const char *,std::locale::category)' : cannot convert parameter 1 from 'std::locale' to 'const char *'

Answer 1

The error is occures in debug mode when the code is used in the file that micrsoft Visual c++ provided below macro is placed.

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

to get rid of this error the #define new DEBUG_NEW should be commented out or the code should be implemented in another file which does not have the above macro.
This bug for Visual c++ 2010 is mentioned here http://connect.microsoft.com/VisualStudio/feedback/details/683483/mfc-c-fails-to-compile-use-of-codecvt-utf8-in-debug-configuration