win32 UNICODE 支持

#include <string>

#ifdef _UNICODE

#define tstring std::wstring

#define __T(quote) L##quote

#else

#define tstring string

#define __T(quote) quote

#endif

#define _T(quote) __T(quote)   

#define _TEXT(quote) __T(quote) 

#define TEXT(quote) __T(quote)

                std::string T2A(const tstring& sInput)

                {

#ifdef _UNICODE

                                return std::string(sInput.begin(), sInput.end());

#else

                                return sInput;

#endif

                };

                tstring A2T(const std::string& sInput)

                {

#ifdef _UNICODE

                                return tstring(sInput.begin(), sInput.end());

#else

                                return sInput;

#endif

                };

int replace_all(tstring& str,  const tstring& pattern,  const tstring& newpat)

{

                int count = 0;

                const size_t nsize = newpat.size();

                const size_t psize = pattern.size();

                for(size_t pos = str.find(pattern, 0); 

                                pos != tstring::npos;

                                pos = str.find(pattern,pos + nsize))

                {

                                str.replace(pos, psize, newpat);

                                count++;

                }

                return count;

}