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#include <iostream> #include <string> using namespace std; const std::wstring s2ws(const std::string s) { std::locale old_loc = std::locale::global(std::locale("")); const char* src_str = s.c_str(); const size_t buffer_size = s.size() + 1; wchar_t* dst_wstr = new wchar_t[buffer_size]; wmemset(dst_wstr, 0, buffer_size); mbstowcs(dst_wstr, src_str, buffer_size); std::wstring result = dst_wstr; delete []dst_wstr; std::locale::global(old_loc); return result; } const std::string ws2s(const std::wstring ws) { std::locale old_loc = std::locale::global(std::locale("")); const wchar_t* src_wstr = ws.c_str(); size_t buffer_size = ws.size() * 4 + 1; char* dst_str = new char[buffer_size]; memset(dst_str, 0, buffer_size); wcstombs(dst_str ,src_wstr, buffer_size); std::string result = dst_str; delete []dst_str; std::locale::global(old_loc); return result; } int main() { wstring wstr; string str; cin>>str; wstr=s2ws(str); wcout<<wstr<<endl; cout<<"str : "<<str.size()<<endl; cout<<"wstr : "<<wstr.size()<<endl; string str2; str2=ws2s(wstr); return 0; } |
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