Re: [Boost-bugs] [Boost C++ Libraries] #6186: lexical_cast on vs2005 with wchar_t-

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6186: lexical_cast on vs2005 with wchar_t-
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-12-14 04:38:43

#6186: lexical_cast on vs2005 with wchar_t-
-------------------------------+--------------------------------------------
  Reporter:  anonymous         |       Owner:  apolukhin   
      Type:  Bugs              |      Status:  closed      
 Milestone:  To Be Determined  |   Component:  lexical_cast
   Version:  Boost 1.48.0      |    Severity:  Problem     
Resolution:  fixed             |    Keywords:              
-------------------------------+--------------------------------------------

Comment (by apolukhin):

 I made some more tests under VC with wchar_t- flag. Here is the test and
 output is shown in comments:
 {{{
 #include <iostream>
 #include <sstream>

 using namespace std;

 int main() {
         cout << L'A' << endl;   // 65
         wcout << L'A' << endl;  // A
         cout << L"A" << endl;   // 00147800
         wcout << L"A" << endl;  // A

         wchar_t w;
         stringstream ss;
         ss << 65;
         ss >> w;
         wcout << w << endl;     // A

         wstringstream wss;
         wss << 65;
         wss >> w;
         wcout << w << endl;     // 6

         return 0;
 }

 }}}
 Exactly the same output without wchar_t- flag (+ compilation error on line
 "ss >> w;").
 Behavior depends on stream type that we are using.[[BR]]
 [[BR]]
 I`ll think about lexical_cast default behavior, shall it be treated as
 char/wchar_t stream by default or shall it be something else. Current
 documentation does not reflect it. All the thoughts will be posted here
 and in documentation.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6186#comment:14>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.