wostream.cpp

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#include <iostream>   // for wcout, wostream, endl
#include <sstream>    // for wistringstream
 
#include <examples.h>
 
 
int main ()
{
    const double f = 3.1415926;
 
    const wchar_t s[] = { 'K', 'e', 'n', 'a', 'v', 'o', ' ', '!', '\0' };
 
    // create a read/write stringbuf object on wide char
    // and attach it to an wistringstream object
    std::wistringstream in (std::wios::in | std::wios::out);
      
    // tie the wostream object to the wistringstream object
    std::wostream out (in.rdbuf ());
 
    out << L"test beginning !" << std::endl;
    out.setf (std::wios::fixed, std::wios::floatfield);
 
    // output f in fixed format
    out << f << std::endl; 
 
    // store the current put-pointer position  
    std::wostream::pos_type pos = out.tellp ();
 
    // output s 
    out << s << std::endl;
 
    // output the all buffer to standard output
    std::wcout << in.rdbuf () << std::endl;
 
    // position the get-pointer
    in.seekg (pos);
 
    // output s
    std::wcout << in.rdbuf () << std::endl;         
 
    return 0;
}