FIX: std::wofstream Can't Write to a File After DBCS Character Is Written to a File

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Article ID: 274012 - View products that this article applies to.
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No text appears after a double-byte character set (DBCS) character is written to a file.

For instance, in the following code snippet, the text " There" is not written to the STLout.txt file after the DBCS character 0x30F0 is written to a file.
#include <fstream>

void main()
  wchar_t ch = 0x30F0; /* DBCS Japanese test character. */ 
  std::wofstream wfout;
  wfout << L"Hello";
  wfout << ch;  /* Write the DBCS character to the output text file. */ 
  //wfout.clear(); /* Workaround: Call clear() after the DBCS output. */ 
  wfout << L" There\n";  /* This is not written to the output text file. */ 


To resolve this problem, obtain the latest Service Pack for Visual Studio 6.0. For additional information about Visual Studio service packs, click the article numbers below to view the articles in the Microsoft Knowledge Base:
194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why
194295 HOWTO: Tell That a Visual Studio Service Pack Is Installed
You can download the latest Visual Studio service pack from the following Microsoft Web site:


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Visual Studio 6.0 Service Pack 5.


Article ID: 274012 - Last Review: February 28, 2014 - Revision: 2.3
  • Microsoft Visual C++ 6.0 Enterprise Edition
  • Microsoft Visual C++ 6.0 Professional Edition
  • Microsoft Visual C++, 32-bit Learning Edition 6.0
kbnosurvey kbarchive kbbug kbfix kbqfe kbstl kbhotfixserver KB274012

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