FIX: std::wofstream Can't Write to a File After DBCS Character Is Written to a File (274012)



The information in this article applies to:

  • Microsoft Visual C++, 32-bit Enterprise Edition 6.0
  • Microsoft Visual C++, 32-bit Professional Edition 6.0
  • Microsoft Visual C++, 32-bit Learning Edition 6.0

This article was previously published under Q274012

SYMPTOMS

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.imbue(std::locale("Japanese"));
  wfout.open("STLout.txt");
  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. */ 
}
				

RESOLUTION

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:

STATUS

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.

Modification Type:MinorLast Reviewed:12/12/2005
Keywords:kbHotfixServer kbQFE kbbug kbfix kbQFE kbSTL KB274012