What is wrong in this source code? #include <iostream> #include <ostream> #include <fstream> void

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Asked: May 27, 20262026-05-27T17:12:11+00:00 2026-05-27T17:12:11+00:00

What is wrong in this source code? #include <iostream> #include <ostream> #include <fstream> void

0

What is wrong in this source code?

#include <iostream>
#include <ostream>
#include <fstream>

void printTest ( std::ostream * o )
{
    *o << "test" << std::endl;
}


int main ( int argc, char * argv[] )
{
  std::ostream * o = &std::cout;
  char ot[4096];
  strcpy ( ot, "test.txt" );
  strcat ( ot, ".log" );
  static std::ofstream of ( ot );
  printTest ( o );  //Print to console OK
  o = & of;
  printTest ( o );  //Print to file: CodeGuard stops the application with the error log
  return 0;
}

I tried to compile this source code under CBuilder 2010 (enabled CodeGuard). The application has been stopped by CodeGuard with the following error log:

25.12.2011 13:00:57 started a CodeGuard(tm) process: Project3.exe(2244)  
Bad parameter in process: Project3.exe(2244)  - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/fstream#55
A bad file or pipe stream (0x32AF36D4) has been passed to the function.
0x0040A150 Call to fputc(0x74 ['t'], 0x32AF36D4)
0x004098A5 - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/fstream#55
0x004081BE - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/fstream#246
0x00407E2B - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/streambuf#465
0x004020AD - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/streambuf#151
0x00401434 - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/ostream#683
0x00401276 - File3.cpp#13
Pointer arithmetic underrun in process: Project3.exe(2244)  - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/streambuf#207
0x00892501-512, that is at offset 1-512 in heap block 0x00892500 (size 512).
0x0040985E - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/streambuf#207
0x00408127 - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/fstream#237
0x00407E2B - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/streambuf#465
0x004020AD - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/streambuf#151
0x00401434 - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware/ostream#683
0x00401276 - File3.cpp#13
The memory block (0x008922F0) [size: 512 bytes] was allocated with calloc
0x32A9D14F
0x004057B7 - c:\program files\embarcadero\rad studio\7.0\include\dinkumware\xlocale#1289
0x00404DDA - c:\program files\embarcadero\rad studio\7.0\include\dinkumware\xlocale#1261
0x004041F1 - c:\program files\embarcadero\rad studio\7.0\include\dinkumware\xlocale#1268
0x00403395 - c:\program files\embarcadero\rad studio\7.0\include\dinkumware\xlocale#323
0x004022AB - c:\program files\embarcadero\rad studio\7.0\include\../include/dinkumware

Thanks for your help.

Updated question:

Unfortunately this is an older and reported bug:
http://www.borlandtalk.com/is-there-a-bug-in-codeguard–vt112810.html

Topic can be closed…