From: cs3prj04 AT lion DOT cs DOT latrobe DOT edu DOT au (Cs3prj Group 04)
Newsgroups: comp.lang.c,comp.lang.c++,comp.os.msdos.djgpp
Subject: Bus error with g++ (in t_delete in call to malloc)
Date: 18 Sep 1996 14:30:46 GMT
Organization: Comp.Sci & Comp.Eng, La Trobe Uni, Australia
Lines: 68
Distribution: world
Message-ID: <51p12m$i9q@lion.cs.latrobe.edu.au>
NNTP-Posting-Host: lion.cs.latrobe.edu.au
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Can anyone suggest why the below file reading code causes a bus error in all
subsequent calls to malloc or new i.e. bus error in t_delete in call to 
malloc......

Also how the frick do you get seekg(...) to work. It would be nice if I
could do the equivalent of pascal reset(var file:text) rather than closing
the file and re-opening it. Unfortunately I can simply not get seekg to move
the file pointer back to the start of the file and I have tried many 
different ways e.g. seekg(0) and seekg(InFile.beg,0).

// The constructors.
ViewDialogBoxC::ViewDialogBoxC(const int X1,const int Y1,const int X2,
                               const int Y2,const char *Caption_,
                               WINDOW *Win_,const char *FileName):

DialogBoxC(X1,Y1,X2,Y2,Caption_,Win_),Instructions(),String()

{
  StringC Line;
  int Index;
  ifstream InFile(FileName);

  if ((!InFile) && (FileName!=""))
  {
    cout<<"ERROR : unable to open file '"<<FileName<<"'...\n\n";
    exit(1);
  }
  else if ((!InFile) && (FileName==""))
  {
    cout<<"ERROR : null file name...\n\n";
    exit(1);
  }
  else
  {
    NumberLines=0;
  
    do
    {
      InFile>>Line;
      if (!InFile.eof())
        NumberLines++;
    }
    while (!InFile.eof());

    InFile.close();

    InFile.open(FileName);
    NumberLines=100;

    Lines=new StringC[NumberLines];

    for (Index=0;Index<NumberLines;Index++)
      InFile>>Lines[Index];

    InFile.close();

    FirstLine=1;

    if (NumberLines>Height)
      LastLine=Height;
    else
      LastLine=NumberLines;

    StringPos=1;

    Instructions="Quit:Esc Type a string:alphanumeric search";
  }
}