From: "Andy Kilner" <andy AT kilner DOT karoo DOT co DOT uk>
Newsgroups: comp.os.msdos.djgpp
Subject: Sigabort and Sigseg errors with new operator
Date: Mon, 5 Jul 1999 01:42:22 +0100
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

I have been getting various errors from the following code mainly at the
line (n = new char[l];), with the code as it is below the error is SIGABRT
when run in RHIDE and a GPF in Windows.

char* b[bytes_used];
unsigned int p[bytes_used];
int s[bytes_used];

//
// other statements
// assigns values to various arrays
//

int l, c = bytes_used;
char* n;

do{
  sort(p, b, c);
  p[c-2] += p[c-1];
  s[c-2] += s[c-1];
  l = s[c-2] + 1;

  n = new char[l];

  strcpy(n, b[c-2]);
  strcat(n, b[c-1]);

  delete[] b[c-2];
  delete[] b[c-1];

  b[c-2] = n;
  c--;
}while(c > 1);

delete[] b[0];
delete[] b[1];

I've tried different combinations of delete[] but that makes no difference,
the error occurs in malloc but I must be writing to unassigned memory myself
but I can't see where. The error normally occurs after the 5 iteration of
about 75 total.

I would be grateful for any help
AK.

PS. I tried using Yamd but couldn't get it to work unfortunately.