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From: yang1@ntvax.UUCP (cqyang class)
Newsgroups: comp.lang.c++
Subject: Bug in AT&T C++ compilier ?
Keywords: C++, tasking, bugs
Message-ID: <416@ntvax.UUCP>
Date: 29 Mar 89 19:07:13 GMT
Organization: University of North Texas
Lines: 56



Is this a bug or what?
I am having a problem with the AT&T C++ compilier using its tasking
facility. I am writting a program that implements various algorithms
of the n-queens problem, and am using the tasking facility to create
a number 'taks'. There seems to be a problem that when the tasks complete,
there is still somethinf left over on the stack. The following is a 
program that may help figure out what the compilier's (or my) problem
is. This program should loop forever, but abends after some 48,800
times. It says there has been a stack overflow and dumps some 6.2
megabytes of core. Am I doing something wrong ?

#include <stdio.h>
#include <task.h>

#define  QUEENS 8
#define  QUEENS_M_1 (QUEENS - 1)

   
class Player : task 
{ private :
  static int ply_taks;
  public :
  Player(int Row, int Col);
  char players_piece;
  t_inc() { return(++ply_taks); }
};


Player::Player(int Row, int Col)
{ register int i, j;

  if(Col) Col++;

  resultis(0);
}

main()
{ Player *Aplayer;
  int i, j;

  printf("\nmain: start the players running\n");
  for(i=0;;i++) {
	printf("%d\n", i);
	Aplayer = new Player(i,i);
        j = Aplayer->Player::result(); }

  exit(0);
}

***************************************************************************
*       Jim Stinson             yang1@dept.csci.unt.edu                   *
*       University of                                                     *
*       North Texas                                                       *
***************************************************************************