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Re: egcs 1.1.1 does not allow bool values as null pointer constants


> Date: Thu, 18 Feb 1999 14:56:47 -0500 (EST)
> From: Andrew Koenig <ark@research.att.com>

> Here's a program:

>        void x()
>        {
> 	  int* p = 1==0;
>        }

> I would expect this to compile, but egcs complains that it can't
> convert `bool' to a pointer type.

Long time no see...  Hope things are going well with you...  Thanks
for the bug report, bool _is_ an integer type.  :-)

1999-02-18  Mike Stump  <mrs@wrs.com>

	* typeck.c (convert_for_assignment): Allow boolean integral constant
	expressions to convert to null pointer.

Doing diffs in cp/typeck.c.~1~:
*** cp/typeck.c.~1~	Tue Jan 26 11:54:55 1999
--- cp/typeck.c	Thu Feb 18 14:01:13 1999
*************** convert_for_assignment (type, rhs, errty
*** 6797,6803 ****
  	}
        return cp_convert (type, rhs);
      }
!   else if (codel == POINTER_TYPE && coder == INTEGER_TYPE)
      {
        /* An explicit constant 0 can convert to a pointer,
           but not a 0 that results from casting or folding.  */
--- 6797,6805 ----
  	}
        return cp_convert (type, rhs);
      }
!   else if (codel == POINTER_TYPE
! 	   && (coder == INTEGER_TYPE
! 	       || coder == BOOLEAN_TYPE))
      {
        /* An explicit constant 0 can convert to a pointer,
           but not a 0 that results from casting or folding.  */
--------------


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