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Date: Wed, 14 May 2003 18:06:00 -0000
From: lgang@yahoo.com
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Subject: c++/10790: g++/gcc
X-SW-Source: 2003-05/txt/msg01674.txt.bz2
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>Number:         10790
>Category:       c++
>Synopsis:       g++/gcc
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed May 14 18:06:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     lgang@yahoo.com
>Release:        G++ 3.2
>Organization:
>Environment:
Solaris 8
>Description:
Should a non-constant array be allowed in C/C++? I guess not.  See the following code.

int main()
{
  int c;
  scanf("%d", &c);
  int arr[c];
  int p;
  char arr2[c];
  int another;
  printf ("Terrible, diff=%d, diff=%d\n",
			 (char*)&c-(char*)&p, (char*)&p - (char*)&another);
  return 0;
}

Seems that compiler treats it int arr[c] as int *arr.  I don't think it should compile.

Thanks
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: