g++ bug

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2 total messages Started by Monika Mevenkamp Thu, 30 Jul 1992 10:24

#202

Author: Monika Mevenkamp
Date: Thu, 30 Jul 1992 10:24

52 lines
1291 bytes

I use what the man page calls 
"g++ - GNU project C++ Compiler (v2 preliminary)".

The program: 
------
	#include <assert.h> 
	#include <istream.h>
	#include <ostream.h>
	
	class Y {
	public: 
   	   Y(int i) { y = i; cout << "init " << this << ' ' << i << "\n"; }
   	   ~Y() { cout << "kill " << this << ' ' << y << "\n";}
	private: 
   	   int  y;
	} ;
	
	int
	main(int ac, char **av)
	{
   	   char c;
   	   Y y[5] = {Y(0), Y(1), Y(2), Y(3), Y(4) };
	
   	   cout << "hello \n"; 
   	   return 0;
	} 
------

produces this output:

------
init 0xf7fff9a0 0
init 0xf7fff9a4 1
init 0xf7fff9a8 2
init 0xf7fff9ac 3
init 0xf7fff9b0 4
hello 
kill 0xf7fff9b4 0
kill 0xf7fff9b4 0
kill 0xf7fff9b4 0
kill 0xf7fff9b4 0
kill 0xf7fff9b4 0
kill 0xf7fff9b0 4
kill 0xf7fff9ac 3
kill 0xf7fff9a8 2
kill 0xf7fff9a4 1
kill 0xf7fff9a0 0
------

Seems wrong to me,

Monika

Re: g++ bug

#233

Author: Raymond Nijssen
Date: Mon, 03 Aug 1992 09:48

38 lines
1653 bytes

In article <9207301824.AA16226@enthuse.bellcore.com> monika@enthuse.bellcore.com (Monika Mevenkamp) writes:

|   	#include <assert.h> 
|   	#include <istream.h>
|   	#include <ostream.h>
|   	
|   	class Y {
|   	public: 
|      	   Y(int i) { y = i; cout << "init " << this << ' ' << i << "\n"; }
|      	   ~Y() { cout << "kill " << this << ' ' << y << "\n";}
|   	private: 
|      	   int  y;
|	} ;
|   	
|   	int
|   	main(int ac, char **av)
|   	{
|      	   char c;
|      	   Y y[5] = {Y(0), Y(1), Y(2), Y(3), Y(4) };

With gcc 2.2.1 (on HP9k/7xx), appending a `&' after Y (which is wrong IMHO) 
yields the desired output.

|   	
|      	   cout << "hello \n"; 
|      	   return 0;
|	} 

Just my $0.02 ...

Regards,
-Raymond
--
| Raymond Nijssen         | Eindhoven University of Techology                 |
|                         | Department of Electrical Engineering              |
| phone: +31-40-473373    | Design Automation Section (ES),  Room EH 7.16     |
| raymond@es.ele.tue.nl   | P.O. Box 513, 5600 MB Eindhoven, The Netherlands  |
|                         | "Trust me. I know what I'm doing" (Sledge Hammer) |

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