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* [Bug libstdc++/11126] New: Error in valarray::operator =
@ 2003-06-08 15:36 lupoderi@tiscali.it
  2003-06-08 15:38 ` [Bug libstdc++/11126] " lupoderi@tiscali.it
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: lupoderi@tiscali.it @ 2003-06-08 15:36 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126

           Summary: Error in valarray::operator =
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: lupoderi@tiscali.it
                CC: gcc-bugs@gcc.gnu.org

The valarrat::operator=() doesn't change the size of right side operand.
For example, the following code fails the assert:

#include <iostream>
#include <valarray>
#include <assert.h>

using namespace std;

int main()
{
  const int kLen = 2;

  valarray<int> v1, v2;
  int i;

  v1.resize(kLen);

  for (i=0; i<kLen; ++i)
	 v1[i] = i;

  v2=v1;

  assert (v2.size() == v1.size());
  for (i=0; i<kLen; ++i)
	 assert (v2[i]==i);


  return 0;
}


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/11126] Error in valarray::operator =
  2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
@ 2003-06-08 15:38 ` lupoderi@tiscali.it
  2003-06-08 16:12 ` [Bug libstdc++/11126] New: " Gabriel Dos Reis
                   ` (6 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: lupoderi@tiscali.it @ 2003-06-08 15:38 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126



------- Additional Comments From lupoderi@tiscali.it  2003-06-08 15:38 -------
I meaning left side operand. Sorry.


^ permalink raw reply	[flat|nested] 9+ messages in thread

* Re: [Bug libstdc++/11126] New: Error in valarray::operator =
  2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
  2003-06-08 15:38 ` [Bug libstdc++/11126] " lupoderi@tiscali.it
@ 2003-06-08 16:12 ` Gabriel Dos Reis
  2003-06-08 16:12 ` [Bug libstdc++/11126] " gdr@integrable-solutions.net
                   ` (5 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Gabriel Dos Reis @ 2003-06-08 16:12 UTC (permalink / raw)
  To: gcc-bugzilla; +Cc: gcc-bugs

"lupoderi@tiscali.it" <gcc-bugzilla@gcc.gnu.org> writes:

| PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
| 
| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126
| 
|            Summary: Error in valarray::operator =
|            Product: gcc
|            Version: 3.3
|             Status: UNCONFIRMED
|           Severity: normal
|           Priority: P2
|          Component: libstdc++
|         AssignedTo: unassigned@gcc.gnu.org
|         ReportedBy: lupoderi@tiscali.it
|                 CC: gcc-bugs@gcc.gnu.org
| 
| The valarrat::operator=() doesn't change the size of right side operand.

This is not a bug.  It is standard conformant behaviour.
A valarray is not expected to be size-adapting.  It is  undefined if
the left and the right sides have different sizes.  This must be a
FAQ.

-- Gaby


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/11126] Error in valarray::operator =
  2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
  2003-06-08 15:38 ` [Bug libstdc++/11126] " lupoderi@tiscali.it
  2003-06-08 16:12 ` [Bug libstdc++/11126] New: " Gabriel Dos Reis
@ 2003-06-08 16:12 ` gdr@integrable-solutions.net
  2003-06-09  8:15 ` dhazeghi@yahoo.com
                   ` (4 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: gdr@integrable-solutions.net @ 2003-06-08 16:12 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126



------- Additional Comments From gdr@integrable-solutions.net  2003-06-08 16:12 -------
Subject: Re:  New: Error in valarray::operator =

"lupoderi@tiscali.it" <gcc-bugzilla@gcc.gnu.org> writes:

| PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
| 
| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126
| 
|            Summary: Error in valarray::operator =
|            Product: gcc
|            Version: 3.3
|             Status: UNCONFIRMED
|           Severity: normal
|           Priority: P2
|          Component: libstdc++
|         AssignedTo: unassigned@gcc.gnu.org
|         ReportedBy: lupoderi@tiscali.it
|                 CC: gcc-bugs@gcc.gnu.org
| 
| The valarrat::operator=() doesn't change the size of right side operand.

This is not a bug.  It is standard conformant behaviour.
A valarray is not expected to be size-adapting.  It is  undefined if
the left and the right sides have different sizes.  This must be a
FAQ.

-- Gaby


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/11126] Error in valarray::operator =
  2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
                   ` (2 preceding siblings ...)
  2003-06-08 16:12 ` [Bug libstdc++/11126] " gdr@integrable-solutions.net
@ 2003-06-09  8:15 ` dhazeghi@yahoo.com
  2003-06-09  9:58 ` gdr@integrable-solutions.net
                   ` (3 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: dhazeghi@yahoo.com @ 2003-06-09  8:15 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126



------- Additional Comments From dhazeghi@yahoo.com  2003-06-09 08:15 -------
Gaby, should this be closed, or marked as a documentation enhancement request?


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/11126] Error in valarray::operator =
  2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
                   ` (3 preceding siblings ...)
  2003-06-09  8:15 ` dhazeghi@yahoo.com
@ 2003-06-09  9:58 ` gdr@integrable-solutions.net
  2003-06-09 16:26 ` pme@gcc.gnu.org
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: gdr@integrable-solutions.net @ 2003-06-09  9:58 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126



------- Additional Comments From gdr@integrable-solutions.net  2003-06-09 09:58 -------
Subject: Re:  Error in valarray::operator =

"dhazeghi@yahoo.com" <gcc-bugzilla@gcc.gnu.org> writes:

| Gaby, should this be closed, or marked as a documentation
| enhancement request? 

Closed.

Thank you.

-- Gaby


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/11126] Error in valarray::operator =
  2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
                   ` (4 preceding siblings ...)
  2003-06-09  9:58 ` gdr@integrable-solutions.net
@ 2003-06-09 16:26 ` pme@gcc.gnu.org
  2003-06-09 18:57 ` lupoderi@tiscali.it
  2004-10-07  1:02 ` ppluzhnikov at charter dot net
  7 siblings, 0 replies; 9+ messages in thread
From: pme@gcc.gnu.org @ 2003-06-09 16:26 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126


pme@gcc.gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


------- Additional Comments From pme@gcc.gnu.org  2003-06-09 16:26 -------
Closed, not-a-bug, as per Gaby.

(Possibly a "debug mode" library could throw an exception during the assignment.)


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/11126] Error in valarray::operator =
  2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
                   ` (5 preceding siblings ...)
  2003-06-09 16:26 ` pme@gcc.gnu.org
@ 2003-06-09 18:57 ` lupoderi@tiscali.it
  2004-10-07  1:02 ` ppluzhnikov at charter dot net
  7 siblings, 0 replies; 9+ messages in thread
From: lupoderi@tiscali.it @ 2003-06-09 18:57 UTC (permalink / raw)
  To: gcc-bugs

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126



------- Additional Comments From lupoderi@tiscali.it  2003-06-09 18:57 -------
I think that throwing an exception when NDEBUG is not defined is a good idea. 
Thank you to the interest,

Luigi


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [Bug libstdc++/11126] Error in valarray::operator =
  2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
                   ` (6 preceding siblings ...)
  2003-06-09 18:57 ` lupoderi@tiscali.it
@ 2004-10-07  1:02 ` ppluzhnikov at charter dot net
  7 siblings, 0 replies; 9+ messages in thread
From: ppluzhnikov at charter dot net @ 2004-10-07  1:02 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From ppluzhnikov at charter dot net  2004-10-07 01:02 -------
*** Bug 17875 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ppluzhnikov at charter dot
                   |                            |net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11126


^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2004-10-07  1:02 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-06-08 15:36 [Bug libstdc++/11126] New: Error in valarray::operator = lupoderi@tiscali.it
2003-06-08 15:38 ` [Bug libstdc++/11126] " lupoderi@tiscali.it
2003-06-08 16:12 ` [Bug libstdc++/11126] New: " Gabriel Dos Reis
2003-06-08 16:12 ` [Bug libstdc++/11126] " gdr@integrable-solutions.net
2003-06-09  8:15 ` dhazeghi@yahoo.com
2003-06-09  9:58 ` gdr@integrable-solutions.net
2003-06-09 16:26 ` pme@gcc.gnu.org
2003-06-09 18:57 ` lupoderi@tiscali.it
2004-10-07  1:02 ` ppluzhnikov at charter dot net

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