Re: About list::sort() in STL

From:

=?UTF-8?B?RXJpayBXaWtzdHLDtm0=?= <Erik-wikstrom@telia.com>

Newsgroups:

comp.lang.c++

Date:

Wed, 24 Oct 2007 19:57:53 GMT

Message-ID:

<5tNTi.12130$ZA.7825@newsb.telia.net>

On 2007-10-24 21:11, gjin@mail.utexas.edu wrote:

On Oct 24, 1:51 pm, Erik Wikstr??m <Erik-wikst...@telia.com> wrote:

On 2007-10-24 20:11, g...@mail.utexas.edu wrote:

On Oct 24, 12:35 pm, red floyd <no.s...@here.dude> wrote:

g...@mail.utexas.edu wrote:

Hi there,

I met a problem, which I could not solve. I used it as the
following:

list<long> L

for (long i=1;i<=479250; i++)
L.push_back(i);

L.size(); // this gives 479250;

L.sort();

L.size(); // Here it gives 20498?

Why the elements in the list are removed??? I could not understand it

Really appreciate your help!

Doesn't happen in g++ 3.4.4. What is your platform? Please provide a
minimal *COMPILABLE* (emphasis on compilable) example that exhibits the
behavior in question.

Thank you.- Hide quoted text -

- Show quoted text -

I use Visual C++ 6.0. Here is a simple example I test, which does not
work.

#include <iostream>
#includer<list>

using namespace std;

int main()
{

   list<long> L;

   for (long i=1;i<=479250; i++)
      L.push_back(i);

    cout<< L.size()<<endl; // give 479250

    L.sort();

    cout<< L.size() << endl; // give 20498;???

    return 0;
}

Not reproducible in VC++ 2005, seems like an implementation bug to me.

--
Erik Wikstr??m- Hide quoted text -

Please do not quote signatures.

About red floyd reply:

Yes, I used the above code to test exactly on my computer. I got wrong
result.

I guess it was caused by my visual C++ 6.00 or Standard Template
Library

Does anyone use visual C++ 6.00 and can help test it?

About Erik's reply:

Does you mean that my test code works well in your Visual C++ 2005?

Yes, it works just fine for me.

--
Erik Wikstr??m