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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Updated: (STDCXX-179) std::vector::insert(iterator, ForwardIterator, ForwardIterator) inserts wrong data
Date Thu, 25 May 2006 17:03:31 GMT
     [ http://issues.apache.org/jira/browse/STDCXX-179?page=all ]

Martin Sebor updated STDCXX-179:
--------------------------------

    Attachment: t.cpp

Exhaustive test program attached.

> std::vector::insert(iterator, ForwardIterator, ForwardIterator) inserts wrong data
> ----------------------------------------------------------------------------------
>
>          Key: STDCXX-179
>          URL: http://issues.apache.org/jira/browse/STDCXX-179
>      Project: C++ Standard Library
>         Type: Bug

>   Components: 23. Containers
>     Versions: 4.1.3
>  Environment: All.
>     Reporter: Craig Chariton
>     Assignee: Martin Sebor
>     Priority: Critical
>      Fix For: 4.1.4
>  Attachments: t.cpp
>
> There is an interesting problem that occurs with vectors.  Here is the sample code:
> #include <iostream>   // for cout, endl
> #include <vector>     // for vector
> int main ()
> {
>   std::vector<int> a;
>   a.push_back(1);
>   a.push_back(2);
>   a.push_back(3);
>   a.push_back(4);
>   std::vector<int> b;
>   b.push_back(0);
>   a.insert(a.begin(), b.begin(), b.end());
>   for( std::vector<int>::iterator i = a.begin(); i != a.end(); ++i)
>     std::cout << (*i) << ",";
>     std::cout << std::endl;
>    return 0;
> }
> The output is 0,2,3,1,2, instead of 0,1,2,3,4, .
> I tried some other combinations as follows:
> a = 1, b = 0  -  works, get 0,1
> a = 1,2, b = 0  -  works, get 0,1,2
> a = 1,2,3, b = 0  -  fails, get 0,2,1,2
> a = 1,2,3, b = 0, 5  -  fails, get 0,5,3,2,3
> a = 1,2, b = 0,5  -  works, get 0,5,1,2
> a = 1,2,3,4, b = 0,5  -  works, get 0,5,1,2,3,4
> a = 1,2,3,4,5, b = 0,5  -  fails, get 0,5,3,1,2,3,5

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