Thanks, that is what I was suspecting. Is there already something in boost to do what I intend to do? If not, which strategy would you recommend to by pass this issue? I got some ideas but nothing straight forward and I would like it to be as efficient as possible. Thanks again, Nicolas On Jan 6, 2011, at 11:31 PM, Steven Watanabe wrote:
AMDG
On 1/6/2011 12:47 PM, Nicolas Rannou wrote:
I'm pretty new in boost and I am experimenting an issue I can't understand. It looks like the usage of "replace()" modifies the iterator I am iterating on:
Here is a simple example:
it iterates properly if I do:
Iterator it2, it3; boost::tuples::tie(it2, it3) = m_Container.get< CollectionID
().equal_range( 30 );
while( it2!= it3 ) { int time = it2->TCoord; if( time < 500 ) // we want to change the collection ID in this case { Structure tempStructure(*it2); tempStructure.CollectionID = 40; * //m_Container.get< CollectionID >().replace(it2, tempStructure); comment this line* } ++it2; }
whereas if I call "replace()" the iterator value changes to "it3" then it exists the loop: <snip>
the replace() method returns true.
I must be missing something but after reading the documentation and some researches on the web I couldn't find the answer.
Any help/explanation would be greatly appreciated,
The position of the element can change when you change the key. The iterator continues to point to the same element, but the element has moved.
In Christ, Steven Watanabe
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