Re: [Mingw-users] Delete an element in a map while iterate on it

[TSalm <TS...@fr...>]

Роман Донченко a écrit :
> TSalm <TS...@fr...> писал(а) в своём письме Thu, 10  
> Sep 2009 01:29:23 +0400:
>
>   
>>> TSalm,
>>>
>>> This is a much general C++ question rather than that about MinGW. I
>>> think the newsgroup comp.lang.c++ would be better.
>>>
>>> It is not safe to delete an element of a map before using the iterator
>>> pointing to it. One of my methods may like this:
>>>
>>> for (map<string, string> it = myMap.begin(); it != myMap.end(); )
>>> {
>>>     if (it->first == "2") // condition for deleting
>>>     {
>>>         map<string, string> toDel = it;
>>>         it++;
>>>         myMap.erase(toDel);
>>>     }
>>>     else
>>>     {
>>>         it++;
>>>     }
>>> }
>>>       
>> Thanks, this work perfectly !
>> And thanks too for your advice about comp.lang.c++.
>>     
>
> Also of note is that in C++9x you will likely be able to delete by saying  
> "it = myMap.erase(it)", as the definition of erase is amended to make it  
> return an iterator to the next element. Until then, do the above.
>
>   
Interesting. Is there a version of MingW featuring some C++0x 
functionnalities ?