Re: iterating over a collection with foreach
In article <foehj8$ev2$1@newsserver.cilea.it>, Lorenzo Bettini
<bettini@dsi.unifi.it> wrote:
Hi
I'd like to iterate over a collection of objects and for each object in
the collection I'd like to invoke a specific method, see the following
code (I'd like to call the method m on each Item in the list)
#include <iostream>
#include <algorithm>
#include <list>
using namespace std;
struct Item {
m() { cout << "Item::m" << endl; }
};
typedef list<Item> ItemList;
int main() {
ItemList mylist;
mylist.push_back(Item());
mylist.push_back(Item());
mylist.push_back(Item());
foreach(mylist.begin(), mylist.end(), Item::m());
return 0;
}
However, this code does not work (I think it might work using some boost
libraries but I'd like it to work with only STL).
I guees there are some "adjustments" with some other STL classes, am I
right?
many thanks in advance
Lorenzo
P.S. of course I might write a for loop manually, but I'd like the more
compact foreach version :-)
std::for_each(my_list.begin(),my_list.end(),std::mem_fun_ref(&Item::m));
does it with c++98.
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