For each loop in Native C++

Since Visual Studio 2005, native C++ has had a ‘for each’ loop construct, like C# or Java. Unfortunately it is restricted to collections from the STL library, such as vector. However, it does mean you can write very neat code to iterate through such a collection:



vector<int> data(3);
data[0] = 10;
data[1] = 20;
data[2] = 30;

//instead of this
int total = 0;
for (vector<int>::iterator vi = data.begin(); vi != data.end(); vi++)
{
    int i = *vi;
    total += i;
}
cout << "total: " << total << endl;

// do this:
total = 0;
for each( const int i in data )
    total += i;
cout << "total: " << total << endl;



Now we just need that making part of the C++ standard! If you are writing standard compliant code you will have to use the for_each function [^].