C++11 range-based for and map : readability [duplicate]

Question

The new range-based for loops really improve readability and are really easy to use. However, consider the following :

map<Foo,Bar> FooAndAssociatedBars;

for (auto& FooAndAssociatedBar : FooAndAssociatedBars) {
    FooAndAssociatedBar.first.doSth();
    FooAndAssociatedBar.second.doSomeOtherThing();
}

It may be a detail but I find it would have been more readable if I could have done something like :

for ( (auto& foo, auto& bar) : FooAndAssociatedBars) {
    foo.doSth();
    bar.doSomeOtherThing();
}

Do you know an equivalent syntax ?

EDIT: Good news: C++17 has a proposal that adresses this problem, called structured bindings (see 1). In C++17, you should be able to write:

tuple<T1,T2,T3> f(/*...*/) {
    /*...*/ 
    return {a,b,c};
}
auto [x,y,z] = f(); // x has type T1, y has type T2, z has type T3

which solves this readability problem

Answer 1

There is no such thing as you want. The closest is to declare variables inside the loop:

for (auto& FooAndAssociatedBar : FooAndAssociatedBars) {
    auto& foo = FooAndAssociatedBar.first;
    auto& bar = FooAndAssociatedBar.second;

    // ...
}