[Boost-users] BOOST_FOREACH with Index

Subject: [Boost-users] BOOST_FOREACH with Index
From: The Dude (thedsadude_at_[hidden])
Date: 2009-12-13 07:55:29

  Hello,

  Boost::foreach is very useful for iterating over a sequence and doing
something that depends only on the iterated element, e.g.,
<code>
BOOST_FOREACH(const Foo &f, foos)
  cout << f.bar() << endl;
</code>

  However, I often need to iterate over a sequence and do some operation
that depends on both the iterated element and the iteration index. E.g., I
would like something like
<code>
BOOST_FOREACH(size_t i, const Foo &f, foos)
  cout << "The bar of element " << i << " is " << f.bar() << endl;
</code>

  Is there an easy way to do so?

  Thanks & Bye,

  TD