[Boost-users] [tuple] Tuple arithmetic

Subject: [Boost-users] [tuple] Tuple arithmetic
From: Bill Buklis (boostusr_at_[hidden])
Date: 2012-02-09 20:46:58

Is there any facility to perform arithmetic operations on a tuple?

For example:

     struct data
     {
         double    a, b;
     };

     data    d1 = {1.0, 2.0};
     data    d2 = {2.5, 5.5};

     // These two lines are not valid, but simulate what I want.
     boost::tie(d1.a, d1.b) *= 10.0;        // Multiply each element by 10.0
     boost::tie(d1.a, d1.b) += boost::tie(d2.a, d2.b);    // Add the 
elements from the second object

After calculations, d1 should equal {12.5, 25.5};

Thanks,

-- 
Bill