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Help with Explicit parameter polymorhphism

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Help with Explicit parameter polymorhphism

 
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  #1
Nov 3rd, 2008
So explicit parametric polymorphism need not be restricted to a single type parameter. In other words I can write this in C++
C++ Syntax (Toggle Plain Text) 
  1. template <typename First, typename Second>
  2. struct Pair
  3. { First f;
  4. Second s;
  5. };

Can someone help me write a funciton "makePair" that takes two paramters of different types and returns a Pair containing its two values?
Hope someone can help
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Re: Help with Explicit parameter polymorhphism

 
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  #2
Nov 4th, 2008
have a look at the standard header <utility>. it defines std::pair and std::make_pair.

C++ Syntax (Toggle Plain Text) 
  1. template <typename First, typename Second>
  2. struct Pair 
  3. {  
  4.   First f;
  5.   Second s;
  6.   Pair( const First& ff, const Second& ss ) :  f(ff), s(ss) {}
  7.   // etc
  8. };
  9.  
  10. template <typename First, typename Second> inline 
  11. Pair<First,Second>   makePair( const First& f, const Second& s )
  12. { return   Pair<First,Second>( f, s ) ; }
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