[Boost-users] choosing from a list of types based on a runtime value

Subject: [Boost-users] choosing from a list of types based on a runtime value
From: Hicham Mouline (hicham_at_[hidden])
Date: 2009-03-06 11:29:57

say I have a 

template <typename Tag>  // Tag should be 1 in 10 types
struct S {
...
};

in a function f(int Tag)   // Tag is computed here at runtime
{
 switch(Tag)
 {
   case 0:   // use S<Tag0>
  ...
   case 9:   // use S<Tag9>
 }
}

Is fusion the lib to help with problems like this,
so I don't need to write the full switch case for all types,

regards,