min3.hpp

The following code example is taken from the book
C++ Templates - The Complete Guide, 2nd Edition
by David Vandevoorde, Nicolai M. Josuttis, and Douglas Gregor,
Addison-Wesley, 2017
© Copyright David Vandevoorde, Nicolai M. Josuttis, Douglas Gregor 2017


#include "iscontextualbool.hpp"
#include "lessresult.hpp"

template<typename T>
EnableIf<IsContextualBool<LessResult<T const&, T const&>>,
         T const&>
min(T const& x, T const& y)
{
  if (y < x) {
    return y;
  }
  return x;
}