Syntax:

    #include <valarray>
    TYPE max() const;

The max() function returns the largest element value as determined by the '<' operator. If TYPE is not a built-in type, an '<' operator must exist.

This function does not affect the contents of the valarray.

The following code will return the maximum value in the array:

   #include <valarray>
   #include <iostream>
 
   const double vd[] = {1,2,3,4,5};
   std::valarray<int> v1(vd,5);
   std::cout << v1.max() << std::endl;

Will produce this output:

   5