divides Struct

The struct provides a predefined function object that performs the arithmetic operation of division on elements of a specified value type.

template<class Type>
   struct divides : public binary_function <Type, Type, Type> 
   {
      Type operator()(
         const Type& _Left, 
         const Type& _Right ) const;
   };

Parameters

• _Left
  A number that is of the parameter type Type that is to be divided by the number _Right.

• _Right
  A number that is of the parameter type Type that is to divide the number _Left.

Return Value

The quotient _Left / _Right.

Example

// functional_divides.cpp
// compile with: /EHsc
#include <vector>
#include <functional>
#include <algorithm>
#include <iostream>

using namespace std;

int main( )
{
   vector <double> v1, v2, v3 (6);
   vector <double>::iterator Iter1, Iter2, Iter3;
   
   int i;
   for ( i = 0 ; i <= 5 ; i++ )
   {
      v1.push_back( 7.0 * i );
   }

   int j;
   for ( j = 1 ; j <= 6 ; j++ )
   {
      v2.push_back( 2.0 * j);
   }

   cout << "The vector v1 = ( " ;
   for ( Iter1 = v1.begin( ) ; Iter1 != v1.end( ) ; Iter1++ )
      cout << *Iter1 << " ";
   cout << ")" << endl;

   cout << "The vector v2 = ( " ;
   for ( Iter2 = v2.begin( ) ; Iter2 != v2.end( ) ; Iter2++ )
      cout << *Iter2 << " ";
   cout << ")" << endl;

   // Finding the element-wise quotients of the elements of v1 & v2
   transform ( v1.begin( ), v1.end( ), v2.begin( ), v3.begin ( ), 
      divides<double>( ) );

   cout << "The element-wise quotients are: ( " ;
   for ( Iter3 = v3.begin( ) ; Iter3 != v3.end( ) ; Iter3++ )
      cout << *Iter3 << " ";
   cout << ")" << endl;
}

The vector v1 = ( 0 7 14 21 28 35 )
The vector v2 = ( 2 4 6 8 10 12 )
The element-wise quotients are: ( 0 1.75 2.33333 2.625 2.8 2.91667 )

Requirements

Header: <functional>

Namespace: std

See Also

Concepts

<functional> Members

Thread Safety in the Standard C++ Library

Standard Template Library