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