divides Struct

結構提供執行除法算術運算中指定之實值型別的元素之預先定義的函式物件。

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

參數

• _Left
  為參數型別 [型別] 由這個數字 _Right除以的數字。

• _Right
  為參數型別 [型別] 是將這個數字 _Left的數字。

傳回值

商數 _Left / _Right。

範例

// 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;
}

需求

標題: <functional>

命名空間: std

請參閱

參考

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