C++ <valarray> - operator&& Function
The C++ <valarray> operator&& function is used to apply logical AND operator to each element of two valarrays, or a valarray and a value.
Syntax
template <class T>
valarray<bool> operator&&
(const valarray<T>& lhs, const valarray<T>& rhs);
template <class T>
valarray<bool> operator&&
(const T& val, const valarray<T>& rhs);
template <class T>
valarray<bool> operator&&
(const valarray<T>& lhs, const T& val);
Parameters
lhs |
Specify left-hand side valarray. |
rhs |
Specify right-hand side valarray. |
val |
Specify a value of type T. |
Return Value
Returns a new valarray object containing elements as a result of performing operation on each element.
Time Complexity
Depends on library implementation.
Example:
The example below shows the usage of operator&& function.
#include <iostream>
#include <valarray>
using namespace std;
int main (){
valarray<int> va1 {1, 1, 0, 0};
valarray<int> va2 {1, 0, 1, 0};
valarray<bool> va3, va4;
//result of va1 && 1 is stored in va3
va3 = va1 && 1;
cout<<"va3 contains: ";
for(int i = 0; i < va3.size(); i++)
cout<<va3[i]<<" ";
//result of va1 && va2 is stored in va4
va4 = va1 && va2;
cout<<"\nva4 contains: ";
for(int i = 0; i < va4.size(); i++)
cout<<va4[i]<<" ";
return 0;
}
The output of the above code will be:
va3 contains: 1 1 0 0 va4 contains: 1 0 0 0
❮ C++ <valarray> Library
