What are the logical operators "and", "or", and "not" in C++?
A logical operator is a symbol or word that connects two or more expressions so that the value of the produced expression created is solely determined by the value of the original expressions and the operator’s meaning.
Following are the logical operators available in C++:
andornot
Description
The table below explains each of the logical operators in C++.
Operator Symbol | Operator Name | Example | Description |
&& | Logical And | Operand-A && Operand-B | It returns True, when both the operand-A and operand-B is True, otherwise it returns False. |
|| | Logical Or | Operand-A || Operand-B | It returns True, when either the operand-A or operand-B is True, otherwise it returns False. |
! | Logical Not | ! Operand-A | It returns the operand's logical state in reverse. |
The following figure is the visual representation of the logical operators in C++.
Note:
Trueequates to1.Falseequates to0.
Code
The following code illustrates how to use these logical operators in C++.
#include <iostream>using namespace std;int main(){int A=10, B=20, C=30;//And Operator//Both Truecout<<"The value of (A<B && B<C): "<< (A<B && B<C) << "\n";//First operand: True Second Operand: Falsecout<<"The value of (A<B && B>C): "<< (A<B && B>C) << "\n";//Both Falsecout<<"The value of (A>B && B>C): "<< (A>B && B>C) << "\n";//OR operator//Both Truecout<<"The value of (A<B || B<C): "<< (A<B || B<C) << "\n";//First operand: True Second Operand: Falsecout<<"The value of (A<B || B>C): "<< (A<B || B>C) << "\n";//Both Falsecout<<"The value of (A>B || B>C): "<< (A>B || B>C) << "\n";//Not operatorbool D=true;//reverse of true logical statecout<<"The value of (!D): "<< (!D) << "\n";return 0;}
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Harris Amjad