The Logical operators in C are used to combine two or more conditions. And perform the logical operations using && (AND), || (OR) and ! (NOT)
The Relational operators are used to compare two variables; what if we want to compare more than one condition? Very simple, logical operators will do the trick for you. The below table shows the list of Logical Operators with examples.
| OPERATORS | NAME | DESCRIPTION | EXAMPLE |
|---|---|---|---|
| && | AND | It returns true when both conditions are true | If (age > 18 && age <=35) |
| || | OR | It returns true when at least one of the conditions is true | If (age > 35 || age < 60) |
| ! | NOT | If the condition is true, the logical NOT operator makes it false | If age = 18 then !( age = 18) returns false. |
Let us see the truth tables behind the logical operators in this language to understand Operators better. For more, please refer to the All Operators and Relational articles in C Programming.
&& AND Logical Operator in this C Programming language.
| Condition 1 | Condition 2 | Condition 1 && Condition 2 |
|---|---|---|
| True | True | True |
| True | False | False |
| False | True | False |
| False | False | False |
|| (OR Operator) Truth Table
| Condition 1 | Condition 2 | Condition 1 || Condition 2 |
|---|---|---|
| True | True | True |
| True | False | True |
| False | True | True |
| False | False | False |