Relational operators
The following table shows all the relational operators supported by C language. Assume variable A holds 10 and variable B holds 20 then
Operator |
Description |
Example |
== |
Checks if the value of two operands are equal or not. If yes, then the condition becomes true. |
A == B is not true. |
!= |
Checks if the values of two operands are equal or not. If the values are not equal, then the condition becomes true. |
A != B is true. |
> |
Checks if the value of left operand is greater than the value of right operand. If yes, then the condition becomes true. |
A > B is not true. |
< |
Checks if the value of left operand is less than the value of right operand. If yes, then the condition becomes true. |
A < B is true |
>= |
Checks if the value of left operand is greater than or equal to the value of right operand. If yes, then the condition becomes true. |
A >= B is not true |
<= |
Checks if the value of left operand is less than or equal to the value of right operand. If yes, then the condition becomes true. |
A <= B is true. |
Logical Operators
The logical operators are used to test more than one condition, and these are used to combine 2 or more expressions logically. They are
- && (Logical AND)
- || (Logical OR)
- ! (Logical NOT)
&& (Logical AND)
Expression 1 |
Expression 2 |
Expression 1 && Expression 2 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
0 |
1 |
1 |
1 |
|| (Logical OR)
Expression 1 |
Expression 2 |
Expression 1 && Expression 2 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
1 |
1 |
1 |
1 |
1 |
! (Logical NOT)
Expression |
! Expression |
0 |
1 |
1 |
0 |
Bitwise Logical Operators
The following table lists the Bitwise operators supported by C. Assume variable 'a' holds 60 and variable 'B' holds 13.
Operator |
Description |
Example |
& |
Binary AND Operator copies a bit to the result if it exists in both operands. |
A & B = 12 |
| |
Binary OR Operator copies a bit if it exists in either operand. |
A | B = 61 |
^ |
Binary XOR Operator copies the bit if it is set in one operand but not both. |
A ^ B = 49 |
~ |
Binary One's complement Operator is uanry and has the effect of flipping bits. |
~A = ~(60) |
<< |
Bianry Left Shift Operator. The left operasnds value is moved left by the number of bits specified by the right operand. |
A << 2 = 240 |
>> |
Binary Right shift Operator. The left operands value is moved right by the number of bits specified by the right operand. |
A >> 2 = 15 |