C++ Operators
Definition:
An operator is a symbol that operates on a value to perform specific mathematical or logical computations.They form the foundation of any programming language.In C++, we have built-in operators to provide the required functionality.
Types of Operators
- Arithmetic Operators
- Assignment Operators
- Comparison Operators
- Logical Operators
- Bitwise Operators
Arithmetic Operators
| Name | Operator | Example |
|---|---|---|
| Addition | + | a+b |
| Subtraction | - | a-b |
| Multiplication | * | a*b |
| Division | / | a/b |
| Modulus | % | a%b |
| Increment | ++ | a++ or ++a |
| Decrement | -- | a-- or --a |
Assignment Operators
| Operator | Example | Same as |
|---|---|---|
| = | a=10 | a=10 |
| += | a+=10 | a=a+10 |
| -= | a-=10 | a=a-10 |
| *= | a*=10 | a=a*10 |
| /= | a/=10 | a=a/10 |
| %= | a%=10 | a=a%10 |
| //= | a//=10 | a=a//10 |
| **= | a**=10 | a=a**10 |
| &= | a&=10 | a=a&10 |
| |= | a|=10 | a=a|10 |
| ^= | a^=10 | a=a^10 |
| //= | a//=10 | a=a//10 |
| >>= | a>>=10 | a=a>>10 |
| <<= | a<<=10 | a=a<<10 |
Comparison Operators
| Name | Operator | Example |
|---|---|---|
| Equal | == | a==b |
| Not Equal | != | a!=b |
| Greater Than | > | a>b |
| Less Than | < | a<b |
| Greater Than or Equal to | >= | a>=b |
| Less Than or Equal to | <= | a<=b |
Logical Operators
| Name | Description | Example |
|---|---|---|
| and | Returns True if both statements are true | a<5 and b<10 |
| or | Returns True if one of the statements is true | a<10 or b<5 |
| not | Reverse the result, returns False if the result is true | not(a<5 and b<10) |
Bitwise Operators
| Name | Description | Example |
|---|---|---|
| AND | Sets each bit to 1 if both bits are 1 | a & b |
| OR | Sets each bit to 1 if one of two bits is 1 | a | b |
| XOR | Sets each bit to 1 if only one of two bits is 1 | a ^ b |
| NOT | Inverts all the bits | ~a |
| Zero fill left shift | Shift left by pushing zeros in from the right and let the leftmost bits fall off | a<<3 |
| Signed right shift | Shift right by pushing copies of the leftmost bit in from the left, and let the rightmost bits fall off | a>>3 |