C Programming/Operators: Difference between revisions
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== Increment and Decrement Operators == | == Increment and Decrement Operators == | ||
Increment and Decrement Operators are useful operators generally used to minimize the calculation, i.e. <code>++x</code> & <code>x++</code> means <code>x=x+1</code> or <code>--x</code> & <code>x−−</code> means <code>x=x-1</code>. But there is a slight difference between <code>++</code> or <code>−−</code> written before or after the operand. Applying the pre-increment first add one to the operand and then the result is assigned to the variable on left whereas post-increment first assigns the value to the variable on left and then increment the operand. | Increment and Decrement Operators are useful operators generally used to minimize the calculation, i.e. <code>++x</code> & <code>x++</code> means <code>x=x+1</code> or <code>--x</code> & <code>x−−</code> means <code>x=x-1</code>. But there is a slight difference between <code>++</code> or <code>−−</code> written before or after the operand. Applying the pre-increment first add one to the operand and then the result is assigned to the variable on left whereas post-increment first assigns the value to the variable on left and then increment the operand. | ||
{| class="wikitable sortable" | |||
|- | |||
! Operator !! Description | |||
|- | |||
| ++ || Increment | |||
|- | |||
| −− || Decrement | |||
|} | |||
== Relational Operators == | == Relational Operators == | ||
Revision as of 04:00, 5 February 2018
An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. C language is rich in built-in operators and provides the following types of operators:
Arithmetic Operators
Arithmetic Operators are used to performing mathematical calculations like addition +, subtraction -, multiplication *, division / and modulus %.
| Operator | Description |
|---|---|
| + | Addition |
| - | Subtraction |
| * | Multiplication |
| / | Division |
| % | Modulus |
Increment and Decrement Operators
Increment and Decrement Operators are useful operators generally used to minimize the calculation, i.e. ++x & x++ means x=x+1 or --x & x−− means x=x-1. But there is a slight difference between ++ or −− written before or after the operand. Applying the pre-increment first add one to the operand and then the result is assigned to the variable on left whereas post-increment first assigns the value to the variable on left and then increment the operand.
| Operator | Description |
|---|---|
| ++ | Increment |
| −− | Decrement |
Relational Operators
Relational operators are used to compare two quantities or values.
Logical Operators
C provides three logical operators when we test more than one condition to make decisions. These are: && (meaning logical AND), || (meaning logical OR) and ! (meaning logical NOT).
Bitwise Operators
C provides a special operator for bit operation between two variables.
Assignment Operators
Assignment operators applied to assign the result of an expression to a variable. C has a collection of shorthand assignment operators.
Conditional Operator
C offers a ternary operator which is the conditional operator (?: in combination) to construct conditional expressions.
Special Operators
C supports some special operators