Difference between revisions of "Operators"
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| − | There are | + | There are seven major types of mathematical operator, and four major types of bitwise operator.<br /> |
| − | + | ==Mathematical operators== | |
| − | + | {| class="wikitable" | |
| − | + | |- | |
| − | + | ! Operation !! Character used !! Description !! Example | |
| − | + | |- | |
| − | + | | Addition || Performed using the "+" operator || Adds values together. || <tt>A + B = 12</tt> | |
| − | < | + | |- |
| − | + | | Subtraction || Performed using the "-" operator || Subtracts values. || <tt>A - B = 8</tt> | |
| − | + | |- | |
| − | + | | Multiplication || Performed using the "*" operator || Multiplies values together. || <tt>A * B = 20</tt> | |
| − | + | |- | |
| + | | Division || Performed using the "/" operator || Divides values. || <tt>S / B = 5</tt> | ||
| + | |- | ||
| + | | Increment || Performed using the "++" operator || Adds 1 to a variable and saves the variable. || <tt>A++ = 11</tt> | ||
| + | |- | ||
| + | | Decrement || Performed using the "--" operator || Subtracts 1 from a variable and saves the variable. || <tt>B-- = 9</tt> | ||
| + | |- | ||
| + | | Modulus || Performed using the "%" operator || Finds the remainder of a division between values. || <tt>10 % 3 = 1</tt> | ||
| + | |} | ||
| + | Note: there are variations on the increment and decrement operators. These can be performed in both prefix and postfix forms. In prefix form, (syntax "++x;") the variable will be incremented or decremented, and then the value will be used by the function calling it. In postfix form, however, (syntax "x++;") the variable will be used by the function calling it, and be incremented or decremented afterwards. | ||
| + | |||
| + | ==Comparison Operators== | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | ! Operation !! Character used !! Description !! Example | ||
| + | |- | ||
| + | | Equal || Performed using == || Returns true if both inputs are the same. || <tt>value == "test"</tt> | ||
| + | |- | ||
| + | | Not Equal|| performed using != || returns true if both inputs are not the same || <tt>value != "test"</tt> | ||
| + | |- | ||
| + | |Less Than || Performed using < || Returns true if value 1 is less than or equal to value 2. || <tt>value < 0</tt> | ||
| + | |- | ||
| + | |Greater Than || performed using > || Returns true if value 1 is greater than value 2. || <tt>value > 1</tt> | ||
| + | |- | ||
| + | |Less Than or Equal || Performed using <= || Returns true if value 1 is less than or equal to value 2. || <tt>value <= 0</tt> | ||
| + | |- | ||
| + | |Greater Than or Equal|| performed using >= || Returns true if value 1 is greater than or equal to value 2. || <tt>value >= 1</tt> | ||
| + | |} | ||
| + | |||
| + | ==Bitwise operators== | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | ! Operation !! Character used !! Description !! Example | ||
| + | |- | ||
| + | | AND || Performed using "&" or "&&" || Returns true if both inputs are true. || <tt>true && false = false</tt> | ||
| + | |- | ||
| + | | OR || performed using "<nowiki>|</nowiki>" or "<nowiki>||</nowiki>" || returns true if one or both inputs are true. || <tt>true <nowiki>||</nowiki> false = true</tt> | ||
| + | |- | ||
| + | | XOR || Performed using "^" || Returns true if both inputs are different. || <tt>true ^ false = true</tt> | ||
| + | |- | ||
| + | | NOT || performed using "!" || Returns false if true, or true if false. || <tt><nowiki>!</nowiki>true = false</tt> | ||
| + | |} | ||
| + | The "and" and "or" operators also have variants when combined with "not", known as "nand" and "nor", but these cannot be performed directly in C#. and instead must be performed by combining the "and"/"or" with the "not" function. | ||
Latest revision as of 21:30, 30 December 2016
There are seven major types of mathematical operator, and four major types of bitwise operator.
Mathematical operators
| Operation | Character used | Description | Example |
|---|---|---|---|
| Addition | Performed using the "+" operator | Adds values together. | A + B = 12 |
| Subtraction | Performed using the "-" operator | Subtracts values. | A - B = 8 |
| Multiplication | Performed using the "*" operator | Multiplies values together. | A * B = 20 |
| Division | Performed using the "/" operator | Divides values. | S / B = 5 |
| Increment | Performed using the "++" operator | Adds 1 to a variable and saves the variable. | A++ = 11 |
| Decrement | Performed using the "--" operator | Subtracts 1 from a variable and saves the variable. | B-- = 9 |
| Modulus | Performed using the "%" operator | Finds the remainder of a division between values. | 10 % 3 = 1 |
Note: there are variations on the increment and decrement operators. These can be performed in both prefix and postfix forms. In prefix form, (syntax "++x;") the variable will be incremented or decremented, and then the value will be used by the function calling it. In postfix form, however, (syntax "x++;") the variable will be used by the function calling it, and be incremented or decremented afterwards.
Comparison Operators
| Operation | Character used | Description | Example |
|---|---|---|---|
| Equal | Performed using == | Returns true if both inputs are the same. | value == "test" |
| Not Equal | performed using != | returns true if both inputs are not the same | value != "test" |
| Less Than | Performed using < | Returns true if value 1 is less than or equal to value 2. | value < 0 |
| Greater Than | performed using > | Returns true if value 1 is greater than value 2. | value > 1 |
| Less Than or Equal | Performed using <= | Returns true if value 1 is less than or equal to value 2. | value <= 0 |
| Greater Than or Equal | performed using >= | Returns true if value 1 is greater than or equal to value 2. | value >= 1 |
Bitwise operators
| Operation | Character used | Description | Example |
|---|---|---|---|
| AND | Performed using "&" or "&&" | Returns true if both inputs are true. | true && false = false |
| OR | performed using "|" or "||" | returns true if one or both inputs are true. | true || false = true |
| XOR | Performed using "^" | Returns true if both inputs are different. | true ^ false = true |
| NOT | performed using "!" | Returns false if true, or true if false. | !true = false |
The "and" and "or" operators also have variants when combined with "not", known as "nand" and "nor", but these cannot be performed directly in C#. and instead must be performed by combining the "and"/"or" with the "not" function.
