35 lines
2.4 KiB
Markdown
35 lines
2.4 KiB
Markdown
# Operators
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Language operators describe some algorithmic operations that must be executed to accomplish a task. The program body is a sequence of such operators. Operators following one by one are separated by semicolons.
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| Operator | Description |
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| --- | --- |
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| Compound operator {} | One or more operators of any type, enclosed in curly braces {} |
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| Expression operator (;) | Any expression that ends with a semicolon (;) |
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| return operator | Terminates the current function and returns control to the calling program |
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| if-else conditional operator | Is used when it's necessary to make a choice |
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| ?: conditional operator | A simple analog of the if-else conditional operator |
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| switch selection operator | Passes control to the operator, which corresponds to the expression value |
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| while loop operator | Performs an operator until the expression checked becomes false. The expression is checked before each iteration |
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| for loop operator | Performs an operator until the expression checked becomes false. The expression is checked before each iteration |
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| do-while loop operator | Performs an operator until the expression checked becomes false. The end condition is checked, after each loop. The loop body is always executed at least once. |
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| break operator | Terminates the execution of the nearest attached external operator switch, while, do-while or for |
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| continue operator | Passes control to the beginning of the nearest external loop operator while, do-while or for |
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| @ operator | Implements matrix multiplication according to the rules of linear algebra. It allows multiplying matrices and vectors , as well as performing scalar multiplication of vectors. |
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| new operator | Creates an object of the appropriate size and returns a descriptor of the created object. |
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| delete operator | Deletes the object created by the new operator |
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One operator can occupy one or more lines. Two or more operators can be located in the same line. Operators that control over the execution order (if, if-else, switch, while and for), can be nested into each other.
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Example:
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```
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if(Month() == 12)
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if(Day() == 31) Print("Happy New Year!");
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```
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See also
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[Initialization of Variables](/en/docs/basis/variables/initialization), [Visibility Scope and Lifetime of Variables](/en/docs/basis/variables/variable_scope), [Creating and Deleting Objects](/en/docs/basis/variables/object_live)
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