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- Boolean operators
- True, False, And, Or, Not
- Usage
- x And y
Not(x != True)
x Or y
- Arguments
- True and False (BOOL) are boolean constants.
x, y (BOOL or INT). If an INT is used, a non-zero value is consired as a True value and 0 is equivalent to False.
- Returned Object
- The values by these functions are boolean (type BOOL). Any of the arguments may have value Undef. In this case, the result is always Undef.
- Description
- These are classical boolean operators. They are commonly used to make up predicates, i.e. functions that return a boolean value.
- See Also
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Comparison operators,
Select,
If-Then-Else,
Switch.
Examples
AML>1 And True
<BOOL> True
AML> Not(Not(0 Or False))
<BOOL> False
AML> Undef And True
Undef
AML> # Definition of apredicate
AML> pred(_x) = If_x > 3 And _x < 10 Then True Else False
<FUNC> Function
AML> pred(4)
<BOOL> True
AML> pred(11)
<BOOL> False
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