8.2.9 Imp Operator

Used to perform a logical implication on two expressions.
Syntax
result = expression1 Imp expression2
Arguments
- result
- Any numeric variable.
- expression1
- Any expression.
- expression2
- Any expression.
Remarks
The following table illustrates how result is determined:
If expression1 is
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And expression2 is
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Then result is
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True
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True
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True
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True
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False
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False
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True
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Null
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Null
|
False
|
True
|
True
|
False
|
False
|
True
|
False
|
Null
|
True
|
Null
|
True
|
True
|
Null
|
False
|
Null
|
Null
|
Null
|
Null
|
The Imp operator performs a bitwise comparison of identically positioned bits in two numeric expressions and sets the corresponding bit in result according to the following table:
If bit in expression1 is
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And bit in expression2 is
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Then result is
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0
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0
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1
|
0
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1
|
1
|
1
|
0
|
0
|
1
|
1
|
1
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