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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 And expression2 is Then result is
True
 
True
 
True
 
True
 
False
 
False
 
True
 
Null
 
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 And bit in expression2 is Then result is
0
 
0
 
1
 
0
 
1
 
1
 
1
 
0
 
0
 
1
 
1
 
1
 


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