The information in this article applies to:
SUMMARYThe Visual Basic for Applications Imp operator is used to perform a logical implication on two expressions. If you are using the Imp operator with two numeric expressions as arguments, Visual Basic for Applications performs a bit-wise comparison of identically positioned bits. MORE INFORMATIONThe syntax for the Imp operator is as follows
where <expression1> and <expressions2> are any expressions and <result> is
any numeric variable.
When you use the Imp operator to perform a bit-wise comparison of identically positioned bits in two numeric expressions, the result of the bit-wise comparison is determined using the rules in the following table.
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http://www.microsoft.com/support/supportnet/overview/overview.aspFor example, if you run the following macro, a message box displays the value of -11:
The value -11 is returned because the macro follows the rules in the table
and uses twos complement notation. Using twos complement notation, the
leftmost bit represents the sign bit. If this bit is one, the number is
negative; if this bit is zero, the number is positive. To convert a
negative number from binary back to decimal, complement all of the bits (1
becomes 0 and 0 becomes 1), convert that number to decimal, change the sign
of the decimal number, and then subtract 1.
In the example, the Imp operator is used with the two numeric values 10 and 4. In binary form (2 bytes), these two numbers appear as follows:
Using the bit-wise comparison rules from the table yields the result value
in binary form:
To determine the decimal equivalent of result, use the twos complement
rules of conversion as follows:
REFERENCES
For more information about the Imp Operator, click the Office Assistant,
type Imp Operator, click Search, and then click to view "Imp Operator."
Q179216 OFF98: How to Use the Microsoft Office Installer Program Additional query words: XL98
Keywords : kbprg xlvbainfo OffVBA |
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