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Use integer division operator
[ All Languages » VB »  Math]

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Use "\" instead of "/" when performing divisions between Integers. The "/" operator returns a Single value, therefore the seemingly efficient line

Click here to copy the following block
C% = A% / B%

actually requires three implicit conversions, two for converting the operands from Integer to Single (to prepare them for the division) and one to convert the result from Single to Integer (to complete the assignment). If you use the "\" operator you don't incur in this overhead, and the division itself is faster. While we are on this topic, keep in mind that the "/" operator returns a Double value if at least one of its operands is a Double; therefore if you wish the highest precision when dividing two Integer or Single values, you should manually coerce one of them into Double type:

Click here to copy the following block
' this prints 0.3333333
Print 1 / 3
' this prints 0,333333333333333
Print 1 / 3#


Submitted By : Nayan Patel  (Member Since : 5/26/2004 12:23:06 PM)

Job Description : He is the moderator of this site and currently working as an independent consultant. He works with VB.net/ASP.net, SQL Server and other MS technologies. He is MCSD.net, MCDBA and MCSE. In his free time he likes to watch funny movies and doing oil painting.
View all (893) submissions by this author  (Birth Date : 7/14/1981 )


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