Tip Bank

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RotateLeftI – Rotate an Integer to the left

‘ Rotate an Integer to the left the specified number of times” NOTE: requires Power2()Function RotateLeftI(ByVal value As Integer, ByVal times As Long) As Integer Dim i As Long, signBits

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RotateRightI – Rotate an Integer to the right

‘ Rotate an Integer to the right the specified number of times” NOTE: requires Power2()Function RotateRightI(ByVal value As Integer, ByVal times As Long) As Integer Dim i As Long, signBits

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BitToggle – Invert a bit in a value

‘ Toggle a bit in a value” NOTE: requires Power2()Function BitToggle(ByVal value As Long, ByVal bit As Long) As Long ‘ simply XOR with the negation of the bit mask

DevX - Software Development Resource

RotateLeft – Rotate a Long to the left

‘ Rotate a Long to the left the specified number of times” NOTE: requires Power2()Function RotateLeft(ByVal value As Long, ByVal times As Long) As Long Dim i As Long, signBits

DevX - Software Development Resource

RotateRight – Rotate a Long to the right

‘ Rotate a Long to the right the specified number of times” NOTE: requires Power2()Function RotateRight(ByVal value As Long, ByVal times As Long) As Long Dim i As Long, signBits

DevX - Software Development Resource

Power2 – A power of 2

‘ Raise 2 to a power’ the exponent must be in the range [0,31]Function Power2(ByVal exponent As Long) As Long Static res(0 To 31) As Long Dim i As Long

DevX - Software Development Resource

BitSet – Set a bit in a number

‘ Set a bit in a value” NOTE: requires Power2()Function BitSet(ByVal value As Long, ByVal bit As Long) As Long ‘ simply OR with the bit mask ‘ Range checking

DevX - Software Development Resource

Build List of Components in Hierarchy

It is sometimes useful to be able to obtain a complete list of the components in a container hierarchy. A getComponents() method is provided in the java.awt.Container class, but it

DevX - Software Development Resource

Pausing SQL Server

Pausing SQL Server prevents new users from logging in and gives you time to send a message to current users asking them to complete their work and log out before