BITMASKREAD | |
Description
Performs a bitwise mask read operation. |
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Returns
An integer, created from length bits of number, beginning at start. |
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Category
Mathematical functions |
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Function syntaxBitMaskRead(number, start, length) |
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See also
BitMaskClear, BitMaskSet |
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Parameters
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Usage
Bit functions operate on 32-bit signed integers, in the range -2147483648 - 2147483647. |
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Example<h3>BitMaskRead Example</h3> <p>Returns integer created from <em>length</em> bits of <em>number</em>, beginning with <em>start</em>. <p>BitMaskRead(255, 4, 4): <cfoutput>#BitMaskRead(255, 4, 4)# </cfoutput> <p>BitMaskRead(255, 0, 4): <cfoutput>#BitMaskRead(255, 0, 4)# </cfoutput> <p>BitMaskRead(128, 0, 7): <cfoutput>#BitMaskRead(128, 0, 7)# </cfoutput> |
NUMBER | |
START | |
LENGTH | |