BitReplace

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This function returns the unsigned number formed by var value with replacement specified at bits field to field + width - 1

Syntax

uint bitReplace ( uint var, uint replaceValue, int field, int width = 1 )

Required arguments

• var: The value
• replaceValue: The replaceValue
• field: The field number
• width: Number of bits to extract

Returns

Returns the replaced value/bit sequence.

Example

function replaceColorAlpha(color, alpha)
   return bitReplace(color,alpha,24,8) -- return value with replaced bits 24-32 ( the alpha, http://en.wikipedia.org/wiki/RGBA_color_space ) 
end

See Also

• bitAnd
• bitNot
• bitOr
• bitXor
• bitTest
• bitLRotate
• bitRRotate
• bitLShift
• bitRShift
• bitArShift
• bitExtract
• bitReplace