Integer Modulus '//'

Syntax

Assignment Variable = Variable // Variable

Overview

Return the remainder left after dividing one unsigned or signed value by another.

Operands

Variable can be a constant, variable or expression. Assignment Variable can be any valid variable type.

Some division problems do not have a whole-number result; they return a whole number and a fraction. For example, 1000 / 6 = 166.667. Integer math doesn't allow the fractional portion of the result, so 1000 / 6 = 166. However, 166 is an approximate answer, because 166 * 6 = 996. The division operation left a remainder of 4. The // returns the remainder of a given division operation. Numbers that divide evenly, such as 1000 / 5, produce a remainder of 0.

Example 1

Device = 18F26K40             ' Select the device to compile for
Declare Xtal = 16  ' Tell the compiler the device will be operating at 16MHz
Declare Hserial_Baud = 9600   ' Set the Baud rate for HRsoutLn

Dim Value1 as Word
Dim Value2 as Word

Value1 = 1000
Value2 = 6
Value1 = Value1 // Value2               ' Get remainder of Value1 / Value2.
HRsoutLn Dec Value1                     ' Display the result (4).

Example 2

' 32-bit modulus
  Device = 18F26K40             ' Select the device to compile for
  Declare Xtal = 16  ' Tell the compiler the device will be operating at 16MHz
  Declare Hserial_Baud = 9600   ' Set the Baud rate for HRsoutLn

  Dim wMyVar1 as Word
  Dim dMyVar2 as Dword

  wMyVar1 = 100
  dMyVar2 = 99999
  dMyVar2 = dMyVar2 // wMyVar1           ' Mod the numbers.
  HRsoutLn Dec Value2                     ' Display the result

Note.

The modulus operator does not operate with floating point constants or variables.

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