To

Statement modifier to specify a range.

Syntax
   For iterator intial_value To ending_value
      statement(s).
   Next [ iterator ]
or
   Select Case case_comparison_value
   Case lower_bound To upper_bound
      statement(s).
   End Select
or
   Dim variable_identifier( lower_bound To upper_bound ) As type_specifier

Description
   The To keyword is used to define a certain numerical range. This keyword 
   is valid only if used with For ... Next, Case and Dim statements.

   In the first syntax, the To keyword defines the initial and ending 
   values of the iterator in a For statement.

   In the second syntax, the To keyword defines lower and upper bounds for 
   Case comparisons.

   In the third syntax, the To keyword defines the array bounds in a Dim 
   statement

   For more information, see For...Next, Dim and Select Case.

Example
   '' this program uses bound variables along with the TO keyword to create an array, store random
   '' temperatures inside the array, and to determine output based upon the value of the temperatures
   Randomize Timer

   '' define minimum and maximum number of temperatures we will create
   Const minimum_temp_count As Integer = 1
   Const maximum_temp_count As Integer = 10

   '' define the range of temperatures zones in which bacteria breed rapidly (in degrees)
   Const min_low_danger As Integer = 40
   Const max_low_danger As Integer = 69
   Const min_medium_danger As Integer = 70
   Const max_medium_danger As Integer = 99
   Const min_high_danger As Integer = 100
   Const max_high_danger As Integer = 130

   '' define array to hold temperatures using our min/max temp count bounds
   Dim As Integer array( minimum_temp_count To maximum_temp_count )

   '' declare a for loop that iterates from minimum to maximum temp count
   Dim As Integer it
   For it = minimum_temp_count To maximum_temp_count

      array( it ) = Int( Rnd( 1 ) * 200 ) + 1

      '' display a message based on temperature using our min/max danger zone bounds
      Select Case array( it )
        Case min_low_danger To max_low_danger
          Color 11
          Print "Temperature" ; it ; " is in the low danger zone at" ; array( it ) ; " degrees!"
        Case min_medium_danger To max_medium_danger
          Color 14
          Print "Temperature" ; it ; " is in the medium danger zone at" ; array( it ) ; " degrees!"
        Case min_high_danger To max_high_danger
          Color 12
          Print "Temperature" ; it ; " is in the high danger zone at" ; array( it ) ; " degrees!"
        Case Else
          Color 3
          Print "Temperature" ; it ; " is safe at" ; array( it ) ; " degrees."
      End Select

   Next it

   Sleep

Differences from QB
   * none

See also
   * For...Next
   * Dim
   * Select Case

