| value = a number, or a string which represents a number |
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Converts the value to the nearest integer.
This is the same as Blitz's automatic type conversion. So the two commands... n = value n = Int( value ) ... do exactly the same thing when n is an integer variable. If Int is applied to a string it converts as much as possible: Int( "10" ) ........ result is 10 Int( "3.7" ) ....... result is 3, stops at "." which can't be part of an integer Int( "junk3" ) .... result is 0, stops at "j" Int converts floating point numbers by rounding to the nearest integer. NOTE: This is not the traditional meaning of Int in Basic. What about numbers exactly halfway between integers? The rounding is to the nearest even integer: Int( 2.5 ) ... produces 2 Int( 3.5 ) ... produces 4 See also Floor and Ceil for other types of rounding. |
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; Ceil / Floor / Int example, three kinds of rounding.
; Move mouse. Escape quits. Graphics 640, 480 Const KEY_ESC = 1 SetBuffer BackBuffer() Origin 320, 240 MoveMouse 320, 240 : HidePointer While Not KeyDown( KEY_ESC ) Cls my = MouseY() - 240 Color 100, 100, 0 Line -320, my, 319, my DrawNumberLine y# = Float( -my ) / 32 Text 100, 50, " y = " + y Text 100, 70, " Ceil( y ) = " + Ceil( y ) Text 100, 90, " Floor( y ) = " + Floor( y ) Text 100, 110, " Int( y ) = " + Int( y ) Flip Wend End Function DrawNumberLine( ) ; vertical line with numeric labels Color 255, 255, 255 Line 0, -240, 0, 239 For n = -7 To 7 yn = -32 * n Line -2, yn, 2, yn Text -30, yn - 6, RSet( n, 2 ) Next End Function |