May 1995
Beginner
508 pages
16h 14m
English
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Name
CInt Function
Syntax
CInt(expression)-
expression Use: Required
Data Subtype: Numeric or String
The range of expression is -32,768 to 32,767; fractions are rounded.
Return Value
expression cast as a Variant with an
integer subtype.
Description
Converts expression to a Variant with a
subtype of integer; any fractional portion of
expression is rounded.
Rules at a Glance
expressionmust evaluate to a numeric value; otherwise, a type mismatch error is generated.If the value of
expressionis outside the range of the Integer datatype, an overflow error is generated.When the fractional part of
expressionis exactly 0.5,CIntalways rounds to the nearest even number. For example, 0.5 rounds to 0, and 1.5 rounds to 2.
Example
<HTML>
<HEAD>
<SCRIPT LANGUAGE="VBScript">
Option Explicit
Sub cmdAdd_OnClick( )
Dim iSum, sNum1, sNum2
sNum1 = Window.Document.frmAdd.txtText1.Value
sNum2 = Window.Document.frmAdd.txtText2.Value
If IsNumeric(sNum1) And IsNumeric(sNum2) Then
iSum = CInt(sNum1) + CInt(sNum2)
Alert "The sum is: " & iSum
Else
Alert "The values you enter in the text boxes must be numeric."
End If
End Sub
</SCRIPT>
</HEAD>
<BODY>
<FORM NAME="frmAdd">
<INPUT TYPE="text" NAME="txtText1"><BR>
<INPUT TYPE="text" NAME="txtText2"><BR>
<INPUT TYPE="button" NAME="cmdAdd" VALUE="Sum">
</FORM>
</BODY>
</HTML>Programming Tips & Gotchas
Use
IsNumericto test whetherexpressionevaluates to a number before performing the conversion.CIntdiffers from theFixandIntfunctions, which truncate, rather than round, ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.