Knowledge Base

FIX: CSng Converted to CDbl for String Literals and Variables

Article ID: 127031

Article Last Modified on 10/29/2003

Microsoft Visual Basic 3.0 Professional Edition
Microsoft Visual Basic 3.0 Professional Edition

This article was previously published under Q127031

SYMPTOMS

Code using the function CSng() within Visual Basic is automatically converted to a CDbl by the compiler.

CAUSE

If a string literal, such as 1.1, or a string variable is placed inside of the CSng function, Visual Basic converts the function to CDbl. The following code demonstrates the problem:

Dim S As Single S=CSng("1.1")

When you run a program containing this code, Visual Basic changes it to this code:

   Dim S As Single S=CDbl("1.1")

WORKAROUND

To work around the problem, use another function that operates on the string. Then place this result inside the CSng function. For example, use this:

   S=CSng(Val("100"))

STATUS

This bug was corrected in Microsoft Visual Basic version 4.0 for Windows.

Additional query words: 3.00 buglist3.00 fixlist4.00

Keywords: kbbug kbfix KB127031