Article ID: 51075
Article Last Modified on 11/21/2006
This article was previously published under Q51075
SYMPTOMS
VARPTR$ can be used only with simple variables and with arrays of variable-length strings. Attempting to use the VARPTR$ function on a $DYNAMIC array is a programming error. However, the QB.EXE versions 4.00, 4.00b, and 4.50 editors will not flag this as an error and will interpret and run programs that use VARPTR$ on $DYNAMIC arrays. The BC.EXE compiler Versions 4.00, 4.00b, and 4.50 correctly flag this as an error and give the error message "Dynamic array element illegal."
This problem has been corrected in QBX.EXE, which comes with Microsoft Basic Compiler Version 7.00 (fixlist7.00).
MORE INFORMATION
The VARPTR$ function is used with both the PLAY and the DRAW statements to return the string representation of the address of a variable. The following code example demonstrates the problem in the QuickBasic editor.
Code Example
REM $DYNAMIC
CLS
TYPE aa
a AS INTEGER
END TYPE
REDIM a(50) AS aa
a(1).a = 10
PRINT VARPTR$(a(1).a)
END
Additional query words: QuickBas BasicCom buglist4.00 buglist4.00b buglist4.50 B_BasicCom
Keywords: KB51075
