Article ID	1237
Article Title	DEFECT: Using comments // in DataFlex code strings
Article URL	http://www.dataaccess.com/KBasePublic/KBPrint.asp?ArticleID=1237
KBase Category	Visual DataFlex
Date Created	12/18/2000
Last Edit Date	08/08/2001

Article Text
PROBLEM:
- I am using a double-forward slash in a string variable in my DataFlex code, but the compiler won't compile. I always get the error message "ERROR 4345: Type check error" or similar errors.


EXPLANATION:
This is a Visual DataFlex/DataFlex compiler problem. The problem is that a double forward slash (//) is the comment marker in DataFlex code. Unfortunately, the compiler is unable to discern when to interpret // as a comment or just a plain string.

This problem does not affect comments in strings at runtime, such as text in database fields, only DataFlex programming code.


SOLUTION:
This defect is fixed in Dataflex 3.2 and Visual DataFlex 7 and will be fixed in WebApp Server 3.x.


WORKAROUND:
Do not use double forward slashes in a string or string variable. If you must use double forward slashes in a string, such as when typing a Web URL, concatenate the string from multiple strings.


EXAMPLE:

INCORRECT:
string sTmp
move "The URL of Data Access Worldwide's Web site is http://www.dataaccess.com ." to sTmp


CORRECT:
string sTmp
move ("The URL of Data Access Worldwide's Web site is http:/"+"/www.dataaccess.com .") to sTmp

ALSO CORRECT:
string sTmp
move "The URL of Data Access Worldwide's Web site is http:/" to sTmp
move (append(sTmp,"/www.dataaccess.com .")) to sTmp



Links Related to this Article
DAW Knowledge Base article 1236: DEFECT: Using exclamation point ! in DataFlex code strings

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