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-
- If you've been having any difficulty with the PRINT USING statement,
- it may be because the definition of one format character has changed
- since Turbo Basic #1.0/1.1. In Turbo Basic, putting a minus sign at
- the beginning of a numeric format string (PRINT USING "-##.##";-99)
- causes a negative number to be printed with a leading minus sign
- (-99.00).
-
- This was, unfortunately, a bug, and a difference from the original
- definition in IBM's BASICA. While the bug has been fixed in
- PowerBASIC, the description of PRINT USING in the PowerBASIC manual
- has not, leading you to believe that the buggy operation in Turbo
- Basic is the correct operation in PowerBASIC. Sorry we blew it on the
- manual, but at least PRINT USING now works correctly in PowerBASIC.
- Luckily, it's VERY easy to correct! If you encounter this problem,
- just change the leading minus sign to a pound sign, and everything
- will work as it did before in Turbo Basic. For example:
-
- PRINT USING "-##.##"; n becomes PRINT USING "###.##"; n
-
- That's all there is to it. There are several errors in the
- description of the PRINT USING statement on page 225 of the Reference
- Guide. The first paragraph, "Signed format," should read:
-
- "A plus sign at the beginning of the format string causes the number's
- sign (+ or -) to be printed before the number. A minus sign at the
- beginning of the format string does not have this effect; it is
- treated as a literal character and will always be displayed,
- regardless of the sign of the number. If you place a plus sign at the
- end of the format string, the number's sign is printed immediately
- following the number. A minus sign at the end of the format string
- causes a trailing space to be printed if the number is positive, or a
- trailing minus sign if the number is negative."
-
- In the box containing example values, format strings, and output, the
- last two lines (value = 99 and value = -99) should be replaced with:
-
- 99 ##.##- 99.00 (1 trailing space)
- -99 ##.##- 99.00- (no trailing spaces)
-
- Kurt Inman (PowerBASIC R&D)