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Q61406: NOFLTIN.OBJ: Hex Numbers Not Allowed with INPUT, READ, or VAL

Article: Q61406
Product(s): See article
Version(s): 7.00 7.10 | 7.00 7.10
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | SR# S900409-55 | mspl13_basic
Last Modified: 21-SEP-1990

When you LINK the stub file NOFLTIN.OBJ into a program compiled with
the /O switch, or into a custom run-time module built with
BUILDRTM.EXE, the numeric parsing code will be replaced with an
integer-only version.

If you link with NOFLTIN.OBJ, all numbers used by INPUT, READ, and VAL
must be within the range of legal long integers.

Although it seems that a number represented in hexadecimal should fall
into the category of "legal long integers," it does not. A program
that INPUTs, READs, or uses the VAL function on a hexadecimally
represented integer will either generate an error or return incorrect
results. Hexadecimal number parsing is also eliminated with the
NOFLTIN.OBJ stub file.

This information applies to Microsoft BASIC Professional Development
System (PDS) versions 7.00 and 7.10 for MS-DOS and MS OS/2.

The following is an explanation of what happens when a program linked
with the NOFLTIN.OBJ stub file uses either the INPUT, READ, or VAL
commands on a hexadecimal number:

   INPUT - returns a "Redo from start"
   READ  - returns "Syntax error in module <module name>"
   VAL   - returns a value of 0

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