Incorrect formatting of real number

[JohnReppy]

Version

110.85

Operating System

• All
• Linux
• macOS
• Windows
• Other Unix

OS Version

No response

Processor

No response

Component

Basis Library

Severity

Cosmetic

Description of the problem

Formatting of a large integer represented as a real
number adds a fractional part. This bug turns up in
the Basis regression tests.
Additional comments:
This bug may be a problem with the handling of real literals,
since I've observed the following:

• Real.fmt (StringCvt.FIX NONE) (91827364509182.0 * 10.0);
  val it = "918273645091821.000000" : string

Transcript

- Real.fmt (StringCvt.FIX NONE) 91827364509182.0;
val it = "91827364509182.100000" : string

Expected Behavior

No response

Steps to Reproduce

Real.fmt (StringCvt.FIX NONE) 91827364509182.0;

Additional Information

No response

Email address

jhr@cs.uchicago.edu

Comments from smlnj-gforge

Original smlnj-gforge bug number 221

Submitted via web form by John Reppy jhr@cs.uchicago.edu on 2019-05-03 at 16:36:00

Keywords: basis, reals

[JohnReppy]

Fixed for 110.99.5 as part of the complete rewrite of the string to/from real conversion code.