Bug#811503: gnome-calculator: Wrong result

[Evangelos Skarmoutsos]

Package: gnome-calculator
Version: 3.18.2-1
Severity: important

Dear Maintainer,

Doing a simple integer multiplication gave wrong result.

I was trying to multiply 364*2 using arithmetic keyboard (at the righ side of a
normal keyboard).
Accidentally, after the "2", I have pressed "3" and "Enter" almost concurently.
So the multiplication was 364*23 and the result was 728 (which is wrong).

Later trying 364*2 gave 728 (correct).
Also later,  364*23 resulted to 8372 (correct).

I can not reproduce the error. Probably a timing bug.

A screenshot was taken, which you probably do not need.

I consider this bug important, because it affects the core functionality, which
is to make correct calculations.



-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=el_GR.UTF-8, LC_CTYPE=el_GR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gnome-calculator depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.24.0-2
ii  libatk1.0-0                                  2.18.0-1
ii  libc6                                        2.21-6
ii  libcairo-gobject2                            1.14.6-1
ii  libcairo2                                    1.14.6-1
ii  libgdk-pixbuf2.0-0                           2.32.3-1
ii  libglib2.0-0                                 2.46.2-3
ii  libgmp10                                     2:6.1.0+dfsg-2
ii  libgtk-3-0                                   3.18.6-1
ii  libgtksourceview-3.0-1                       3.18.1-1
ii  libmpfr4                                     3.1.3-2
ii  libpango-1.0-0                               1.38.1-1
ii  libpangocairo-1.0-0                          1.38.1-1
ii  libxml2                                      2.9.3+dfsg1-1

Versions of packages gnome-calculator recommends:
ii  gvfs  1.26.2-1
ii  yelp  3.16.1-1

gnome-calculator suggests no packages.