* bug#9411: 23.2; Improper integer conversion (rounding?) on data entry in Calc
@ 2011-08-30 21:35 Keith Browne
2011-08-30 22:14 ` Andreas Schwab
2011-09-03 5:40 ` bug#9411: " Paul Eggert
0 siblings, 2 replies; 3+ messages in thread
From: Keith Browne @ 2011-08-30 21:35 UTC (permalink / raw)
To: 9411
M-x calc [RETURN]
90000000000000010 [RETURN]
(that's 9, followed by fourteen 0s, followed by 10)
- Observe that 90000000000000016 appears on the stack, not
90000000000000010.
This appears to be occurring for a bunch of different values, starting
somewhere below 20000000000000000 and running up through
900000000000000000 or higher.
It's occurring whether I type the values by hand, or cut and paste
through a window manager. It's even happening if I enter the value
correctly in a different Emacs buffer and then cut and yank it into the
Calc buffer.
I've tested this on a variety of machines and versions of Emacs. Some
work, some don't. For instance, a powerpc-unknown-linux-gnu machine
running Emacs 23.3.1 is working, while an x86_64-apple-darwin10.8.0
machine running Emacs 23.3.1 is broken.
It could be a problem with the compiler toolchain that built the various
Emacsen. Since identical versions of Emacs are either succeeding or
failing on different machines, it's unlikely to be a regression in Emacs
or in Calc. Could it be that some machines are allowing the conversion
to pass through floating-point and back to int, resulting in a rounding
error?
In GNU Emacs 23.2.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.4)
of 2011-04-04 on crested, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11001000
configured using `configure '--build' 'x86_64-linux-gnu' '--build'
'x86_64-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib'
'--libexecdir=/usr/lib' '--localstatedir=/var/lib'
'--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.2/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.2/leim'
'--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars'
'build_alias=x86_64-linux-gnu' 'CFLAGS=-DDEBIAN -g -O2' 'LDFLAGS=-g'
'CPPFLAGS=''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_CA.UTF-8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
Major mode: Emacs-Lisp
Minor modes in effect:
eldoc-mode: t
paredit-mode: t
show-paren-mode: t
display-time-mode: t
shell-dirtrack-mode: t
nxhtml-global-minor-mode: t
tooltip-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-encryption-mode: t
auto-compression-mode: t
size-indication-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
C-p C-n C-r e x p r - d a t a C-a C-n C-p C-f C-f C-f
C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f
C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f
C-f C-f C-s m a t h - e x p r - d a t a C-a C-n C-p
C-s m a t h - e x p r - d a t a C-a C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-p <help-echo>
C-x o C-n C-a C-n C-n C-n C-n C-n C-n C-n C-p C-p C-p
C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p
C-p C-x o C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p
C-p C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-x o C-p C-p C-p C-p C-p C-p C-p C-p <help-echo> C-x
o C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p
C-s m a t h - e x p r - d a t a C-s C-r C-a C-n C-n
C-n C-x o C-v C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-p C-p C-p C-p C-p C-p C-p C-p C-p C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-v C-v <escape> x r e p l <backspace>
o r t - e m a c s - b u g <return>
Recent messages:
Mark set [3 times]
Entering debugger...
(90000000000000016)
Undo! [6 times]
Mark set
Mark activated
Mark set
(90000000000000016)
Entering debugger...
Mark saved where search started [4 times]
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calc-menu calc calc-loaddefs calc-macs vc-git imenu python-mode
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time cus-start cus-load color-theme sendmail reporter slime-tramp
tramp-imap assoc tramp-gw tramp-gvfs zeroconf dbus xml tramp-fish
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netrc shell password-cache format-spec tramp-compat trampver
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ispell nxhtml-menu xhtml-help flymake-js flymake-php flymake compile
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^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-09-03 5:40 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-08-30 21:35 bug#9411: 23.2; Improper integer conversion (rounding?) on data entry in Calc Keith Browne
2011-08-30 22:14 ` Andreas Schwab
2011-09-03 5:40 ` bug#9411: " Paul Eggert
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