From chris@onthe.net.au

This is a bug report for perl from chris@​onthe.net.au,
generated with the help of perlbug 1.26 running under perl 5.00503.

$a = 19040 / 100;
$b = 19680 / 100;
$c = 38720 / 100;

print "\nThese should be equivalent and equal to zero​:\n\n";

print "\t", '$a + $b - $c = ', $a + $b - $c, "\n";
print "\t", '$a + ($b - $c) = ', $a + ($b - $c), "\n";

Site configuration information for perl 5.00503​:

Configured by root at Mon Aug 30 23​:08​:56 EDT 1999.

Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration​:
  Platform​:
  osname=linux, osvers=2.2.5-22smp, archname=i386-linux
  uname='linux porky.devel.redhat.com 2.2.5-22smp #1 smp wed jun 2 09​:11​:51 edt 1999 i686 unknown '
  hint=recommended, useposix=true, d_sigaction=define
  usethreads=undef useperlio=undef d_sfio=undef
  Compiler​:
  cc='cc', optimize='-O2', gccversion=egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)
  cppflags='-Dbool=char -DHAS_BOOL -I/usr/local/include'
  ccflags ='-Dbool=char -DHAS_BOOL -I/usr/local/include'
  stdchar='char', d_stdstdio=undef, usevfork=false
  intsize=4, longsize=4, ptrsize=4, doublesize=8
  d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
  alignbytes=4, usemymalloc=n, prototype=define
  Linker and Libraries​:
  ld='cc', ldflags =' -L/usr/local/lib'
  libpth=/usr/local/lib /lib /usr/lib
  libs=-lnsl -ldl -lm -lc -lposix -lcrypt
  libc=, so=so, useshrplib=false, libperl=libperl.a
  Dynamic Linking​:
  dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
  cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'

Locally applied patches​:
 

@​INC for perl 5.00503​:
  /usr/lib/perl5/5.00503/i386-linux
  /usr/lib/perl5/5.00503
  /usr/lib/perl5/site_perl/5.005/i386-linux
  /usr/lib/perl5/site_perl/5.005
  .

Environment for perl 5.00503​:
  HOME=/home/staff/chris
  LANG=en_US
  LANGUAGE (unset)
  LC_ALL=en_US
  LD_LIBRARY_PATH (unset)
  LOGDIR (unset)
  PATH=/home/staff/chris/bin​:/usr/local/bin​:/usr/local/sop/bin​:/bin​:/usr/bin​:/usr/local/pgsql/bin​:/sbin​:/usr/sbin​:/usr/X11R6/bin
  PERL_BADLANG (unset)
  SHELL=/bin/bash

From [Unknown Contact. See original ticket]

Chris Dunlop (lists.p5p)​:

print "\nThese should be equivalent and equal to zero​:\n\n";
print "\t", '$a + $b - $c = ', $a + $b - $c, "\n";
print "\t", '$a + ($b - $c) = ', $a + ($b - $c), "\n";

Should they really? perldoc -q decimal

--
Gosh that takes me back... or is it forward? That's the trouble with
time travel, you never can tell."
  -- Doctor Who, "Androids of Tara"