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array #1181

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p5pRT opened this issue Feb 15, 2000 · 2 comments
Closed

array #1181

p5pRT opened this issue Feb 15, 2000 · 2 comments

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@p5pRT
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@p5pRT p5pRT commented Feb 15, 2000

Migrated from rt.perl.org#2151 (status was 'resolved')

Searchable as RT2151$

@p5pRT
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@p5pRT p5pRT commented Feb 15, 2000

From buhler@ravel.magnet.fsu.edu

[Please enter your report here]

for($k=1;$k<=12;$k++){
for($j=1;$j<=12;$j++){
@​a[$k.$j] = $k;
}}
for($n=1;$n<=12;$n++){
for($m=1;$m<=12;$m++){
print "a = @​a[$n.$m]\n";
}}

A simple program like this over-writes the matrix element [1.11] with
[11.1] but only for matrices larger than 10X10.

Site configuration information for perl 5.003​:

Configured by richards at Wed Oct 2 15​:35​:05 EDT 1996.

Summary of my perl5 (5.0 patchlevel 3 subversion 0) configuration​:
  Platform​:
  osname=dec_osf, osver=3.0, archname=alpha-dec_osf
  uname='osf1 chopin.magnet.fsu.edu v3.0 358 alpha '
  hint=previous, useposix=true, d_sigaction=define
  Compiler​:
  cc='gcc', optimize=' ', gccversion=2.6.3
  cppflags=''
  ccflags =''
  stdchar='unsigned char', d_stdstdio=define, usevfork=false
  voidflags=15, castflags=0, d_casti32=define, d_castneg=define
  intsize=4, alignbytes=8, usemymalloc=y, randbits=15
  Linker and Libraries​:
  ld='ld', ldflags =' -L/usr/local/lib'
  libpth=/usr/local/lib /usr/shlib /lib /usr/lib /usr/ccs/lib
  libs=-ldbm -ldb -lm -lc -lbsd -lPW
  libc=/usr/shlib/libc.so, so=so
  Dynamic Linking​:
  dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=, ccdlflags=' '
  cccdlflags='-fpic', lddlflags='-shared -expect_unresolved "*" -s -hidden -L/usr/local/lib'

@p5pRT
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@p5pRT p5pRT commented Feb 15, 2000

From @tamias

On Tue, Feb 15, 2000 at 01​:08​:09PM -0500, Charles Buhler wrote​:

This is a bug report for perl from buhler@​magnet.fsu.edu,
generated with the help of perlbug 1.13 running under perl 5.003.

[Please enter your report here]

for($k=1;$k<=12;$k++){
for($j=1;$j<=12;$j++){
@​a[$k.$j] = $k;
}}
for($n=1;$n<=12;$n++){
for($m=1;$m<=12;$m++){
print "a = @​a[$n.$m]\n";
}}

A simple program like this over-writes the matrix element [1.11] with
[11.1] but only for matrices larger than 10X10.

What matrix element? Those are linear arrays, not matrices.
. is the concatenation operator; '1' . '11' and '11' . '1' are of course
the same.

RTFM​: perlop (for the concatenation operator), perldata (for arrays),
perlreftut, perlref, perllol, perldsc

BTW, perl5.003 is several years old. Upgrading to a more recent version is
recommended.

Ronald

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