Re^3: random behaviour of perl hashes

I get this running ActiveState's 5.8.8 (build 817):

Case 1

salt    shaken
onions    diced
pepper    fresh
paprika    spicy
potatos    diced

Case 2

salt    shaken
onions    diced
pepper    fresh
paprika    spicy
potatos    diced

Case 3

salt    shaken
onions    diced
pepper    fresh
paprika    spicy
potatos    diced
[download]

I suspect that it has to do with the details of the implementation of the hashing algorithm, which may differ from system to system.

My interpretation of the "random ordering" in the perldocs is simply that "we refuse to guarantee the order of the keys for a hash".

emc

Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein

Comment on Re^3: random behaviour of perl hashes Download Code

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Re^4: random behaviour of perl hashes by liz (Monsignor) on Aug 28, 2006 at 20:57 UTC
According to "perlrun": The default behaviour is to randomise unless the PERL_HASH_SEED is set. If Perl has been compiled with "-DUSE_HASH_SEED_EXPLICIT", the default behaviour is not to randomise unless the PERL_HASH_SEED is set. perhaps ActiveState Perl is compiled with -DUSE_HASH_SEED_EXPLICIT ? `perl -V` [download] might tell you whether that is the case. Liz	[reply] [d/l]
Re^5: random behaviour of perl hashes by swampyankee (Parson) on Aug 28, 2006 at 21:13 UTC
perl -v returns (among many other data): `-GF -W3 -MD -Zi-DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DNO_HASH_SEED -DUSE_SITECUSTOMIZE -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX` It would seem not, unless `-DNO_HASH_SEED` has a similar effect. emc Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. Albert Einstein	[reply]