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author | Rafael Garcia-Suarez <rgarciasuarez@gmail.com> | 2007-07-19 07:44:19 +0000 |
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committer | Rafael Garcia-Suarez <rgarciasuarez@gmail.com> | 2007-07-19 07:44:19 +0000 |
commit | 09885f8292459868adaef452a613def47a463f54 (patch) | |
tree | 582fb7a99108d102e34a3548ba6738226093ede4 /pod | |
parent | fc9bd8c71ebb163faf8925e766d9e2f0a418d0ab (diff) | |
download | perl-09885f8292459868adaef452a613def47a463f54.tar.gz |
Suggestion and fixes to the hash seed docs by Paul Johnson
p4raw-id: //depot/perl@31631
Diffstat (limited to 'pod')
-rw-r--r-- | pod/perlrun.pod | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/pod/perlrun.pod b/pod/perlrun.pod index 73850f3619..06649b815e 100644 --- a/pod/perlrun.pod +++ b/pod/perlrun.pod @@ -1258,11 +1258,11 @@ PERL_ENCODING environment variable is consulted for an encoding name. =item PERL_HASH_SEED X<PERL_HASH_SEED> -(Since Perl 5.8.1.) Used to randomise Perl's internal hash function. +(Since Perl 5.8.1.) Used to randomise perl's internal hash function. To emulate the pre-5.8.1 behaviour, set to an integer (zero means exactly the same order as 5.8.0). "Pre-5.8.1" means, among other -things, that hash keys not always be ordered the same between different -runs of Perl. +things, that hash keys will always have the same ordering between +different runs of perl. Most hashes return elements in the same order as Perl 5.8.0 by default. On a hash by hash basis, if pathological data is detected during a hash @@ -1270,10 +1270,10 @@ key insertion, then that hash will switch to an alternative random hash seed. The default behaviour is to randomise unless the PERL_HASH_SEED is set. -If Perl has been compiled with C<-DUSE_HASH_SEED_EXPLICIT>, the default +If perl has been compiled with C<-DUSE_HASH_SEED_EXPLICIT>, the default behaviour is B<not> to randomise unless the PERL_HASH_SEED is set. -If PERL_HASH_SEED is unset or set to a non-numeric string, Perl uses +If PERL_HASH_SEED is unset or set to a non-numeric string, perl uses the pseudorandom seed supplied by the operating system and libraries. B<Please note that the hash seed is sensitive information>. Hashes are |