diff options
Diffstat (limited to 'INSTALL')
| -rw-r--r-- | INSTALL | 12 |
1 files changed, 6 insertions, 6 deletions
@@ -849,12 +849,12 @@ to create such degenerate hashes. Because of this feature the keys(), values(), and each() functions may return the hash elements in different order between different -runs of Perl even with the same data. One can still revert to the old -repeatable order by setting the environment variable PERL_HASH_SEED, -see L<perlrun>. Another option is to add -DUSE_HASH_SEED_EXPLICIT to -the compilation flags, in which case one has to explicitly set the -PERL_HASH_SEED environment variable to enable the security feature, -or -DNO_HASH_SEED to completely disable the feature. +runs of Perl even with the same data. The additional randomisation +is enabled if the environment variable PERL_HASH_SEED is set, see +perlrun for details. + +One make the randomisation default by adding -DUSE_HASH_SEED to the +compilation flags, or completely disable it by adding -DNO_HASH_SEED. B<Perl has never guaranteed any ordering of the hash keys>, and the ordering has already changed several times during the lifetime of |