diff options
Diffstat (limited to 'lib/stdlib/doc/src/random.xml')
| -rw-r--r-- | lib/stdlib/doc/src/random.xml | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/lib/stdlib/doc/src/random.xml b/lib/stdlib/doc/src/random.xml index e001058e19..e475cda23d 100644 --- a/lib/stdlib/doc/src/random.xml +++ b/lib/stdlib/doc/src/random.xml @@ -48,6 +48,9 @@ <p>It should be noted that this random number generator is not cryptographically strong. If a strong cryptographic random number generator is needed for example <c>crypto:rand_bytes/1</c> could be used instead.</p> + <note><p>The new and improved <seealso + marker="stdlib:rand">rand</seealso> module should be used + instead of this module.</p></note> </description> <datatypes> <datatype> @@ -70,12 +73,11 @@ <desc> <p>Seeds random number generation with integer values in the process dictionary, and returns the old state.</p> - <p>One way of obtaining a seed is to use the BIF <c>now/0</c>:</p> + <p>One easy way of obtaining a unique value to seed with is to:</p> <code type="none"> - ... - {A1,A2,A3} = now(), - random:seed(A1, A2, A3), - ...</code> + random:seed(<seealso marker="erts:erlang#phash2/1">erlang:phash2</seealso>([<seealso marker="erts:erlang#node/0">node()</seealso>]), + <seealso marker="erts:erlang#monotonic_time/0">erlang:monotonic_time()</seealso>, + <seealso marker="erts:erlang#unique_integer/0">erlang:unique_integer()</seealso>)</code> </desc> </func> <func> |