diff options
Diffstat (limited to 'lib/stdlib/doc/src/random.xml')
| -rw-r--r-- | lib/stdlib/doc/src/random.xml | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/lib/stdlib/doc/src/random.xml b/lib/stdlib/doc/src/random.xml index 91a4012ce9..fc4f796863 100644 --- a/lib/stdlib/doc/src/random.xml +++ b/lib/stdlib/doc/src/random.xml @@ -48,7 +48,7 @@ tuple of three integers.</p> <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> + example <c>crypto:strong_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> @@ -76,9 +76,15 @@ dictionary, and returns the old state.</p> <p>One easy way of obtaining a unique value to seed with is to:</p> <code type="none"> - 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> +random:seed(erlang:phash2([node()]), + erlang:monotonic_time(), + erlang:unique_integer())</code> + <p>See <seealso marker="erts:erlang#phash2/1"> + erlang:phash2/1</seealso>, <seealso marker="erts:erlang#node/0"> + node/0</seealso>, <seealso marker="erts:erlang#monotonic_time/0"> + erlang:monotonic_time/0</seealso>, and + <seealso marker="erts:erlang#unique_integer/0"> + erlang:unique_integer/0</seealso>) for details.</p> </desc> </func> <func> @@ -142,7 +148,7 @@ <p>The implementation changed in R15. Upgrading to R15 will break applications that expect a specific output for a given seed. The output is still deterministic number series, but different compared to releases - older than R15. The seed <c>{0,0,0}</c> will for example no longer + older than R15. The seed <c>{0,0,0}</c> will, for example, no longer produce a flawed series of only zeros.</p> </section> </erlref> |