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authorSverker Eriksson <[email protected]>2015-09-02 15:43:57 +0200
committerSverker Eriksson <[email protected]>2015-09-02 15:43:57 +0200
commit6e75676652d87d78041a9db11b088b33ad7ef672 (patch)
treebdfab5e00f4059950c927a5ca748efb9965c782c /lib/stdlib/doc/src/random.xml
parent0c52e3c18da16dbb896871865b71093b8c5617c4 (diff)
parent3af9e6ef9bd6a9e9faf0e5bf683f4f1c5c0c0ca9 (diff)
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Merge branch 'maint' into sverk/trace-process_dump-matchstate
Conflicts: erts/emulator/beam/erl_printf_term.c erts/emulator/beam/erl_term.c erts/emulator/beam/utils.c
Diffstat (limited to 'lib/stdlib/doc/src/random.xml')
-rw-r--r--lib/stdlib/doc/src/random.xml33
1 files changed, 18 insertions, 15 deletions
diff --git a/lib/stdlib/doc/src/random.xml b/lib/stdlib/doc/src/random.xml
index e001058e19..91a4012ce9 100644
--- a/lib/stdlib/doc/src/random.xml
+++ b/lib/stdlib/doc/src/random.xml
@@ -8,16 +8,17 @@
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
- The contents of this file are subject to the Erlang Public License,
- Version 1.1, (the "License"); you may not use this file except in
- compliance with the License. You should have received a copy of the
- Erlang Public License along with this software. If not, it can be
- retrieved online at http://www.erlang.org/.
-
- Software distributed under the License is distributed on an "AS IS"
- basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- the License for the specific language governing rights and limitations
- under the License.
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
</legalnotice>
@@ -48,6 +49,9 @@
<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 +74,11 @@
<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>