From 80757f9491c72ee262a5910e0b3b02e95b1e5f2a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Fri, 4 Dec 2015 12:15:40 +0100 Subject: Use 'rand' instead of the obsolete 'random' module In most cases, we don't have to seed the random number generator, as the rand:uniform/1 takes care about that itself. --- lib/compiler/src/rec_env.erl | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'lib/compiler') diff --git a/lib/compiler/src/rec_env.erl b/lib/compiler/src/rec_env.erl index 0e9e12d1ad..5a4a870769 100644 --- a/lib/compiler/src/rec_env.erl +++ b/lib/compiler/src/rec_env.erl @@ -598,7 +598,16 @@ start_range(Env) -> %% (pseudo-)randomly distributed over the range. generate(_N, Range) -> - random:uniform(Range). % works well + %% We must use the same sequence of random variables to ensure + %% that two compilations of the same source code generates the + %% same BEAM code. + case rand:export_seed() of + undefined -> + rand:seed(exsplus, {1,42,2053}); + _ -> + ok + end, + rand:uniform(Range). % works well %% ===================================================================== -- cgit v1.2.3