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authorBjörn Gustavsson <[email protected]>2015-12-04 12:15:40 +0100
committerBjörn Gustavsson <[email protected]>2015-12-11 14:37:46 +0100
commit80757f9491c72ee262a5910e0b3b02e95b1e5f2a (patch)
tree1019a6da73ac28571a0b51727ed6fa33daf11522 /lib/syntax_tools/src/erl_syntax_lib.erl
parentdee396ffd32dcd68c47cab983c75ba32f921b9db (diff)
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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.
Diffstat (limited to 'lib/syntax_tools/src/erl_syntax_lib.erl')
-rw-r--r--lib/syntax_tools/src/erl_syntax_lib.erl12
1 files changed, 9 insertions, 3 deletions
diff --git a/lib/syntax_tools/src/erl_syntax_lib.erl b/lib/syntax_tools/src/erl_syntax_lib.erl
index 5b5b18d15b..58c4cc5244 100644
--- a/lib/syntax_tools/src/erl_syntax_lib.erl
+++ b/lib/syntax_tools/src/erl_syntax_lib.erl
@@ -359,9 +359,9 @@ new_variable_name(S) ->
%% within a reasonably small range relative to the number of elements in
%% the set.
%%
-%% This function uses the module `random' to generate new
+%% This function uses the module `rand' to generate new
%% keys. The seed it uses may be initialized by calling
-%% `random:seed/0' or `random:seed/3' before this
+%% `rand:seed/1' or `rand:seed/2' before this
%% function is first called.
%%
%% @see new_variable_name/1
@@ -404,7 +404,13 @@ start_range(S) ->
%% order, but (pseudo-)randomly distributed over the range.
generate(_Key, Range) ->
- random:uniform(Range). % works well
+ _ = case rand:export_seed() of
+ undefined ->
+ rand:seed(exsplus, {753,8,73});
+ _ ->
+ ok
+ end,
+ rand:uniform(Range). % works well
%% =====================================================================