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* math.c (domain_check): ignore errno if y is inf.

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r26335 is because NetBSD 5.0's asin and acos returns
  0.0 with errno EDOM. But it breaks Linux whose gamma returns inf
  with errno ERANGE on.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26397 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2010-01-25 02:51:16 +00:00
parent 68e111176f
commit 0fdbdfbbda
2 changed files with 12 additions and 1 deletions
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8
ChangeLog
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@ -1,3 +1,10 @@
Mon Jan 25 11:45:47 2010 NARUSE, Yui <naruse@ruby-lang.org>
* math.c (domain_check): ignore errno if y is inf.
r26335 is because NetBSD 5.0's asin and acos returns
0.0 with errno EDOM. But it breaks Linux whose gamma returns inf
with errno ERANGE on.
Sun Jan 24 22:48:05 2010 Koichi Sasada <ko1@atdot.net>
* eval.c, vm.c, vm_eval.c, vm_insnhelper.c: fix issues about
@ -228,6 +235,7 @@ Sun Jan 17 22:48:44 2010 Akinori MUSHA <knu@iDaemons.org>
Sun Jan 17 19:24:25 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* math.c (domain_check): check errno first.
NetBSD 5.0's asin and acos returns 0.0 with errno EDOM.
Sun Jan 17 14:24:35 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>

5
math.c
View file

@ -27,7 +27,10 @@ extern VALUE rb_to_float(VALUE val);
static void
domain_check(double x, double y, const char *msg)
{
if (!errno) {
if (errno) {
if (isinf(y)) return;
}
else {
if (!isnan(y)) return;
else if (isnan(x)) return;
else {