From 6f14520a0606c03514fa2ab99caedacedac16e92 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 2 Sep 2009 04:47:39 +0000
Subject: * math.c (domain_check): simplified.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@24737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 math.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

(limited to 'math.c')

diff --git a/math.c b/math.c
index 9a6d459797..d8a0230fc5 100644
--- a/math.c
+++ b/math.c
@@ -29,20 +29,17 @@ domain_check(x, msg)
     double x;
     const char *msg;
 {
-    while(1) {
-	if (errno) {
-	    rb_sys_fail(msg);
-	}
-	if (isnan(x)) {
+    if (!isnan(x)) return;
+    else {
+	if (!errno) {
 #if defined(EDOM)
 	    errno = EDOM;
-#elif defined(ERANGE)
+#else
 	    errno = ERANGE;
 #endif
-	    continue;
 	}
-	break;
     }
+    rb_sys_fail(msg);
 }
 
 
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