* math.c (domain_check): simplified.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24737 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
lann · Sep 2, 2009 · 274fa77 · 274fa77
1 parent dc697b1
commit 274fa77
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 9 deletions.
diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Sep  2 13:47:30 2009  Nobuyoshi Nakada  <[email protected]>
+
+	* math.c (domain_check): simplified.
+
 Wed Sep  2 11:32:24 2009  Koichi Sasada  <[email protected]>
 
 	* gc.c (obj_free): fix to free method table (fix memory leak).

diff --git a/math.c b/math.c
@@ -25,21 +25,18 @@ extern VALUE rb_to_float(VALUE val);
 static void
 domain_check(double x, double y, const char *msg)
 {
-    while(1) {
-	if (errno) {
-	    rb_sys_fail(msg);
-	}
-	if (isnan(y)) {
-	    if (isnan(x)) break;
+    if (!isnan(y)) return;
+    else 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);
 }
 
 static void