From 3ca0948f68d1055cd980992dcb68deced0f4d704 Mon Sep 17 00:00:00 2001
From: shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 19 Jan 2018 01:45:36 +0000
Subject: INFINITY is float. That of double is HUGE_VAL.

It seems HUGE_VAL is already used. Why not eliminate INTINITY.
NAN is also float. That of double is called nan(). This is also
fixed.

Signed-off-by: Urabe, Shyouhei <shyouhei@ruby-lang.org>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 rational.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'rational.c')

diff --git a/rational.c b/rational.c
index 0617fd7327..c1c1081446 100644
--- a/rational.c
+++ b/rational.c
@@ -1072,7 +1072,12 @@ nurat_expt(VALUE self, VALUE other)
 		den = ONE;
 	    }
 	    if (RB_FLOAT_TYPE_P(num)) { /* infinity due to overflow */
-		if (RB_FLOAT_TYPE_P(den)) return DBL2NUM(NAN);
+		if (RB_FLOAT_TYPE_P(den))
+#ifdef HAVE_NANF
+		    return DBL2NUM(nan(""));
+#else
+		    return DBL2NUM((double)NAN);
+#endif
 		return num;
 	    }
 	    if (RB_FLOAT_TYPE_P(den)) { /* infinity due to overflow */
-- 
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