From b2b33db3552e1c99bf9842a36fa30c064fc5a5d6 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 7 Sep 2006 16:35:59 +0000
Subject: * numeric.c (fix_plus): addition in Fixnum will never overflow  
 long.  a patch from Ondrej Bilka <neleai at seznam.cz>.   [ruby-core:08794]

* numeric.c (fix_minus): ditto.

* bignum.c (rb_big_pow): eagerly truncate resulting bignum.
  [ruby-core:08794]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@10880 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 numeric.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

(limited to 'numeric.c')

diff --git a/numeric.c b/numeric.c
index c5e9893c03..3ae1c283d5 100644
--- a/numeric.c
+++ b/numeric.c
@@ -1982,11 +1982,8 @@ fix_plus(x, y)
 	a = FIX2LONG(x);
 	b = FIX2LONG(y);
 	c = a + b;
-	r = LONG2FIX(c);
+	r = LONG2NUM(c);
 
-	if (FIX2LONG(r) != c) {
-	    r = rb_big_plus(rb_int2big(a), rb_int2big(b));
-	}
 	return r;
     }
     if (TYPE(y) == T_FLOAT) {
@@ -2015,11 +2012,8 @@ fix_minus(x, y)
 	a = FIX2LONG(x);
 	b = FIX2LONG(y);
 	c = a - b;
-	r = LONG2FIX(c);
+	r = LONG2NUM(c);
 
-	if (FIX2LONG(r) != c) {
-	    r = rb_big_minus(rb_int2big(a), rb_int2big(b));
-	}
 	return r;
     }
     if (TYPE(y) == T_FLOAT) {
-- 
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