From fc788eaa37994ca914e65add2d2f4c9577c80611 Mon Sep 17 00:00:00 2001
From: naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 29 Dec 2009 07:05:39 +0000
Subject: Add Float::INFINITY and Float::NAN.

* numeric.c (Init_Numeric): Add Float::INFINITY and Float::NAN.
  [ruby-dev:1657] [ruby-dev:4760] [ruby-list:7023] [ruby-list:46690]
  [ruby-core:26632] [ruby-talk:41352] [ruby-talk:203333]

* include/ruby/defines.h (INFINITY): defined.

* include/ruby/defines.h (NAN): defined.

* include/ruby/util.h (ruby_div0): removed.

* numeric.c (fix_pow): use INFINITY and NAN instead of ruby_div0(1.0).

* marshal.c (r_object0): ditto.

* bignum.c (big_fdiv): ditto.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@26197 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 include/ruby/defines.h | 14 ++++++++++++++
 include/ruby/util.h    |  6 ------
 2 files changed, 14 insertions(+), 6 deletions(-)

(limited to 'include/ruby')

diff --git a/include/ruby/defines.h b/include/ruby/defines.h
index 70b168580..a81aef841 100644
--- a/include/ruby/defines.h
+++ b/include/ruby/defines.h
@@ -99,6 +99,20 @@ void xfree(void*);
 # define BDIGIT_DBL_SIGNED long
 #endif
 
+#ifdef INFINITY
+# define HAVE_INFINITY
+#else
+extern const unsigned char rb_infinity[];
+# define INFINITY (*(double *)rb_infinity)
+#endif
+
+#ifdef NAN
+# define HAVE_NAN
+#else
+extern const unsigned char rb_nan[];
+# define NAN (*(double *)rb_nan)
+#endif
+
 #ifdef __CYGWIN__
 #undef _WIN32
 #endif
diff --git a/include/ruby/util.h b/include/ruby/util.h
index 1c52c576d..0c1e1c4eb 100644
--- a/include/ruby/util.h
+++ b/include/ruby/util.h
@@ -74,12 +74,6 @@ double ruby_strtod(const char *, char **);
 #pragma warning(push)
 #pragma warning(disable:4723)
 #endif
-static inline double
-ruby_div0(double x)
-{
-    double t = 0.0;
-    return x / t;
-}
 #if defined _MSC_VER && _MSC_VER >= 1300
 #pragma warning(pop)
 #endif
-- 
cgit