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[Emacs-diffs] master 8acb88c: Minor INFINITY/NAN cleanup
From: |
Paul Eggert |
Subject: |
[Emacs-diffs] master 8acb88c: Minor INFINITY/NAN cleanup |
Date: |
Mon, 7 Jan 2019 01:03:19 -0500 (EST) |
branch: master
commit 8acb88c5026cb11cbff466f53bef9d3e864879e7
Author: Paul Eggert <address@hidden>
Commit: Paul Eggert <address@hidden>
Minor INFINITY/NAN cleanup
* src/lread.c (INFINITY): Use a more-portable way to specify
this macro on non-C99 platforms that lack it.
(NAN): Remove; unused.
---
src/lread.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/src/lread.c b/src/lread.c
index 788e57b..02f7caa 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -46,10 +46,6 @@ along with GNU Emacs. If not, see
<https://www.gnu.org/licenses/>. */
#ifdef MSDOS
#include "msdos.h"
-#if __DJGPP__ == 2 && __DJGPP_MINOR__ < 5
-# define INFINITY __builtin_inf()
-# define NAN __builtin_nan("")
-#endif
#endif
#ifdef HAVE_NS
@@ -74,6 +70,9 @@ along with GNU Emacs. If not, see
<https://www.gnu.org/licenses/>. */
#if IEEE_FLOATING_POINT
# include <ieee754.h>
+# ifndef INFINITY
+# define INFINITY ((union ieee754_double) {.ieee = {.exponent = -1}}.d)
+# endif
#endif
/* The objects or placeholders read with the #n=object form.
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