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Minor INFINITY/NAN cleanup

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* src/lread.c (INFINITY): Use a more-portable way to specify
this macro on non-C99 platforms that lack it.
(NAN): Remove; unused.
This commit is contained in:
Paul Eggert 2019-01-06 21:59:03 -08:00
parent 202bd7bff2
commit 8acb88c502
1 changed files with 3 additions and 4 deletions
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7
src/lread.c
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@ -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.