From: Paul Eggert <eggert@cs.ucla.edu>
Date: Fri, 31 Aug 2018 15:50:45 +0000 (-0700)
Subject: Port better to non-IEEE platforms
X-Git-Tag: emacs-27.0.90~4475
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=ab871981125393d89202932284eda6e507bfc6fd;p=emacs.git

Port better to non-IEEE platforms

* src/lread.c (string_to_number) [!IEEE_FLOATING_POINT]:
Do not use the INFINITY macro, since the C standard requires
it to provoke a compile-time error on platforms that do not
support infinities.
---

diff --git a/src/lread.c b/src/lread.c
index a7c5b0bb69c..e43929a8c6a 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -3762,6 +3762,7 @@ string_to_number (char const *string, int base, int flags)
 		cp++;
 	      while ('0' <= *cp && *cp <= '9');
 	    }
+#if IEEE_FLOATING_POINT
 	  else if (cp[-1] == '+'
 		   && cp[0] == 'I' && cp[1] == 'N' && cp[2] == 'F')
 	    {
@@ -3769,7 +3770,6 @@ string_to_number (char const *string, int base, int flags)
 	      cp += 3;
 	      value = INFINITY;
 	    }
-#if IEEE_FLOATING_POINT
 	  else if (cp[-1] == '+'
 		   && cp[0] == 'N' && cp[1] == 'a' && cp[2] == 'N')
 	    {