Fix porting inconsistency about rounding to even.

* doc/lispref/numbers.texi (Numeric Conversions, Rounding Operations):
Document that 'round' and 'fround' round to even.
* src/floatfns.c (emacs_rint) [!HAVE_RINT]: Round to even.
This way, the unusual !HAVE_RINT case acts like the usual
HAVE_RINT case, and we can fix the documentation accordingly.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 94859f1f8fd..06e4c3291b5 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2014-03-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix porting inconsistency about rounding to even.
+        * floatfns.c (emacs_rint) [!HAVE_RINT]: Round to even.
+        This way, the unusual !HAVE_RINT case acts like the usual
+        HAVE_RINT case, and we can fix the documentation accordingly.
+
 2014-03-19  Eli Zaretskii  <eliz@gnu.org>
 
         * w32fns.c (reset_modifiers): Zero out keystate[] before using it.