Compare and round more carefully

* etc/NEWS: Document this.
* src/data.c (store_symval_forwarding):
* src/sound.c (parse_sound):
Do not botch NaN comparison.
* src/data.c (cons_to_unsigned, cons_to_signed):
Signal an error if a floating-point arg is not integral.
* src/data.c (cons_to_unsigned, cons_to_signed):
* src/fileio.c (file_offset):
Use simpler overflow check.
* src/dbusbind.c (xd_extract_signed, xd_extract_unsigned):
Avoid rounding error in overflow check.
(Fcar_less_than_car): Use arithcompare directly.
* test/src/charset-tests.el: New file.

1 files changed, 26 insertions, 0 deletions

diff --git a/test/src/charset-tests.el b/test/src/charset-tests.el
new file mode 100644
index 00000000000..515a4eafe14
--- /dev/null
+++ b/test/src/charset-tests.el
@@ -0,0 +1,26 @@
+;;; charset-tests.el --- Tests for charset.c
+
+;; Copyright 2017 Free Software Foundation, Inc.
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Code:
+
+(require 'ert)
+
+(ert-deftest charset-decode-char ()
+  "Test decode-char."
+  (should-error (decode-char 'ascii 0.5)))
+
+(provide 'charset-tests)