Allow floating-point file offsets.

Problem reported by Vitalie Spinu in
<http://lists.gnu.org/archive/html/emacs-devel/2013-01/msg00411.html>.
* doc/lispref/files.texi (Reading from Files, Writing to Files):
Say that file offsets can be numbers, not just integers.
* src/fileio.c (emacs_lseek): Remove.
(file_offset): New function.
(Finsert_file_contents, Fwrite_region): Use it.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 4bee4fc5ed7..c6bd70e2a04 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,12 @@
+2013-01-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Allow floating-point file offsets.
+        Problem reported by Vitalie Spinu in
+        <http://lists.gnu.org/archive/html/emacs-devel/2013-01/msg00411.html>.
+        * fileio.c (emacs_lseek): Remove.
+        (file_offset): New function.
+        (Finsert_file_contents, Fwrite_region): Use it.
+
 2013-01-19  Chong Yidong  <cyd@gnu.org>
 
         * emacs.c (Fkill_emacs): Set waiting_for_input to 0 to avoid