* lib/closein.c (close_stdin): Improve comments.
Signed-off-by: Eric Blake <ebl...@redhat.com>
---
I noticed this while auditing to see which modules might have been
affected by the recently-fixed fseeko bug.
ChangeLog | 5 +++++
lib/closein.c | 5 +++--
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 701f07b..538c121 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-08-10 Eric Blake <ebl...@redhat.com>
+
+ closein: correct comments
+ * lib/closein.c (close_stdin): Improve comments.
+
2011-08-09 Bruno Haible <br...@clisp.org>
More tests for 'fseeko'.
diff --git a/lib/closein.c b/lib/closein.c
index beff8bb..2a652f4 100644
--- a/lib/closein.c
+++ b/lib/closein.c
@@ -55,7 +55,7 @@ close_stdin_set_file_name (const char *file)
For example, POSIX requires that these two commands behave alike:
(sed -ne 1q; cat) < file
- tail -n 1 file
+ tail -n +2 file
Since close_stdin is commonly registered via 'atexit', POSIX
and the C standard both say that it should not call 'exit',
@@ -82,7 +82,8 @@ close_stdin (void)
/* There is no need to flush stdin if we can determine quickly that stdin's
input buffer is empty; in this case we know that if stdin is seekable,
- fseeko (stdin, 0, SEEK_CUR) == lseek (0, 0, SEEK_CUR). */
+ (fseeko (stdin, 0, SEEK_CUR), ftello (stdin))
+ == lseek (0, 0, SEEK_CUR). */
if (freadahead (stdin) > 0)
{
/* Only attempt flush if stdin is seekable, as fflush is entitled to
--
1.7.4.4
