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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2004-11-28 16:31:12 +0000
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2004-11-28 16:31:12 +0000
commit4b6b97b027b5b09e0da15d4ca23dba958b5d0493 (patch)
treefd9bdf090f862a83a1a1a6988704ed8035dd7135
parentf11423735f528b63d92a5d755ea8f8c61549532d (diff)
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* io.c (rb_io_check_writable): restrict io_seek by
READ_DATA_PENDING because io_seek(fptr, 0, SEEK_CUR) is meaningful only if read buffer is not empty. call io_seek regardless of NEED_IO_SEEK_BETWEEN_RW. git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@7404 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r--ChangeLog7
-rw-r--r--io.c5
2 files changed, 9 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index eba6188d9..bff389903 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Mon Nov 29 01:18:18 2004 Tanaka Akira <akr@m17n.org>
+
+ * io.c (rb_io_check_writable): restrict io_seek by
+ READ_DATA_PENDING because io_seek(fptr, 0, SEEK_CUR) is
+ meaningful only if read buffer is not empty.
+ call io_seek regardless of NEED_IO_SEEK_BETWEEN_RW.
+
Sun Nov 28 15:57:58 2004 Kouhei Sutou <kou@cozmixng.org>
* lib/rss/rss.rb (RSS::Element#tag): not use block_given? for
diff --git a/io.c b/io.c
index 9c4ef1b98..8bc6d9b74 100644
--- a/io.c
+++ b/io.c
@@ -261,11 +261,10 @@ rb_io_check_writable(fptr)
if (!(fptr->mode & FMODE_WRITABLE)) {
rb_raise(rb_eIOError, "not opened for writing");
}
-#if NEED_IO_SEEK_BETWEEN_RW
- if ((fptr->mode & FMODE_RBUF) && !feof(fptr->f) && !fptr->f2) {
+ if ((fptr->mode & FMODE_RBUF) && !feof(fptr->f) && !fptr->f2 &&
+ READ_DATA_PENDING(fptr->f)) {
io_seek(fptr, 0, SEEK_CUR);
}
-#endif
if (!fptr->f2) {
fptr->mode &= ~FMODE_RBUF;
}