From 0a4fc3d71ba383af2eb2da62509d3c5537eebb68 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 23 Dec 2003 19:53:45 +0000
Subject: * io.c (read_all): do not return nil at the end of file.  
 [ruby-dev:22334]

* io.c (argf_read): do not depend on nil at eof behavior of
  IO#read().

* eval.c (rb_thread_join): dup exception before re-raising it.

* io.c (rb_io_eof): call clearerr() to prevent side effect.  this
  patch is supplied by Masahiro Sakai <sakai@tom.sfc.keio.ac.jp>.
  [ruby-dev:22234]

* pack.c (OFF16): get offset for big endian machines.

* pack.c (pack_pack): use OFF16 instead of OFF16B.
  [ruby-dev:22344]

* pack.c (pack_unpack): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5266 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 io.c | 43 +++++++++++++++++++++----------------------
 1 file changed, 21 insertions(+), 22 deletions(-)

(limited to 'io.c')

diff --git a/io.c b/io.c
index 8ecf0c1426..de3d7230d8 100644
--- a/io.c
+++ b/io.c
@@ -230,8 +230,8 @@ rb_io_check_readable(fptr)
 	!fptr->f2) {
 	io_seek(fptr, 0, SEEK_CUR);
     }
-    fptr->mode |= FMODE_RBUF;
 #endif
+    fptr->mode |= FMODE_RBUF;
 }
 
 void
@@ -247,6 +247,7 @@ rb_io_check_writable(fptr)
 	io_seek(fptr, 0, SEEK_CUR);
     }
 #endif
+    fptr->mode &= ~FMODE_RBUF;
 }
 
 int
@@ -568,6 +569,7 @@ rb_io_eof(io)
 	ungetc(ch, fptr->f);
 	return Qfalse;
     }
+    clearerr(fptr->f);
     return Qtrue;
 }
 
@@ -778,7 +780,6 @@ read_all(fptr, siz, str)
     long bytes = 0;
     long n;
 
-    if (feof(fptr->f)) return Qnil;
     READ_CHECK(fptr->f);
     if (siz == 0) siz = BUFSIZ;
     if (NIL_P(str)) {
@@ -3805,6 +3806,20 @@ argf_to_io()
     return current_file;
 }
 
+static VALUE
+argf_eof()
+{
+    if (current_file) {
+	if (init_p == 0) return Qtrue;
+	ARGF_FORWARD();
+	if (rb_io_eof(current_file)) {
+	    next_p = 1;
+	    return Qtrue;
+	}
+    }
+    return Qfalse;
+}
+
 static VALUE
 argf_read(argc, argv)
     int argc;
@@ -3824,18 +3839,16 @@ argf_read(argc, argv)
     else {
 	tmp = io_read(argc, argv, current_file);
     }
-    if (NIL_P(tmp)) {
+    if (NIL_P(str)) str = tmp;
+    else rb_str_append(str, tmp);
+    if (NIL_P(tmp) || argc == 0) {
 	if (next_p != -1) {
 	    argf_close(current_file);
 	    next_p = 1;
 	    goto retry;
 	}
-	return str;
     }
-    else if (NIL_P(str)) str = tmp;
-    else rb_str_append(str, tmp);
-    if (argc == 0) goto retry;
-    if (argc == 1) {
+    else if (argc == 1) {
 	if (RSTRING(str)->len < len) {
 	    len -= RSTRING(str)->len;
 	    argv[0] = INT2NUM(len);
@@ -3880,20 +3893,6 @@ argf_readchar()
     return c;
 }
 
-static VALUE
-argf_eof()
-{
-    if (current_file) {
-	if (init_p == 0) return Qtrue;
-	ARGF_FORWARD();
-	if (rb_io_eof(current_file)) {
-	    next_p = 1;
-	    return Qtrue;
-	}
-    }
-    return Qfalse;
-}
-
 static VALUE
 argf_each_line(argc, argv)
     int argc;
-- 
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