2008-01-22  Miguel Sofer  <msofer@users.sf.net>

	* generic/tclCmdIl.c (Tcl_LreverseObjCmd): 
	* tests/cmdIL.test (cmdIL-7.7): fix crash on reversing an empty
	list [Bug 1876793].

2008-01-20  Jeff Hobbs  <jeffh@ActiveState.com>

	* unix/README: minor typo fixes [Bug 1853072]

	* generic/tclIO.c (TclGetsObjBinary): operate on topmost channel.
	[Bug 1869405] (Ficicchia)

 * Copyright (c) 1998-1999 by Scriptics Corporation.
 * Copyright (c) 2001 by Kevin B. Kenny. All rights reserved.
 * Copyright (c) 2005 Donal K. Fellows.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tclCmdIL.c,v 1.136 2008/01/22 11:38:33 msofer Exp $
 */

#include "tclInt.h"
#include "tclRegexp.h"

/*
 * During execution of the "lsort" command, structures of the following type

    if (objc != 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "list");
	return TCL_ERROR;
    }
    if (TclListObjGetElements(interp, objv[1], &elemc, &elemv) != TCL_OK) {
	return TCL_ERROR;
    }

    /*
     * If the list is empty, just return it [Bug 1876793]
     */

    if (!elemc) {
	Tcl_SetObjResult(interp, objv[1]);
	return TCL_OK;
    }

    if (Tcl_IsShared(objv[1])) {
	Tcl_Obj *resultObj, **dataArray;
	List *listPtr;

    makeNewReversedList:
	resultObj = Tcl_NewListObj(elemc, NULL);

# This file contains a collection of tests for the procedures in the
# file tclCmdIL.c.  Sourcing this file into Tcl runs the tests and
# generates output for errors.  No output means no errors were found.
#
# Copyright (c) 1997 Sun Microsystems, Inc.
# Copyright (c) 1998-1999 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: cmdIL.test,v 1.37 2008/01/22 11:38:34 msofer Exp $

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest 2
    namespace import -force ::tcltest::*
}

# Used for constraining memory leak tests

} {f e {c d} b a}
test cmdIL-7.5 {lreverse command - unshared object} {
    lreverse [list a b {c d} e f]
} {f e {c d} b a}
test cmdIL-7.6 {lreverse command - unshared object [Bug 1672585]} {
    lreverse [set x {1 2 3}][unset x]
} {3 2 1}
test cmdIL-7.7 {lreverse command - empty object [Bug 1876793]} {
    lreverse [list]
} {}

testConstraint testobj [llength [info commands testobj]]
test cmdIL-7.7 {lreverse command - shared intrep [Bug 1675044]} -setup {
    teststringobj set 1 {1 2 3}
    testobj convert 1 list
    testobj duplicate 1 2
    variable x [teststringobj get 1]