re PR libstdc++/58338 (Add noexcept to functions with a narrow contract)

2013-09-18  Marc Glisse  <marc.glisse@inria.fr>

	PR libstdc++/58338
	* include/bits/stl_iterator.h (__normal_iterator) [__normal_iterator,
	_M_const_cast, operator*, operator->, operator++, operator--,
	operator[], operator+=, operator+, operator-=, operator-, base]:
	Mark as noexcept.
	(operator==(const __normal_iterator&, const __normal_iterator&),
	operator!=(const __normal_iterator&, const __normal_iterator&),
	operator<(const __normal_iterator&, const __normal_iterator&),
	operator>(const __normal_iterator&, const __normal_iterator&),
	operator<=(const __normal_iterator&, const __normal_iterator&),
	operator>=(const __normal_iterator&, const __normal_iterator&),
	operator-(const __normal_iterator&, const __normal_iterator&),
	operator+(difference_type, const __normal_iterator&)): Likewise.
	* include/bits/stl_list.h (list) [splice, _M_check_equal_allocators]:
	Likewise.
	(list::_M_check_equal_allocators): Abort instead of throwing.
	* include/debug/array (array) [operator[], front, back]: Mark as
	noexcept.
	* include/profile/array (array) [operator[], front, back]: Likewise.
	* include/std/array (array) [operator[], front, back]: Likewise.
	* include/debug/list (list::splice): Likewise.
	* include/profile/list (list::splice): Likewise.
	* testsuite/23_containers/list/operations/5.cc: Remove file.
	* testsuite/23_containers/list/operations/5.h: Likewise.

From-SVN: r202716
This commit is contained in:
Marc Glisse 2013-09-18 20:31:01 +02:00 committed by Marc Glisse
parent c9b29b2540
commit b4efa80e56
10 changed files with 94 additions and 216 deletions

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@ -1,3 +1,30 @@
2013-09-18 Marc Glisse <marc.glisse@inria.fr>
PR libstdc++/58338
* include/bits/stl_iterator.h (__normal_iterator) [__normal_iterator,
_M_const_cast, operator*, operator->, operator++, operator--,
operator[], operator+=, operator+, operator-=, operator-, base]:
Mark as noexcept.
(operator==(const __normal_iterator&, const __normal_iterator&),
operator!=(const __normal_iterator&, const __normal_iterator&),
operator<(const __normal_iterator&, const __normal_iterator&),
operator>(const __normal_iterator&, const __normal_iterator&),
operator<=(const __normal_iterator&, const __normal_iterator&),
operator>=(const __normal_iterator&, const __normal_iterator&),
operator-(const __normal_iterator&, const __normal_iterator&),
operator+(difference_type, const __normal_iterator&)): Likewise.
* include/bits/stl_list.h (list) [splice, _M_check_equal_allocators]:
Likewise.
(list::_M_check_equal_allocators): Abort instead of throwing.
* include/debug/array (array) [operator[], front, back]: Mark as
noexcept.
* include/profile/array (array) [operator[], front, back]: Likewise.
* include/std/array (array) [operator[], front, back]: Likewise.
* include/debug/list (list::splice): Likewise.
* include/profile/list (list::splice): Likewise.
* testsuite/23_containers/list/operations/5.cc: Remove file.
* testsuite/23_containers/list/operations/5.h: Likewise.
2013-09-18 Tim Shen <timshen91@gmail.com>
* include/bits/regex.h: Add friend classes.

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@ -721,22 +721,24 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typedef typename __traits_type::reference reference;
typedef typename __traits_type::pointer pointer;
_GLIBCXX_CONSTEXPR __normal_iterator() : _M_current(_Iterator()) { }
_GLIBCXX_CONSTEXPR __normal_iterator() _GLIBCXX_NOEXCEPT
: _M_current(_Iterator()) { }
explicit
__normal_iterator(const _Iterator& __i) : _M_current(__i) { }
__normal_iterator(const _Iterator& __i) _GLIBCXX_NOEXCEPT
: _M_current(__i) { }
// Allow iterator to const_iterator conversion
template<typename _Iter>
__normal_iterator(const __normal_iterator<_Iter,
typename __enable_if<
(std::__are_same<_Iter, typename _Container::pointer>::__value),
_Container>::__type>& __i)
_Container>::__type>& __i) _GLIBCXX_NOEXCEPT
: _M_current(__i.base()) { }
#if __cplusplus >= 201103L
__normal_iterator<typename _Container::pointer, _Container>
_M_const_cast() const
_M_const_cast() const noexcept
{
using _PTraits = std::pointer_traits<typename _Container::pointer>;
return __normal_iterator<typename _Container::pointer, _Container>
@ -751,59 +753,59 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// Forward iterator requirements
reference
operator*() const
operator*() const _GLIBCXX_NOEXCEPT
{ return *_M_current; }
pointer
operator->() const
operator->() const _GLIBCXX_NOEXCEPT
{ return _M_current; }
__normal_iterator&
operator++()
operator++() _GLIBCXX_NOEXCEPT
{
++_M_current;
return *this;
}
__normal_iterator
operator++(int)
operator++(int) _GLIBCXX_NOEXCEPT
{ return __normal_iterator(_M_current++); }
// Bidirectional iterator requirements
__normal_iterator&
operator--()
operator--() _GLIBCXX_NOEXCEPT
{
--_M_current;
return *this;
}
__normal_iterator
operator--(int)
operator--(int) _GLIBCXX_NOEXCEPT
{ return __normal_iterator(_M_current--); }
// Random access iterator requirements
reference
operator[](difference_type __n) const
operator[](difference_type __n) const _GLIBCXX_NOEXCEPT
{ return _M_current[__n]; }
__normal_iterator&
operator+=(difference_type __n)
operator+=(difference_type __n) _GLIBCXX_NOEXCEPT
{ _M_current += __n; return *this; }
__normal_iterator
operator+(difference_type __n) const
operator+(difference_type __n) const _GLIBCXX_NOEXCEPT
{ return __normal_iterator(_M_current + __n); }
__normal_iterator&
operator-=(difference_type __n)
operator-=(difference_type __n) _GLIBCXX_NOEXCEPT
{ _M_current -= __n; return *this; }
__normal_iterator
operator-(difference_type __n) const
operator-(difference_type __n) const _GLIBCXX_NOEXCEPT
{ return __normal_iterator(_M_current - __n); }
const _Iterator&
base() const
base() const _GLIBCXX_NOEXCEPT
{ return _M_current; }
};
@ -820,24 +822,28 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
inline bool
operator==(const __normal_iterator<_IteratorL, _Container>& __lhs,
const __normal_iterator<_IteratorR, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() == __rhs.base(); }
template<typename _Iterator, typename _Container>
inline bool
operator==(const __normal_iterator<_Iterator, _Container>& __lhs,
const __normal_iterator<_Iterator, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() == __rhs.base(); }
template<typename _IteratorL, typename _IteratorR, typename _Container>
inline bool
operator!=(const __normal_iterator<_IteratorL, _Container>& __lhs,
const __normal_iterator<_IteratorR, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() != __rhs.base(); }
template<typename _Iterator, typename _Container>
inline bool
operator!=(const __normal_iterator<_Iterator, _Container>& __lhs,
const __normal_iterator<_Iterator, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() != __rhs.base(); }
// Random access iterator requirements
@ -845,48 +851,56 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
inline bool
operator<(const __normal_iterator<_IteratorL, _Container>& __lhs,
const __normal_iterator<_IteratorR, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() < __rhs.base(); }
template<typename _Iterator, typename _Container>
inline bool
operator<(const __normal_iterator<_Iterator, _Container>& __lhs,
const __normal_iterator<_Iterator, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() < __rhs.base(); }
template<typename _IteratorL, typename _IteratorR, typename _Container>
inline bool
operator>(const __normal_iterator<_IteratorL, _Container>& __lhs,
const __normal_iterator<_IteratorR, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() > __rhs.base(); }
template<typename _Iterator, typename _Container>
inline bool
operator>(const __normal_iterator<_Iterator, _Container>& __lhs,
const __normal_iterator<_Iterator, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() > __rhs.base(); }
template<typename _IteratorL, typename _IteratorR, typename _Container>
inline bool
operator<=(const __normal_iterator<_IteratorL, _Container>& __lhs,
const __normal_iterator<_IteratorR, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() <= __rhs.base(); }
template<typename _Iterator, typename _Container>
inline bool
operator<=(const __normal_iterator<_Iterator, _Container>& __lhs,
const __normal_iterator<_Iterator, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() <= __rhs.base(); }
template<typename _IteratorL, typename _IteratorR, typename _Container>
inline bool
operator>=(const __normal_iterator<_IteratorL, _Container>& __lhs,
const __normal_iterator<_IteratorR, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() >= __rhs.base(); }
template<typename _Iterator, typename _Container>
inline bool
operator>=(const __normal_iterator<_Iterator, _Container>& __lhs,
const __normal_iterator<_Iterator, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() >= __rhs.base(); }
// _GLIBCXX_RESOLVE_LIB_DEFECTS
@ -898,7 +912,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// DR 685.
inline auto
operator-(const __normal_iterator<_IteratorL, _Container>& __lhs,
const __normal_iterator<_IteratorR, _Container>& __rhs)
const __normal_iterator<_IteratorR, _Container>& __rhs) noexcept
-> decltype(__lhs.base() - __rhs.base())
#else
inline typename __normal_iterator<_IteratorL, _Container>::difference_type
@ -911,12 +925,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
inline typename __normal_iterator<_Iterator, _Container>::difference_type
operator-(const __normal_iterator<_Iterator, _Container>& __lhs,
const __normal_iterator<_Iterator, _Container>& __rhs)
_GLIBCXX_NOEXCEPT
{ return __lhs.base() - __rhs.base(); }
template<typename _Iterator, typename _Container>
inline __normal_iterator<_Iterator, _Container>
operator+(typename __normal_iterator<_Iterator, _Container>::difference_type
__n, const __normal_iterator<_Iterator, _Container>& __i)
_GLIBCXX_NOEXCEPT
{ return __normal_iterator<_Iterator, _Container>(__i.base() + __n); }
_GLIBCXX_END_NAMESPACE_VERSION

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@ -1309,7 +1309,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
void
#if __cplusplus >= 201103L
splice(const_iterator __position, list&& __x)
splice(const_iterator __position, list&& __x) noexcept
#else
splice(iterator __position, list& __x)
#endif
@ -1325,7 +1325,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
#if __cplusplus >= 201103L
void
splice(const_iterator __position, list& __x)
splice(const_iterator __position, list& __x) noexcept
{ splice(__position, std::move(__x)); }
#endif
@ -1341,7 +1341,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
* inserts it into the current list before @a __position.
*/
void
splice(const_iterator __position, list&& __x, const_iterator __i)
splice(const_iterator __position, list&& __x, const_iterator __i) noexcept
#else
/**
* @brief Insert element from another %list.
@ -1380,7 +1380,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
* inserts it into the current list before @a __position.
*/
void
splice(const_iterator __position, list& __x, const_iterator __i)
splice(const_iterator __position, list& __x, const_iterator __i) noexcept
{ splice(__position, std::move(__x), __i); }
#endif
@ -1400,7 +1400,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
void
splice(const_iterator __position, list&& __x, const_iterator __first,
const_iterator __last)
const_iterator __last) noexcept
#else
/**
* @brief Insert range from another %list.
@ -1446,7 +1446,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
void
splice(const_iterator __position, list& __x, const_iterator __first,
const_iterator __last)
const_iterator __last) noexcept
{ splice(__position, std::move(__x), __first, __last); }
#endif
@ -1696,11 +1696,11 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
// To implement the splice (and merge) bits of N1599.
void
_M_check_equal_allocators(list& __x)
_M_check_equal_allocators(list& __x) _GLIBCXX_NOEXCEPT
{
if (std::__alloc_neq<typename _Base::_Node_alloc_type>::
_S_do_it(_M_get_Node_allocator(), __x._M_get_Node_allocator()))
__throw_runtime_error(__N("list::_M_check_equal_allocators"));
__builtin_abort();
}
};

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@ -147,7 +147,7 @@ namespace __debug
// Element access.
reference
operator[](size_type __n)
operator[](size_type __n) noexcept
{
__glibcxx_check_subscript(__n);
return _AT_Type::_S_ref(_M_elems, __n);
@ -180,14 +180,14 @@ namespace __debug
}
reference
front()
front() noexcept
{
__glibcxx_check_nonempty();
return *begin();
}
constexpr const_reference
front() const
front() const noexcept
{
return _Nm ? _AT_Type::_S_ref(_M_elems, 0)
: (_GLIBCXX_THROW_OR_ABORT(_Array_check_nonempty<_Nm>()),
@ -195,14 +195,14 @@ namespace __debug
}
reference
back()
back() noexcept
{
__glibcxx_check_nonempty();
return _Nm ? *(end() - 1) : *end();
}
constexpr const_reference
back() const
back() const noexcept
{
return _Nm ? _AT_Type::_S_ref(_M_elems, _Nm - 1)
: (_GLIBCXX_THROW_OR_ABORT(_Array_check_nonempty<_Nm>()),

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@ -515,7 +515,7 @@ namespace __debug
// 23.2.2.4 list operations:
void
#if __cplusplus >= 201103L
splice(const_iterator __position, list&& __x)
splice(const_iterator __position, list&& __x) noexcept
#else
splice(iterator __position, list& __x)
#endif
@ -529,13 +529,13 @@ namespace __debug
#if __cplusplus >= 201103L
void
splice(const_iterator __position, list& __x)
splice(const_iterator __position, list& __x) noexcept
{ splice(__position, std::move(__x)); }
#endif
void
#if __cplusplus >= 201103L
splice(const_iterator __position, list&& __x, const_iterator __i)
splice(const_iterator __position, list&& __x, const_iterator __i) noexcept
#else
splice(iterator __position, list& __x, iterator __i)
#endif
@ -561,14 +561,14 @@ namespace __debug
#if __cplusplus >= 201103L
void
splice(const_iterator __position, list& __x, const_iterator __i)
splice(const_iterator __position, list& __x, const_iterator __i) noexcept
{ splice(__position, std::move(__x), __i); }
#endif
void
#if __cplusplus >= 201103L
splice(const_iterator __position, list&& __x, const_iterator __first,
const_iterator __last)
const_iterator __last) noexcept
#else
splice(iterator __position, list& __x, iterator __first,
iterator __last)
@ -608,7 +608,7 @@ namespace __debug
#if __cplusplus >= 201103L
void
splice(const_iterator __position, list& __x,
const_iterator __first, const_iterator __last)
const_iterator __first, const_iterator __last) noexcept
{ splice(__position, std::move(__x), __first, __last); }
#endif

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@ -127,7 +127,7 @@ namespace __profile
// Element access.
reference
operator[](size_type __n)
operator[](size_type __n) noexcept
{ return _AT_Type::_S_ref(_M_elems, __n); }
constexpr const_reference
@ -153,19 +153,19 @@ namespace __profile
}
reference
front()
front() noexcept
{ return *begin(); }
constexpr const_reference
front() const
front() const noexcept
{ return _AT_Type::_S_ref(_M_elems, 0); }
reference
back()
back() noexcept
{ return _Nm ? *(end() - 1) : *end(); }
constexpr const_reference
back() const
back() const noexcept
{
return _Nm ? _AT_Type::_S_ref(_M_elems, _Nm - 1)
: _AT_Type::_S_ref(_M_elems, 0);

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@ -440,7 +440,7 @@ template<typename _Tp, typename _Allocator = std::allocator<_Tp> >
// 23.2.2.4 list operations:
void
#if __cplusplus >= 201103L
splice(const_iterator __position, list&& __x)
splice(const_iterator __position, list&& __x) noexcept
#else
splice(iterator __position, list& __x)
#endif
@ -448,7 +448,7 @@ template<typename _Tp, typename _Allocator = std::allocator<_Tp> >
#if __cplusplus >= 201103L
void
splice(const_iterator __position, list& __x)
splice(const_iterator __position, list& __x) noexcept
{ this->splice(__position, std::move(__x)); }
void
@ -458,7 +458,7 @@ template<typename _Tp, typename _Allocator = std::allocator<_Tp> >
void
#if __cplusplus >= 201103L
splice(const_iterator __position, list&& __x, const_iterator __i)
splice(const_iterator __position, list&& __x, const_iterator __i) noexcept
#else
splice(iterator __position, list& __x, iterator __i)
#endif
@ -474,7 +474,7 @@ template<typename _Tp, typename _Allocator = std::allocator<_Tp> >
void
#if __cplusplus >= 201103L
splice(const_iterator __position, list&& __x, const_iterator __first,
const_iterator __last)
const_iterator __last) noexcept
#else
splice(iterator __position, list& __x, iterator __first,
iterator __last)
@ -490,7 +490,7 @@ template<typename _Tp, typename _Allocator = std::allocator<_Tp> >
#if __cplusplus >= 201103L
void
splice(const_iterator __position, list& __x,
const_iterator __first, const_iterator __last)
const_iterator __first, const_iterator __last) noexcept
{ this->splice(__position, std::move(__x), __first, __last); }
#endif

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@ -169,7 +169,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
// Element access.
reference
operator[](size_type __n)
operator[](size_type __n) noexcept
{ return _AT_Type::_S_ref(_M_elems, __n); }
constexpr const_reference
@ -195,19 +195,19 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
}
reference
front()
front() noexcept
{ return *begin(); }
constexpr const_reference
front() const
front() const noexcept
{ return _AT_Type::_S_ref(_M_elems, 0); }
reference
back()
back() noexcept
{ return _Nm ? *(end() - 1) : *end(); }
constexpr const_reference
back() const
back() const noexcept
{
return _Nm ? _AT_Type::_S_ref(_M_elems, _Nm - 1)
: _AT_Type::_S_ref(_M_elems, 0);

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@ -1,31 +0,0 @@
// 2006-01-19 Paolo Carlini <pcarlini@suse.de>
// Copyright (C) 2006-2013 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include "5.h"
#include <list>
int main()
{
typedef int value_type;
typedef __gnu_test::uneq_allocator<value_type> allocator_type;
typedef std::list<value_type, allocator_type> list_type;
operations05<list_type>();
return 0;
}

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@ -1,134 +0,0 @@
// 2006-01-19 Paolo Carlini <pcarlini@suse.de>
// Copyright (C) 2006-2013 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 23.2.2.4 list operations [lib.list.ops]
#include <stdexcept>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>
// Check the splice (and merge) bits of N1599.
template<typename _Tp>
void
operations05()
{
bool test __attribute__((unused)) = true;
typedef _Tp list_type;
typedef typename list_type::allocator_type allocator_type;
const int data1[] = {1, 2, 3, 4, 5};
const int data2[] = {6, 7, 8, 9, 10};
const size_t N1 = sizeof(data1) / sizeof(int);
const size_t N2 = sizeof(data2) / sizeof(int);
allocator_type alloc01(1), alloc02(2);
list_type l01(data1, data1 + N1, alloc01);
const list_type l01_ref = l01;
list_type l02(data2, data2 + N2, alloc02);
const list_type l02_ref = l02;
bool catched = false;
try
{
l01.splice(l01.begin(), l02);
}
catch(std::runtime_error&)
{
catched = true;
}
catch(...)
{
VERIFY( false );
}
VERIFY( catched );
VERIFY( l01 == l01_ref );
VERIFY( l02 == l02_ref );
catched = false;
try
{
l01.splice(l01.begin(), l02, l02.begin());
}
catch(std::runtime_error&)
{
catched = true;
}
catch(...)
{
VERIFY( false );
}
VERIFY( catched );
VERIFY( l01 == l01_ref );
VERIFY( l02 == l02_ref );
catched = false;
try
{
l01.splice(l01.begin(), l02, l02.begin(), l02.end());
}
catch(std::runtime_error&)
{
catched = true;
}
catch(...)
{
VERIFY( false );
}
VERIFY( catched );
VERIFY( l01 == l01_ref );
VERIFY( l02 == l02_ref );
catched = false;
try
{
l01.merge(l02);
}
catch(std::runtime_error&)
{
catched = true;
}
catch(...)
{
VERIFY( false );
}
VERIFY( catched );
VERIFY( l01 == l01_ref );
VERIFY( l02 == l02_ref );
catched = false;
try
{
l01.merge(l02, std::less<int>());
}
catch(std::runtime_error&)
{
catched = true;
}
catch(...)
{
VERIFY( false );
}
VERIFY( catched );
VERIFY( l01 == l01_ref );
VERIFY( l02 == l02_ref );
}