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2016-06-16 François Dumont <fdumont@gcc.gnu.org>

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* include/debug/debug.h
	(__glibcxx_requires_non_empty_range, __glibcxx_requires_nonempty)
	(__glibcxx_requires_subscript): Move...
	* include/debug/assertions.h: ...here and add __builtin_expect.
	(_GLIBCXX_DEBUG_ONLY): Remove ; value.
	* include/bits/stl_deque.h
	(std::deque<>::operator[]): Add __glibcxx_requires_subscript check.
	(std::deque<>::front()): Add __glibcxx_requires_nonempty check.
	(std::deque<>::back()): Likewise.
	(std::deque<>::pop_front()): Likewise.
	(std::deque<>::pop_back()): Likewise.
	(std::deque<>::swap(deque&)): Add allocator check.
	* include/bits/stl_vector.h
	(std::vector<>::operator[]): Add __glibcxx_requires_subscript check.
	(std::vector<>::front()): Add __glibcxx_requires_nonempty check.
	(std::vector<>::back()): Likewise.
	(std::vector<>::pop_back()): Likewise.
	(std::vector<>::swap(vector&)): Add allocator check.

From-SVN: r237541
This commit is contained in:
François Dumont 2016-06-16 20:34:08 +00:00
parent 1ac4d38e30
commit bd2ee798d5
6 changed files with 105 additions and 37 deletions
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21
libstdc++-v3/ChangeLog
View file

@ -1,3 +1,24 @@
2016-06-16 François Dumont <fdumont@gcc.gnu.org>
* include/debug/debug.h
(__glibcxx_requires_non_empty_range, __glibcxx_requires_nonempty)
(__glibcxx_requires_subscript): Move...
* include/debug/assertions.h: ...here and add __builtin_expect.
(_GLIBCXX_DEBUG_ONLY): Remove ; value.
* include/bits/stl_deque.h
(std::deque<>::operator[]): Add __glibcxx_requires_subscript check.
(std::deque<>::front()): Add __glibcxx_requires_nonempty check.
(std::deque<>::back()): Likewise.
(std::deque<>::pop_front()): Likewise.
(std::deque<>::pop_back()): Likewise.
(std::deque<>::swap(deque&)): Add allocator check.
* include/bits/stl_vector.h
(std::vector<>::operator[]): Add __glibcxx_requires_subscript check.
(std::vector<>::front()): Add __glibcxx_requires_nonempty check.
(std::vector<>::back()): Likewise.
(std::vector<>::pop_back()): Likewise.
(std::vector<>::swap(vector&)): Add allocator check.
2016-06-16 Daniel Kruegler <daniel.kruegler@gmail.com>
Provide swappable traits (p0185r1)

30
libstdc++-v3/include/bits/stl_deque.h
View file

@ -63,6 +63,8 @@
#include <initializer_list>
#endif
#include <debug/assertions.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_CONTAINER
@ -1365,7 +1367,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
reference
operator[](size_type __n) _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_start[difference_type(__n)]; }
{
__glibcxx_requires_subscript(__n);
return this->_M_impl._M_start[difference_type(__n)];
}
/**
* @brief Subscript access to the data contained in the %deque.
@ -1380,7 +1385,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
const_reference
operator[](size_type __n) const _GLIBCXX_NOEXCEPT
{ return this->_M_impl._M_start[difference_type(__n)]; }
{
__glibcxx_requires_subscript(__n);
return this->_M_impl._M_start[difference_type(__n)];
}
protected:
/// Safety check used only from at().
@ -1437,7 +1445,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
reference
front() _GLIBCXX_NOEXCEPT
{ return *begin(); }
{
__glibcxx_requires_nonempty();
return *begin();
}
/**
* Returns a read-only (constant) reference to the data at the first
@ -1445,7 +1456,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
const_reference
front() const _GLIBCXX_NOEXCEPT
{ return *begin(); }
{
__glibcxx_requires_nonempty();
return *begin();
}
/**
* Returns a read/write reference to the data at the last element of the
@ -1454,6 +1468,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
reference
back() _GLIBCXX_NOEXCEPT
{
__glibcxx_requires_nonempty();
iterator __tmp = end();
--__tmp;
return *__tmp;
@ -1466,6 +1481,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
const_reference
back() const _GLIBCXX_NOEXCEPT
{
__glibcxx_requires_nonempty();
const_iterator __tmp = end();
--__tmp;
return *__tmp;
@ -1549,6 +1565,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
void
pop_front() _GLIBCXX_NOEXCEPT
{
__glibcxx_requires_nonempty();
if (this->_M_impl._M_start._M_cur
!= this->_M_impl._M_start._M_last - 1)
{
@ -1571,6 +1588,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
void
pop_back() _GLIBCXX_NOEXCEPT
{
__glibcxx_requires_nonempty();
if (this->_M_impl._M_finish._M_cur
!= this->_M_impl._M_finish._M_first)
{
@ -1789,6 +1807,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
void
swap(deque& __x) _GLIBCXX_NOEXCEPT
{
#if __cplusplus >= 201103L
__glibcxx_assert(_Alloc_traits::propagate_on_container_swap::value
|| _M_get_Tp_allocator() == __x._M_get_Tp_allocator());
#endif
_M_impl._M_swap_data(__x._M_impl);
_Alloc_traits::_S_on_swap(_M_get_Tp_allocator(),
__x._M_get_Tp_allocator());

37
libstdc++-v3/include/bits/stl_vector.h
View file

@ -63,6 +63,8 @@
#include <initializer_list>
#endif
#include <debug/assertions.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_CONTAINER
@ -784,7 +786,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
reference
operator[](size_type __n) _GLIBCXX_NOEXCEPT
{ return *(this->_M_impl._M_start + __n); }
{
__glibcxx_requires_subscript(__n);
return *(this->_M_impl._M_start + __n);
}
/**
* @brief Subscript access to the data contained in the %vector.
@ -799,7 +804,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
const_reference
operator[](size_type __n) const _GLIBCXX_NOEXCEPT
{ return *(this->_M_impl._M_start + __n); }
{
__glibcxx_requires_subscript(__n);
return *(this->_M_impl._M_start + __n);
}
protected:
/// Safety check used only from at().
@ -856,7 +864,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
reference
front() _GLIBCXX_NOEXCEPT
{ return *begin(); }
{
__glibcxx_requires_nonempty();
return *begin();
}
/**
* Returns a read-only (constant) reference to the data at the first
@ -864,7 +875,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
const_reference
front() const _GLIBCXX_NOEXCEPT
{ return *begin(); }
{
__glibcxx_requires_nonempty();
return *begin();
}
/**
* Returns a read/write reference to the data at the last
@ -872,7 +886,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
reference
back() _GLIBCXX_NOEXCEPT
{ return *(end() - 1); }
{
__glibcxx_requires_nonempty();
return *(end() - 1);
}
/**
* Returns a read-only (constant) reference to the data at the
@ -880,7 +897,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
*/
const_reference
back() const _GLIBCXX_NOEXCEPT
{ return *(end() - 1); }
{
__glibcxx_requires_nonempty();
return *(end() - 1);
}
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// DR 464. Suggestion for new member functions in standard containers.
@ -955,6 +975,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
void
pop_back() _GLIBCXX_NOEXCEPT
{
__glibcxx_requires_nonempty();
--this->_M_impl._M_finish;
_Alloc_traits::destroy(this->_M_impl, this->_M_impl._M_finish);
}
@ -1205,6 +1226,10 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
void
swap(vector& __x) _GLIBCXX_NOEXCEPT
{
#if __cplusplus >= 201103L
__glibcxx_assert(_Alloc_traits::propagate_on_container_swap::value
|| _M_get_Tp_allocator() == __x._M_get_Tp_allocator());
#endif
this->_M_impl._M_swap_data(__x._M_impl);
_Alloc_traits::_S_on_swap(_M_get_Tp_allocator(),
__x._M_get_Tp_allocator());

36
libstdc++-v3/include/debug/assertions.h
View file

@ -33,20 +33,36 @@
# define _GLIBCXX_DEBUG_ASSERT(_Condition)
# define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
# define _GLIBCXX_DEBUG_ONLY(_Statement) ;
# define _GLIBCXX_DEBUG_ONLY(_Statement)
#else
#define _GLIBCXX_DEBUG_ASSERT(_Condition) __glibcxx_assert(_Condition)
#ifdef _GLIBCXX_DEBUG_PEDANTIC
# define _GLIBCXX_DEBUG_PEDASSERT(_Condition) _GLIBCXX_DEBUG_ASSERT(_Condition)
#else
# define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
#endif
# define _GLIBCXX_DEBUG_ONLY(_Statement) _Statement
#ifndef _GLIBCXX_ASSERTIONS
# define __glibcxx_requires_non_empty_range(_First,_Last)
# define __glibcxx_requires_nonempty()
# define __glibcxx_requires_subscript(_N)
#else
// Verify that [_First, _Last) forms a non-empty iterator range.
# define __glibcxx_requires_non_empty_range(_First,_Last) \
__glibcxx_assert(__builtin_expect(_First != _Last, true))
# define __glibcxx_requires_subscript(_N) \
__glibcxx_assert(__builtin_expect(_N < this->size(), true))
// Verify that the container is nonempty
# define __glibcxx_requires_nonempty() \
__glibcxx_assert(__builtin_expect(!this->empty(), true))
#endif
#ifdef _GLIBCXX_DEBUG
# define _GLIBCXX_DEBUG_ASSERT(_Condition) __glibcxx_assert(_Condition)
# ifdef _GLIBCXX_DEBUG_PEDANTIC
# define _GLIBCXX_DEBUG_PEDASSERT(_Condition) _GLIBCXX_DEBUG_ASSERT(_Condition)
# else
# define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
# endif
# define _GLIBCXX_DEBUG_ONLY(_Statement) _Statement
#endif
#endif // _GLIBCXX_DEBUG_ASSERTIONS

17
libstdc++-v3/include/debug/debug.h
View file

@ -74,24 +74,11 @@ namespace __gnu_debug
# define __glibcxx_requires_heap_pred(_First,_Last,_Pred)
# define __glibcxx_requires_string(_String)
# define __glibcxx_requires_string_len(_String,_Len)
# define __glibcxx_requires_subscript(_N)
# define __glibcxx_requires_irreflexive(_First,_Last)
# define __glibcxx_requires_irreflexive2(_First,_Last)
# define __glibcxx_requires_irreflexive_pred(_First,_Last,_Pred)
# define __glibcxx_requires_irreflexive_pred2(_First,_Last,_Pred)
#ifdef _GLIBCXX_ASSERTIONS
// Verify that [_First, _Last) forms a non-empty iterator range.
# define __glibcxx_requires_non_empty_range(_First,_Last) \
__glibcxx_assert(_First != _Last)
// Verify that the container is nonempty
# define __glibcxx_requires_nonempty() \
__glibcxx_assert(! this->empty())
#else
# define __glibcxx_requires_non_empty_range(_First,_Last)
# define __glibcxx_requires_nonempty()
#endif
#else
# include <debug/macros.h>
@ -99,8 +86,6 @@ namespace __gnu_debug
# define __glibcxx_requires_cond(_Cond,_Msg) _GLIBCXX_DEBUG_VERIFY(_Cond,_Msg)
# define __glibcxx_requires_valid_range(_First,_Last) \
__glibcxx_check_valid_range(_First,_Last)
# define __glibcxx_requires_non_empty_range(_First,_Last) \
__glibcxx_check_non_empty_range(_First,_Last)
# define __glibcxx_requires_sorted(_First,_Last) \
__glibcxx_check_sorted(_First,_Last)
# define __glibcxx_requires_sorted_pred(_First,_Last,_Pred) \
@ -121,11 +106,9 @@ namespace __gnu_debug
__glibcxx_check_heap(_First,_Last)
# define __glibcxx_requires_heap_pred(_First,_Last,_Pred) \
__glibcxx_check_heap_pred(_First,_Last,_Pred)
# define __glibcxx_requires_nonempty() __glibcxx_check_nonempty()
# define __glibcxx_requires_string(_String) __glibcxx_check_string(_String)
# define __glibcxx_requires_string_len(_String,_Len) \
__glibcxx_check_string_len(_String,_Len)
# define __glibcxx_requires_subscript(_N) __glibcxx_check_subscript(_N)
# define __glibcxx_requires_irreflexive(_First,_Last) \
__glibcxx_check_irreflexive(_First,_Last)
# define __glibcxx_requires_irreflexive2(_First,_Last) \

1
libstdc++-v3/include/debug/helper_functions.h
View file

@ -138,6 +138,7 @@ namespace __gnu_debug
return __dist.first >= 0;
}
// Can't tell so assume it is fine.
return true;
}