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* include/bits/stl_bvector.h (_Bit_type): New. Use throughout.

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From-SVN: r50615
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Richard Henderson 2002-03-11 14:36:30 -08:00 • committed by Richard Henderson
parent e1b56469bf
commit 172f7610ae
2 changed files with 29 additions and 24 deletions
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4
libstdc++-v3/ChangeLog
View file

@ -1,3 +1,7 @@
2002-03-11 Richard Henderson <rth@redhat.com>
* include/bits/stl_bvector.h (_Bit_type): New. Use throughout.
2002-03-11 Phil Edwards <pme@gcc.gnu.org>
* testsuite/lib/libstdc++-v3-dg.exp (libstdc++-v3-list-sourcefiles):

49
libstdc++-v3/include/bits/stl_bvector.h
View file

@ -63,17 +63,19 @@
namespace std
{
enum { _M_word_bit = int(CHAR_BIT * sizeof(unsigned long)) };
typedef unsigned long _Bit_type;
enum { _M_word_bit = int(CHAR_BIT * sizeof(_Bit_type)) };
struct _Bit_reference {
unsigned int* _M_p;
unsigned int _M_mask;
_Bit_reference(unsigned int* __x, unsigned int __y)
_Bit_type * _M_p;
_Bit_type _M_mask;
_Bit_reference(_Bit_type * __x, _Bit_type __y)
: _M_p(__x), _M_mask(__y) {}
public:
_Bit_reference() : _M_p(0), _M_mask(0) {}
operator bool() const { return !(!(*_M_p & _M_mask)); }
operator bool() const { return !!(*_M_p & _M_mask); }
_Bit_reference& operator=(bool __x)
{
if (__x) *_M_p |= _M_mask;
@ -84,9 +86,8 @@ public:
{ return *this = bool(__x); }
bool operator==(const _Bit_reference& __x) const
{ return bool(*this) == bool(__x); }
bool operator<(const _Bit_reference& __x) const {
return !bool(*this) && bool(__x);
}
bool operator<(const _Bit_reference& __x) const
{ return !bool(*this) && bool(__x); }
void flip() { *_M_p ^= _M_mask; }
};
@ -99,10 +100,10 @@ inline void swap(_Bit_reference __x, _Bit_reference __y)
struct _Bit_iterator_base : public iterator<random_access_iterator_tag, bool>
{
unsigned int* _M_p;
_Bit_type * _M_p;
unsigned int _M_offset;
_Bit_iterator_base(unsigned int* __x, unsigned int __y)
_Bit_iterator_base(_Bit_type * __x, unsigned int __y)
: _M_p(__x), _M_offset(__y) {}
void _M_bump_up() {
@ -162,7 +163,7 @@ struct _Bit_iterator : public _Bit_iterator_base
typedef _Bit_iterator iterator;
_Bit_iterator() : _Bit_iterator_base(0, 0) {}
_Bit_iterator(unsigned int* __x, unsigned int __y)
_Bit_iterator(_Bit_type * __x, unsigned int __y)
: _Bit_iterator_base(__x, __y) {}
reference operator*() const { return reference(_M_p, 1U << _M_offset); }
@ -216,7 +217,7 @@ struct _Bit_const_iterator : public _Bit_iterator_base
typedef _Bit_const_iterator const_iterator;
_Bit_const_iterator() : _Bit_iterator_base(0, 0) {}
_Bit_const_iterator(unsigned int* __x, unsigned int __y)
_Bit_const_iterator(_Bit_type * __x, unsigned int __y)
: _Bit_iterator_base(__x, __y) {}
_Bit_const_iterator(const _Bit_iterator& __x)
: _Bit_iterator_base(__x._M_p, __x._M_offset) {}
@ -282,7 +283,7 @@ public:
: _M_data_allocator(__a), _M_start(), _M_finish(), _M_end_of_storage(0) {}
protected:
unsigned int* _M_bit_alloc(size_t __n)
_Bit_type * _M_bit_alloc(size_t __n)
{ return _M_data_allocator.allocate((__n + _M_word_bit - 1)/_M_word_bit); }
void _M_deallocate() {
if (_M_start._M_p)
@ -290,11 +291,11 @@ protected:
_M_end_of_storage - _M_start._M_p);
}
typename _Alloc_traits<unsigned int, _Allocator>::allocator_type
typename _Alloc_traits<_Bit_type, _Allocator>::allocator_type
_M_data_allocator;
_Bit_iterator _M_start;
_Bit_iterator _M_finish;
unsigned int* _M_end_of_storage;
_Bit_type * _M_end_of_storage;
};
// Specialization for instanceless allocators.
@ -309,10 +310,10 @@ public:
: _M_start(), _M_finish(), _M_end_of_storage(0) {}
protected:
typedef typename _Alloc_traits<unsigned int, _Allocator>::_Alloc_type
typedef typename _Alloc_traits<_Bit_type, _Allocator>::_Alloc_type
_Alloc_type;
unsigned int* _M_bit_alloc(size_t __n)
_Bit_type * _M_bit_alloc(size_t __n)
{ return _Alloc_type::allocate((__n + _M_word_bit - 1)/_M_word_bit); }
void _M_deallocate() {
if (_M_start._M_p)
@ -322,7 +323,7 @@ protected:
_Bit_iterator _M_start;
_Bit_iterator _M_finish;
unsigned int* _M_end_of_storage;
_Bit_type * _M_end_of_storage;
};
template <class _Alloc>
@ -379,7 +380,7 @@ template <typename _Alloc>
protected:
void _M_initialize(size_type __n) {
unsigned int* __q = _M_bit_alloc(__n);
_Bit_type * __q = _M_bit_alloc(__n);
_M_end_of_storage = __q + (__n + _M_word_bit - 1)/_M_word_bit;
_M_start = iterator(__q, 0);
_M_finish = _M_start + difference_type(__n);
@ -392,7 +393,7 @@ template <typename _Alloc>
}
else {
size_type __len = size() ? 2 * size() : _M_word_bit;
unsigned int* __q = _M_bit_alloc(__len);
_Bit_type * __q = _M_bit_alloc(__len);
iterator __i = copy(begin(), __position, iterator(__q, 0));
*__i++ = __x;
_M_finish = copy(__position, end(), __i);
@ -443,7 +444,7 @@ template <typename _Alloc>
}
else {
size_type __len = size() + max(size(), __n);
unsigned int* __q = _M_bit_alloc(__len);
_Bit_type * __q = _M_bit_alloc(__len);
iterator __i = copy(begin(), __position, iterator(__q, 0));
__i = copy(__first, __last, __i);
_M_finish = copy(__position, end(), __i);
@ -610,7 +611,7 @@ template <typename _Alloc>
void reserve(size_type __n) {
if (capacity() < __n) {
unsigned int* __q = _M_bit_alloc(__n);
_Bit_type * __q = _M_bit_alloc(__n);
_M_finish = copy(begin(), end(), iterator(__q, 0));
_M_deallocate();
_M_start = iterator(__q, 0);
@ -673,7 +674,7 @@ template <typename _Alloc>
}
else {
size_type __len = size() + max(size(), __n);
unsigned int* __q = _M_bit_alloc(__len);
_Bit_type * __q = _M_bit_alloc(__len);
iterator __i = copy(begin(), __position, iterator(__q, 0));
fill_n(__i, __n, __x);
_M_finish = copy(__position, end(), __i + difference_type(__n));
@ -705,7 +706,7 @@ template <typename _Alloc>
insert(end(), __new_size - size(), __x);
}
void flip() {
for (unsigned int* __p = _M_start._M_p; __p != _M_end_of_storage; ++__p)
for (_Bit_type * __p = _M_start._M_p; __p != _M_end_of_storage; ++__p)
*__p = ~*__p;
}