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std_memory.h (auto_ptr_ref): Reworked and defined only if _GLIBCPP_RESOLVE_LIB_DEFECTS.

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2000-06-29  Branko Cibej  <branko.cibej@hermes.si>

        * bits/std_memory.h (auto_ptr_ref): Reworked and defined only if
        _GLIBCPP_RESOLVE_LIB_DEFECTS.
        (auto_ptr): _M_ptr changed to void*.
        (suto_ptr::get): Cast _M_ptr to element type.
        (auto_ptr::auto_ptr(auto_ptr<Tp1>)): Test implicit convetsion.
        (auto_ptr::~auto_ptr): Use this->get() instead of _M_ptr.
        (auto_ptr::operator*): Likewise.
        (auto_ptr::operator->): Likewise.
        (auto_ptr::release): Likewise.
        (auto_ptr::reset): Likewise.
        (auto_ptr::auto_ptr(auto_ptr_ref)): Initialize from __ref._M_release.
        (auto_ptr::operator auto_ptr_rev<_Tp1>): Updated.
        Define nested auto_ptr_ref unless _GLIBCPP_RESOLVE_LIB_DEFECTS.
        Define operator=(auto_ptr_ref) if _GLIBCPP_RESOLVE_LIB_DEFECTS.

From-SVN: r34792
This commit is contained in:
Branko Cibej 2000-06-29 21:07:04 +00:00 committed by Benjamin Kosnik
parent d1e43c8bf0
commit c011e2ad8a
2 changed files with 74 additions and 27 deletions
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23
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,26 @@
2000-06-29 <bkoz@purist.soma.redhat.com>
* bits/char_traits.h (char_traits::eos): Non standard member
function, uglify to __eos. Return char_type().
* bits/std_ostream.h: Change.
2000-06-29 Branko Cibej <branko.cibej@hermes.si>
* bits/std_memory.h (auto_ptr_ref): Reworked and defined only if
_GLIBCPP_RESOLVE_LIB_DEFECTS.
(auto_ptr): _M_ptr changed to void*.
(suto_ptr::get): Cast _M_ptr to element type.
(auto_ptr::auto_ptr(auto_ptr<Tp1>)): Test implicit convetsion.
(auto_ptr::~auto_ptr): Use this->get() instead of _M_ptr.
(auto_ptr::operator*): Likewise.
(auto_ptr::operator->): Likewise.
(auto_ptr::release): Likewise.
(auto_ptr::reset): Likewise.
(auto_ptr::auto_ptr(auto_ptr_ref)): Initialize from __ref._M_release.
(auto_ptr::operator auto_ptr_rev<_Tp1>): Updated.
Define nested auto_ptr_ref unless _GLIBCPP_RESOLVE_LIB_DEFECTS.
Define operator=(auto_ptr_ref) if _GLIBCPP_RESOLVE_LIB_DEFECTS.
2000-06-28 Benjamin Kosnik <bkoz@purist.soma.redhat.com>
* testsuite/27_io/filebuf.cc: Tweak.

68
libstdc++-v3/bits/std_memory.h
View File

@ -25,19 +25,28 @@
__STL_BEGIN_NAMESPACE
#if defined(__SGI_STL_USE_AUTO_PTR_CONVERSIONS) && \
defined(__STL_MEMBER_TEMPLATES)
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
# if defined(__SGI_STL_USE_AUTO_PTR_CONVERSIONS) && \
defined(__STL_MEMBER_TEMPLATES)
template<class _Tp1> struct auto_ptr_ref {
_Tp1* _M_ptr;
auto_ptr_ref(_Tp1* __p) : _M_ptr(__p) {}
template<typename _Tp> class auto_ptr_ref {
template<typename _Tp1> friend class auto_ptr;
_Tp* _M_ptr;
void*& _M_ptr_ref;
explicit auto_ptr_ref(_Tp* __p, void*& __r) __STL_NOTHROW
: _M_ptr(__p), _M_ptr_ref(__r) {}
_Tp* _M_release() const __STL_NOTHROW {
_M_ptr_ref = 0;
return _M_ptr;
}
};
#endif
# endif /* auto ptr conversions && member templates */
#endif /* _GLIBCPP_RESOLVE_LIB_DEFECTS */
template <class _Tp> class auto_ptr {
private:
_Tp* _M_ptr;
void* _M_ptr;
public:
typedef _Tp element_type;
@ -46,8 +55,10 @@ public:
auto_ptr(auto_ptr& __a) __STL_NOTHROW : _M_ptr(__a.release()) {}
#ifdef __STL_MEMBER_TEMPLATES
template <class _Tp1> auto_ptr(auto_ptr<_Tp1>& __a) __STL_NOTHROW
: _M_ptr(__a.release()) {}
template <class _Tp1> auto_ptr(auto_ptr<_Tp1>& __a) __STL_NOTHROW {
_Tp* const __tmp = __a.release(); // Must have implicit conversion
_M_ptr = __tmp;
}
#endif /* __STL_MEMBER_TEMPLATES */
auto_ptr& operator=(auto_ptr& __a) __STL_NOTHROW {
@ -67,23 +78,24 @@ public:
// specification here, but omitting it is standard conforming. Its
// presence can be detected only if _Tp::~_Tp() throws, but (17.4.3.6/2)
// this is prohibited.
~auto_ptr() { delete _M_ptr; }
~auto_ptr() { delete this->get(); }
_Tp& operator*() const __STL_NOTHROW {
return *_M_ptr;
return this->get();
}
_Tp* operator->() const __STL_NOTHROW {
return _M_ptr;
return static_cast<_Tp*>(_M_ptr);
}
_Tp* get() const __STL_NOTHROW {
return _M_ptr;
return static_cast<_Tp*>(_M_ptr);
}
_Tp* release() __STL_NOTHROW {
_Tp* __tmp = _M_ptr;
_Tp* const __tmp = this->get();
_M_ptr = 0;
return __tmp;
}
void reset(_Tp* __p = 0) __STL_NOTHROW {
_Tp* const __tmp = this->get();
if (__p != _M_ptr) {
delete _M_ptr;
_M_ptr = __p;
@ -98,23 +110,35 @@ public:
#if defined(__SGI_STL_USE_AUTO_PTR_CONVERSIONS) && \
defined(__STL_MEMBER_TEMPLATES)
# ifndef _GLIBCPP_RESOLVE_LIB_DEFECTS
private:
template<typename _Tp1> struct auto_ptr_ref {
_Tp1* _M_ptr;
void*& _M_ptr_ref;
explicit auto_ptr_ref(_Tp1* __p, void*& __r) __STL_NOTHROW
: _M_ptr(__p), _M_ptr_ref(__r) {}
_Tp1* _M_release() const __STL_NOTHROW {
_M_ptr_ref = 0;
return _M_ptr;
}
};
# endif /* !_GLIBCPP_RESOLVE_LIB_DEFECTS */
public:
auto_ptr(auto_ptr_ref<_Tp> __ref) __STL_NOTHROW
: _M_ptr(__ref._M_ptr) {}
: _M_ptr(__ref._M_release()) {}
# ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
auto_ptr& operator=(auto_ptr_ref<_Tp> __ref) __STL_NOTHROW {
if (__ref._M_ptr != this->get()) {
delete _M_ptr;
_M_ptr = __ref._M_ptr;
}
reset(__ref._M_release());
return *this;
}
# endif /* _GLIBCPP_RESOLVE_LIB_DEFECTS */
template <class _Tp1> operator auto_ptr_ref<_Tp1>() __STL_NOTHROW
{ return auto_ptr_ref<_Tp>(this->release()); }
{ return auto_ptr_ref<_Tp1>(this->get(), _M_ptr); }
template <class _Tp1> operator auto_ptr<_Tp1>() __STL_NOTHROW
{ return auto_ptr<_Tp1>(this->release()); }
{ return auto_ptr<_Tp1>(this->release()); }
#endif /* auto ptr conversions && member templates */
};