Viewing file:  pr53752.C (4.99 KB) -rw-r--r--
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// { dg-do compile }
// { dg-options "-g -Wno-return-type" }
typedef unsigned int uint32_t;
typedef unsigned long int uint64_t;
namespace mpl_ {
template< typename T, T N > struct integral_c {
static const T value = N;
};
}
namespace mpl {
using namespace mpl_;
};
template <class T, T val> struct integral_constant : public mpl::integral_c<T, val> {
typedef integral_constant<bool,false> type;
};
template< typename T > struct is_lvalue_reference : public ::integral_constant<bool,false> {
};
template< typename T > struct is_rvalue_reference : public ::integral_constant<bool,false> {
};
namespace type_traits {
template <bool b1, bool b2, bool b3 = false, bool b4 = false, bool b5 = false, bool b6 = false, bool b7 = false> struct ice_or;
template <> struct ice_or<false, false, false, false, false, false, false> {
static const bool value = false;
};
}
template <typename T> struct is_reference_impl {
static const bool value = (::type_traits::ice_or< ::is_lvalue_reference<T>::value, ::is_rvalue_reference<T>::value >::value) ;
};
template< typename T > struct is_reference : public ::integral_constant<bool,::is_reference_impl<T>::value> {
};
struct na {
};
namespace mpl {
template< bool C , typename T1 , typename T2 > struct if_c {
typedef T2 type;
};
template< typename T1 = na , typename T2 = na , typename T3 = na > struct if_ {
typedef if_c< static_cast<bool>(T1::value) , T2 , T3 > almost_type_;
typedef typename almost_type_::type type;
};
}
namespace optional_detail {
template<class T> struct types_when_isnt_ref {
typedef T & reference_type ;
}
;
template<class T> struct types_when_is_ref {
}
;
struct optional_tag {
}
;
template<class T> class optional_base : public optional_tag {
typedef types_when_isnt_ref<T> types_when_not_ref ;
typedef types_when_is_ref<T> types_when_ref ;
protected :
typedef typename is_reference<T>::type is_reference_predicate ;
typedef typename mpl::if_<is_reference_predicate,types_when_ref,types_when_not_ref>::type types ;
typedef typename types::reference_type reference_type ;
}
;
}
template<class T> class optional : public optional_detail::optional_base<T> {
typedef optional_detail::optional_base<T> base ;
public :
typedef typename base::reference_type reference_type ;
reference_type operator *() {
}
};
namespace noncopyable_ {
class noncopyable {
};
}
typedef noncopyable_::noncopyable noncopyable;
template<class T> class shared_ptr {
public:
T * operator-> () const {
}
};
typedef uint64_t block_address;
class transaction_manager : noncopyable {
public:
typedef shared_ptr<transaction_manager> ptr;
};
template <typename ValueType> class NoOpRefCounter {
};
struct uint64_traits {
};
namespace btree_detail {
class shadow_spine : private noncopyable {
public:
shadow_spine(transaction_manager::ptr tm) : tm_(tm) {
}
transaction_manager::ptr tm_;
};
}
template <unsigned Levels, typename ValueTraits> class btree {
public:
typedef shared_ptr<btree<Levels, ValueTraits> > ptr;
typedef uint64_t key[Levels];
typedef typename ValueTraits::value_type value_type;
typedef optional<value_type> maybe_value;
btree(typename transaction_manager::ptr tm, typename ValueTraits::ref_counter rc);
maybe_value lookup(key const &key) const;
void insert(key const &key, typename ValueTraits::value_type const &value);
template <typename ValueTraits2> bool insert_location(btree_detail::shadow_spine &spine, block_address block, uint64_t key, int *index);
typename transaction_manager::ptr tm_;
block_address root_;
typename ValueTraits::ref_counter rc_;
};
template <unsigned Levels, typename ValueTraits> void btree<Levels, ValueTraits>:: insert(key const &key, typename ValueTraits::value_type const &value) {
using namespace btree_detail;
block_address block = root_;
int index = 0;
shadow_spine spine(tm_);
for (unsigned level = 0;
level < Levels - 1;
++level) {
bool need_insert = insert_location<uint64_traits>(spine, block, key[level], &index);
if (need_insert) {
btree<Levels - 1, ValueTraits> new_tree(tm_, rc_);
}
}
}
struct device_details_disk {
}
__attribute__ ((packed));
struct device_details {
};
struct device_details_traits {
typedef device_details value_type;
typedef NoOpRefCounter<device_details> ref_counter;
};
typedef uint32_t thin_dev_t;
typedef btree<1, device_details_traits> detail_tree;
struct metadata {
typedef shared_ptr<metadata> ptr;
detail_tree::ptr details_;
};
class thin_pool;
class thin {
void set_snapshot_time(uint32_t time);
thin_dev_t dev_;
thin_pool *pool_;
};
class thin_pool {
public:
metadata::ptr md_;
};
void thin::set_snapshot_time(uint32_t time) {
uint64_t key[1] = {
dev_ };
optional<device_details> mdetail = pool_->md_->details_->lookup(key);
pool_->md_->details_->insert(key, *mdetail);
}
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