Subject: [Boost-commit] svn:boost r52885 - in trunk: boost/unordered boost/unordered/detail libs/unordered/test/unordered
From: daniel_james_at_[hidden]
Date: 2009-05-10 17:25:11
Author: danieljames
Date: 2009-05-10 17:25:09 EDT (Sun, 10 May 2009)
New Revision: 52885
URL: http://svn.boost.org/trac/boost/changeset/52885
Log:
Merge emplace support for sandbox - but without move support.
Text files modified:
trunk/boost/unordered/detail/hash_table.hpp | 20 ++
trunk/boost/unordered/detail/hash_table_impl.hpp | 388 +++++++++++++++++++++++++++++----------
trunk/boost/unordered/unordered_map.hpp | 88 +++++++++
trunk/boost/unordered/unordered_set.hpp | 87 ++++++++
trunk/libs/unordered/test/unordered/compile_tests.hpp | 8
trunk/libs/unordered/test/unordered/unnecessary_copy_tests.cpp | 62 ++++--
6 files changed, 517 insertions(+), 136 deletions(-)
Modified: trunk/boost/unordered/detail/hash_table.hpp
==============================================================================
--- trunk/boost/unordered/detail/hash_table.hpp (original)
+++ trunk/boost/unordered/detail/hash_table.hpp 2009-05-10 17:25:09 EDT (Sun, 10 May 2009)
@@ -13,6 +13,10 @@
#include <boost/config.hpp>
+#if !defined(BOOST_UNORDERED_EMPLACE_LIMIT)
+#define BOOST_UNORDERED_EMPLACE_LIMIT 5
+#endif
+
#include <cstddef>
#include <boost/config/no_tr1/cmath.hpp>
#include <algorithm>
@@ -32,6 +36,7 @@
#include <boost/type_traits/remove_const.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/and.hpp>
+#include <boost/mpl/or.hpp>
#include <boost/mpl/not.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/utility/swap.hpp>
@@ -40,6 +45,21 @@
#include <boost/mpl/aux_/config/eti.hpp>
+#if !(defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL))
+
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/enum_binary_params.hpp>
+#include <boost/preprocessor/repetition/repeat_from_to.hpp>
+
+#define BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ BOOST_PP_ENUM_PARAMS_Z(z, n, typename Arg)
+#define BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ BOOST_PP_ENUM_BINARY_PARAMS_Z(z, n, Arg, const& arg)
+#define BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ BOOST_PP_ENUM_PARAMS_Z(z, n, arg)
+
+#endif
+
#if BOOST_WORKAROUND(__BORLANDC__, <= 0x0582)
#define BOOST_UNORDERED_BORLAND_BOOL(x) (bool)(x)
#else
Modified: trunk/boost/unordered/detail/hash_table_impl.hpp
==============================================================================
--- trunk/boost/unordered/detail/hash_table_impl.hpp (original)
+++ trunk/boost/unordered/detail/hash_table_impl.hpp 2009-05-10 17:25:09 EDT (Sun, 10 May 2009)
@@ -183,15 +183,19 @@
void construct_preamble()
{
- BOOST_ASSERT(!node_);
- node_constructed_ = false;
- value_constructed_ = false;
-
- node_ = allocators_.node_alloc_.allocate(1);
-
- allocators_.node_alloc_.construct(node_, node());
- node_constructed_ = true;
-
+ if(!node_) {
+ node_constructed_ = false;
+ value_constructed_ = false;
+
+ node_ = allocators_.node_alloc_.allocate(1);
+ allocators_.node_alloc_.construct(node_, node());
+ node_constructed_ = true;
+ }
+ else {
+ BOOST_ASSERT(node_constructed_ && value_constructed_);
+ BOOST_UNORDERED_DESTRUCT(&node_->value(), value_type);
+ value_constructed_ = false;
+ }
}
#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
@@ -202,32 +206,134 @@
new(node_->address()) value_type(std::forward<Args>(args)...);
value_constructed_ = true;
}
-#else
- template <typename V>
- void construct(V const& v)
+
+#if defined(__GLIBCPP__) || defined(__GLIBCXX__)
+ // The GCC C++0x standard library implementation does not have
+ // a single argument pair constructor, so this works around that.
+
+ template <typename Arg>
+ void construct(Arg&& arg)
{
construct_preamble();
- new(node_->address()) value_type(v);
+ construct_impl(std::forward<Arg>(arg),
+ (value_type const*) 0,
+ (typename boost::remove_reference<Arg>::type const*) 0);
value_constructed_ = true;
}
-#endif
- template <typename K, typename M>
- void construct_pair(K const& k, M*)
+ template <
+ typename Arg,
+ typename ValueType,
+ typename Type>
+ void construct_impl(Arg&& arg, ValueType const*, Type const*)
{
- BOOST_ASSERT(!node_);
- node_constructed_ = false;
- value_constructed_ = false;
+ new(node_->address()) value_type(std::forward<Arg>(arg));
+ }
- node_ = allocators_.node_alloc_.allocate(1);
+ template <
+ typename Arg,
+ typename ValueFirst, typename ValueSecond,
+ typename TypeFirst, typename TypeSecond>
+ void construct_impl(
+ Arg&& arg,
+ std::pair<ValueFirst, ValueSecond> const*,
+ std::pair<TypeFirst, TypeSecond> const*)
+ {
+ new(node_->address()) value_type(std::forward<Arg>(arg));
+ }
- allocators_.node_alloc_.construct(node_, node());
- node_constructed_ = true;
+ template <
+ typename Arg,
+ typename ValueFirst, typename ValueSecond,
+ typename Type>
+ void construct_impl(
+ Arg&& arg,
+ std::pair<ValueFirst, ValueSecond> const*,
+ Type const*)
+ {
+ new(node_->address()) value_type(std::forward<Arg>(arg), ValueSecond());
+ }
+#endif
+
+#else
- new(node_->address()) value_type(k, M());
+ void construct()
+ {
+ construct_preamble();
+ new(node_->address()) value_type;
value_constructed_ = true;
}
+#define BOOST_UNORDERED_CONSTRUCT_IMPL(z, n, _) \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ void construct( \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ construct_preamble(); \
+ construct_impl( \
+ (value_type*) 0, \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ); \
+ value_constructed_ = true; \
+ } \
+ \
+ template < \
+ typename T, \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ void construct_impl( \
+ T*, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ new(node_->address()) value_type( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ); \
+ } \
+ \
+
+#define BOOST_UNORDERED_CONSTRUCT_IMPL2(z, n, _) \
+ template <typename First, typename Second, typename Key, \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ void construct_impl( \
+ std::pair<First, Second>*, \
+ Key const& k, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ new(node_->address()) value_type(k, \
+ Second( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ) \
+ ); \
+ }
+
+ BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
+ BOOST_UNORDERED_CONSTRUCT_IMPL, _)
+ BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
+ BOOST_UNORDERED_CONSTRUCT_IMPL2, _)
+
+ template <typename First, typename Second, typename T1, typename T2>
+ void construct_impl(std::pair<First, Second>*,
+ std::pair<T1, T2> const& arg0)
+ {
+ new(node_->address()) value_type(arg0);
+ }
+
+ template <typename First, typename Second, typename Key>
+ void construct_impl(std::pair<First, Second>*, Key const& k)
+ {
+ new(node_->address()) value_type(First(k), Second());
+ }
+
+#undef BOOST_UNORDERED_CONSTRUCT_IMPL
+
+#endif
+
node_ptr get() const
{
BOOST_ASSERT(node_);
@@ -1424,19 +1530,29 @@
}
// key extractors
+ //
+ // no throw
+ //
+ // 'extract_key' is called with the emplace parameters to return a
+ // key if available or 'no_key' is one isn't and will need to be
+ // constructed.
struct no_key {
no_key() {}
template <class T> no_key(T const&) {}
};
- // no throw
-
+
+ // If emplace is called with no arguments then there obviously
+ // isn't an available key.
+
static no_key extract_key()
{
return no_key();
}
+ // Emplace or insert was called with the value type.
+
static key_type const& extract_key(value_type const& v)
{
return extract(v, (type_wrapper<value_type>*)0);
@@ -1454,6 +1570,9 @@
return v.first;
}
+ // For maps, if emplace is called with just a key, then it's the value type
+ // with the second value default initialised.
+
template <typename Arg>
static BOOST_DEDUCED_TYPENAME
boost::mpl::if_<boost::is_same<Arg, key_type>, key_type const&, no_key>::type
@@ -1462,6 +1581,9 @@
return k;
}
+ // For a map, the argument might be a pair with the key as the first
+ // part and a convertible value as the second part.
+
template <typename First, typename Second>
static BOOST_DEDUCED_TYPENAME
boost::mpl::if_<
@@ -1478,9 +1600,24 @@
return v.first;
}
+ // For maps if there is more than one argument, the key can be the first argument.
+
#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
+ template <typename Arg, typename Arg1, typename... Args>
+ static BOOST_DEDUCED_TYPENAME
+ boost::mpl::if_<
+ boost::mpl::and_<
+ boost::mpl::not_<boost::is_same<value_type, key_type> >,
+ boost::is_same<Arg, key_type>
+ >,
+ key_type const&, no_key
+ >::type extract_key(Arg const& k, Arg1 const&, Args const&...)
+ {
+ return k;
+ }
- template <typename Arg, typename... Args>
+#else
+ template <typename Arg, typename Arg1>
static BOOST_DEDUCED_TYPENAME
boost::mpl::if_<
boost::mpl::and_<
@@ -1488,7 +1625,7 @@
boost::is_same<Arg, key_type>
>,
key_type const&, no_key
- >::type extract_key(Arg const& k, Args const&...)
+ >::type extract_key(Arg const& k, Arg1 const&)
{
return k;
}
@@ -1632,34 +1769,39 @@
#else
- // Emplace (equivalent key containers)
-
- // if hash function throws, basic exception safety
- // strong otherwise
- iterator_base emplace(value_type const& v)
- {
- // Create the node before rehashing in case it throws an
- // exception (need strong safety in such a case).
- node_constructor a(data_.allocators_);
- a.construct(v);
-
- return emplace_impl(a);
+#define BOOST_UNORDERED_INSERT_IMPL(z, n, _) \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator_base emplace( \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ node_constructor a(data_.allocators_); \
+ a.construct( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ); \
+ return emplace_impl(a); \
+ } \
+ \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator_base emplace_hint(iterator_base const& it, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ node_constructor a(data_.allocators_); \
+ a.construct( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ); \
+ return emplace_hint_impl(it, a); \
}
- // Emplace (equivalent key containers)
-
- // if hash function throws, basic exception safety
- // strong otherwise
- iterator_base emplace_hint(iterator_base const& it, value_type const& v)
- {
- // Create the node before rehashing in case it throws an
- // exception (need strong safety in such a case).
- node_constructor a(data_.allocators_);
- a.construct(v);
-
- return emplace_hint_impl(it, a);
- }
+ BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
+ BOOST_UNORDERED_INSERT_IMPL, _)
+#undef BOOST_UNORDERED_INSERT_IMPL
#endif
iterator_base emplace_impl(node_constructor& a)
@@ -1788,7 +1930,7 @@
// Create the node before rehashing in case it throws an
// exception (need strong safety in such a case).
node_constructor a(data_.allocators_);
- a.construct_pair(k, (mapped_type*) 0);
+ a.construct(k);
// reserve has basic exception safety if the hash function
// throws, strong otherwise.
@@ -1805,10 +1947,6 @@
// Emplace (unique keys)
// (I'm using an overloaded emplace for both 'insert' and 'emplace')
- //
- // TODO:
- // For sets: create a local key without creating the node?
- // For maps: use the first argument as the key.
// if hash function throws, basic exception safety
// strong otherwise
@@ -1878,59 +2016,97 @@
return emplace_impl_with_node(a);
}
#else
-
- // Emplace (unique keys)
-
- // if hash function throws, basic exception safety
- // strong otherwise
- std::pair<iterator_base, bool> emplace(value_type const& v)
+ template <typename Arg0>
+ std::pair<iterator_base, bool> emplace(Arg0 const& arg0)
{
- // No side effects in this initial code
- key_type const& k = extract_key(v);
- size_type hash_value = hash_function()(k);
- bucket_ptr bucket = data_.bucket_ptr_from_hash(hash_value);
- link_ptr pos = find_iterator(bucket, k);
-
- if (BOOST_UNORDERED_BORLAND_BOOL(pos)) {
- // Found an existing key, return it (no throw).
- return std::pair<iterator_base, bool>(
- iterator_base(bucket, pos), false);
-
- } else {
- // Doesn't already exist, add to bucket.
- // Side effects only in this block.
-
- // Create the node before rehashing in case it throws an
- // exception (need strong safety in such a case).
- node_constructor a(data_.allocators_);
- a.construct(v);
-
- // reserve has basic exception safety if the hash function
- // throws, strong otherwise.
- if(reserve_for_insert(size() + 1))
- bucket = data_.bucket_ptr_from_hash(hash_value);
-
- // Nothing after this point can throw.
-
- link_ptr n = data_.link_node_in_bucket(a, bucket);
-
- return std::pair<iterator_base, bool>(
- iterator_base(bucket, n), true);
- }
+ return emplace_impl(extract_key(arg0), arg0);
}
- // Emplace (unique keys)
-
- // if hash function throws, basic exception safety
- // strong otherwise
- iterator_base emplace_hint(iterator_base const& it, value_type const& v)
+ template <typename Arg0>
+ iterator_base emplace_hint(iterator_base const& it, Arg0 const& arg0)
{
- if(it != data_.end() && equal(extract_key(v), *it))
- return it;
- else
- return emplace(v).first;
+ return emplace_impl(extract_key(arg0), arg0).first;
+ }
+
+
+#define BOOST_UNORDERED_INSERT_IMPL(z, n, _) \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ std::pair<iterator_base, bool> emplace( \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return emplace_impl( \
+ extract_key(arg0, arg1), \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ); \
+ } \
+ \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator_base emplace_hint(iterator_base const& it, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return emplace_impl( \
+ extract_key(arg0, arg1), \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ).first; \
+ } \
+ BOOST_UNORDERED_INSERT_IMPL2(z, n, _)
+
+#define BOOST_UNORDERED_INSERT_IMPL2(z, n, _) \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ std::pair<iterator_base, bool> emplace_impl(key_type const& k, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ size_type hash_value = hash_function()(k); \
+ bucket_ptr bucket = data_.bucket_ptr_from_hash(hash_value); \
+ link_ptr pos = find_iterator(bucket, k); \
+ \
+ if (BOOST_UNORDERED_BORLAND_BOOL(pos)) { \
+ return std::pair<iterator_base, bool>( \
+ iterator_base(bucket, pos), false); \
+ } else { \
+ node_constructor a(data_.allocators_); \
+ a.construct( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ); \
+ \
+ if(reserve_for_insert(size() + 1)) \
+ bucket = data_.bucket_ptr_from_hash(hash_value); \
+ \
+ return std::pair<iterator_base, bool>(iterator_base(bucket, \
+ data_.link_node_in_bucket(a, bucket)), true); \
+ } \
+ } \
+ \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ std::pair<iterator_base, bool> emplace_impl(no_key, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ node_constructor a(data_.allocators_); \
+ a.construct( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ ); \
+ return emplace_impl_with_node(a); \
}
+ BOOST_UNORDERED_INSERT_IMPL2(1, 1, _)
+
+ BOOST_PP_REPEAT_FROM_TO(2, BOOST_UNORDERED_EMPLACE_LIMIT,
+ BOOST_UNORDERED_INSERT_IMPL, _)
+
+#undef BOOST_UNORDERED_INSERT_IMPL
+
#endif
std::pair<iterator_base, bool> emplace_impl_with_node(node_constructor& a)
@@ -1958,7 +2134,6 @@
}
}
-
// Insert from iterators (unique keys)
template <typename I>
@@ -2137,8 +2312,9 @@
key_type const& k) const
{
link_ptr it = data_.begin(bucket);
- while (BOOST_UNORDERED_BORLAND_BOOL(it) && !equal(k, data::get_value(it)))
+ while (BOOST_UNORDERED_BORLAND_BOOL(it) && !equal(k, data::get_value(it))) {
it = data::next_group(it);
+ }
return it;
}
Modified: trunk/boost/unordered/unordered_map.hpp
==============================================================================
--- trunk/boost/unordered/unordered_map.hpp (original)
+++ trunk/boost/unordered/unordered_map.hpp 2009-05-10 17:25:09 EDT (Sun, 10 May 2009)
@@ -232,6 +232,50 @@
{
return iterator(base.emplace_hint(get(hint), std::forward<Args>(args)...));
}
+#else
+
+ std::pair<iterator, bool> emplace(value_type const& v = value_type())
+ {
+ return boost::unordered_detail::pair_cast<iterator, bool>(
+ base.emplace(v));
+ }
+
+ iterator emplace_hint(const_iterator hint, value_type const& v = value_type())
+ {
+ return iterator(base.emplace_hint(get(hint), v));
+ }
+
+#define BOOST_UNORDERED_EMPLACE(z, n, _) \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ std::pair<iterator, bool> emplace( \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return boost::unordered_detail::pair_cast<iterator, bool>( \
+ base.emplace( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ )); \
+ } \
+ \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator emplace_hint(const_iterator hint, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return iterator(base.emplace_hint(get(hint), \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ )); \
+ }
+
+ BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
+ BOOST_UNORDERED_EMPLACE, _)
+
+#undef BOOST_UNORDERED_EMPLACE
+
#endif
std::pair<iterator, bool> insert(const value_type& obj)
@@ -638,6 +682,50 @@
{
return iterator(base.emplace_hint(get(hint), std::forward<Args>(args)...));
}
+#else
+
+ iterator emplace(value_type const& v = value_type())
+ {
+ return iterator(base.emplace(v));
+ }
+
+ iterator emplace_hint(const_iterator hint, value_type const& v = value_type())
+ {
+ return iterator(base.emplace_hint(get(hint), v));
+ }
+
+
+#define BOOST_UNORDERED_EMPLACE(z, n, _) \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator emplace( \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return iterator( \
+ base.emplace( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ )); \
+ } \
+ \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator emplace_hint(const_iterator hint, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return iterator(base.emplace_hint(get(hint), \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ )); \
+ }
+
+ BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
+ BOOST_UNORDERED_EMPLACE, _)
+
+#undef BOOST_UNORDERED_EMPLACE
+
#endif
iterator insert(const value_type& obj)
Modified: trunk/boost/unordered/unordered_set.hpp
==============================================================================
--- trunk/boost/unordered/unordered_set.hpp (original)
+++ trunk/boost/unordered/unordered_set.hpp 2009-05-10 17:25:09 EDT (Sun, 10 May 2009)
@@ -231,6 +231,50 @@
return iterator(
base.emplace_hint(get(hint), std::forward<Args>(args)...));
}
+#else
+
+ std::pair<iterator, bool> emplace(value_type const& v = value_type())
+ {
+ return boost::unordered_detail::pair_cast<iterator, bool>(
+ base.emplace(v));
+ }
+
+ iterator emplace_hint(const_iterator hint, value_type const& v = value_type())
+ {
+ return iterator(base.emplace_hint(get(hint), v));
+ }
+
+#define BOOST_UNORDERED_EMPLACE(z, n, _) \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ std::pair<iterator, bool> emplace( \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return boost::unordered_detail::pair_cast<iterator, bool>( \
+ base.emplace( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ )); \
+ } \
+ \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator emplace_hint(const_iterator hint, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return iterator(base.emplace_hint(get(hint), \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ )); \
+ }
+
+ BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
+ BOOST_UNORDERED_EMPLACE, _)
+
+#undef BOOST_UNORDERED_EMPLACE
+
#endif
std::pair<iterator, bool> insert(const value_type& obj)
@@ -607,6 +651,49 @@
{
return iterator(base.emplace_hint(get(hint), std::forward<Args>(args)...));
}
+#else
+
+ iterator emplace(value_type const& v = value_type())
+ {
+ return iterator(base.emplace(v));
+ }
+
+ iterator emplace_hint(const_iterator hint, value_type const& v = value_type())
+ {
+ return iterator(base.emplace_hint(get(hint), v));
+ }
+
+#define BOOST_UNORDERED_EMPLACE(z, n, _) \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator emplace( \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return iterator( \
+ base.emplace( \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ )); \
+ } \
+ \
+ template < \
+ BOOST_UNORDERED_TEMPLATE_ARGS(z, n) \
+ > \
+ iterator emplace_hint(const_iterator hint, \
+ BOOST_UNORDERED_FUNCTION_PARAMS(z, n) \
+ ) \
+ { \
+ return iterator(base.emplace_hint(get(hint), \
+ BOOST_UNORDERED_CALL_PARAMS(z, n) \
+ )); \
+ }
+
+ BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
+ BOOST_UNORDERED_EMPLACE, _)
+
+#undef BOOST_UNORDERED_EMPLACE
+
#endif
iterator insert(const value_type& obj)
Modified: trunk/libs/unordered/test/unordered/compile_tests.hpp
==============================================================================
--- trunk/libs/unordered/test/unordered/compile_tests.hpp (original)
+++ trunk/libs/unordered/test/unordered/compile_tests.hpp 2009-05-10 17:25:09 EDT (Sun, 10 May 2009)
@@ -151,14 +151,12 @@
r.insert(std::pair<Key const, T>(k, v));
-#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
Key k_lvalue(k);
T v_lvalue(v);
r.emplace(k, v);
r.emplace(k_lvalue, v_lvalue);
r.emplace(rvalue(k), rvalue(v));
-#endif
}
template <class X>
@@ -175,9 +173,7 @@
{
typedef BOOST_DEDUCED_TYPENAME X::iterator iterator;
test::check_return_type<std::pair<iterator, bool> >::equals(r.insert(t));
-#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
test::check_return_type<std::pair<iterator, bool> >::equals(r.emplace(t));
-#endif
}
template <class X, class T>
@@ -185,9 +181,7 @@
{
typedef BOOST_DEDUCED_TYPENAME X::iterator iterator;
test::check_return_type<iterator>::equals(r.insert(t));
-#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
test::check_return_type<iterator>::equals(r.emplace(t));
-#endif
}
template <class X, class Key, class T>
@@ -289,9 +283,7 @@
const_iterator q = a.cbegin();
test::check_return_type<iterator>::equals(a.insert(q, t));
-#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
test::check_return_type<iterator>::equals(a.emplace_hint(q, t));
-#endif
a.insert(i, j);
test::check_return_type<size_type>::equals(a.erase(k));
Modified: trunk/libs/unordered/test/unordered/unnecessary_copy_tests.cpp
==============================================================================
--- trunk/libs/unordered/test/unordered/unnecessary_copy_tests.cpp (original)
+++ trunk/libs/unordered/test/unordered/unnecessary_copy_tests.cpp 2009-05-10 17:25:09 EDT (Sun, 10 May 2009)
@@ -68,12 +68,22 @@
#define COPY_COUNT(n) \
if(count_copies::copies != n) { \
BOOST_ERROR("Wrong number of copies."); \
- std::cerr<<"Number of copies: "<<count_copies::copies<<std::endl; \
+ std::cerr<<"Number of copies: "<<count_copies::copies<<" expecting: "<<n<<std::endl; \
}
#define MOVE_COUNT(n) \
if(count_copies::moves != n) { \
BOOST_ERROR("Wrong number of moves."); \
- std::cerr<<"Number of moves: "<<count_copies::moves<<std::endl; \
+ std::cerr<<"Number of moves: "<<count_copies::moves<<" expecting: "<<n<<std::endl; \
+ }
+#define COPY_COUNT_RANGE(a, b) \
+ if(count_copies::copies < a || count_copies::copies > b) { \
+ BOOST_ERROR("Wrong number of copies."); \
+ std::cerr<<"Number of copies: "<<count_copies::copies<<" expecting: ["<<a<<", "<<b<<"]"<<std::endl; \
+ }
+#define MOVE_COUNT_RANGE(a, b) \
+ if(count_copies::moves < a || count_copies::moves > b) { \
+ BOOST_ERROR("Wrong number of moves."); \
+ std::cerr<<"Number of moves: "<<count_copies::copies<<" expecting: ["<<a<<", "<<b<<"]"<<std::endl; \
}
namespace unnecessary_copy_tests
@@ -99,7 +109,6 @@
UNORDERED_TEST(unnecessary_copy_insert_test,
((set)(multiset)(map)(multimap)))
-#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
template <class T>
void unnecessary_copy_emplace_test(T*)
{
@@ -117,9 +126,19 @@
reset();
T x;
x.emplace(source<BOOST_DEDUCED_TYPENAME T::value_type>());
+#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
COPY_COUNT(1);
+#else
+ COPY_COUNT(2);
+#endif
}
+ UNORDERED_TEST(unnecessary_copy_emplace_test,
+ ((set)(multiset)(map)(multimap)))
+ UNORDERED_TEST(unnecessary_copy_emplace_rvalue_test,
+ ((set)(multiset)(map)(multimap)))
+
+#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
template <class T>
void unnecessary_copy_emplace_move_test(T*)
{
@@ -131,13 +150,11 @@
COPY_COUNT(1); MOVE_COUNT(1);
}
- UNORDERED_TEST(unnecessary_copy_emplace_test,
- ((set)(multiset)(map)(multimap)))
- UNORDERED_TEST(unnecessary_copy_emplace_rvalue_test,
- ((set)(multiset)(map)(multimap)))
UNORDERED_TEST(unnecessary_copy_emplace_move_test,
((set)(multiset)(map)(multimap)))
+#endif
+
UNORDERED_AUTO_TEST(unnecessary_copy_emplace_set_test)
{
reset();
@@ -172,10 +189,12 @@
x.emplace(source<count_copies>());
COPY_COUNT(1); MOVE_COUNT(0);
+#if defined(BOOST_HAS_RVALUE_REFS)
// No move should take place.
reset();
x.emplace(std::move(a));
COPY_COUNT(0); MOVE_COUNT(0);
+#endif
// Just in case a did get moved...
count_copies b;
@@ -194,8 +213,10 @@
// the existing element.
//
// Note to self: If copy_count == 0 it's an error not an optimization.
+ // TODO: Devise a better test.
reset();
+
x.emplace(b, b);
COPY_COUNT(1); MOVE_COUNT(0);
}
@@ -232,24 +253,22 @@
x.emplace(source<std::pair<count_copies, count_copies> >());
COPY_COUNT(2); MOVE_COUNT(0);
- count_copies part;
- reset();
- std::pair<count_copies const&, count_copies const&> a_ref(part, part);
- x.emplace(a_ref);
- COPY_COUNT(0); MOVE_COUNT(0);
+ // TODO: This doesn't work on older versions of gcc.
+ //count_copies part;
+ std::pair<count_copies const, count_copies> b;
+ //reset();
+ //std::pair<count_copies const&, count_copies const&> a_ref(part, part);
+ //x.emplace(a_ref);
+ //COPY_COUNT(0); MOVE_COUNT(0);
+#if defined(BOOST_HAS_RVALUE_REFS)
// No move should take place.
+ // (since a is already in the container)
reset();
x.emplace(std::move(a));
COPY_COUNT(0); MOVE_COUNT(0);
+#endif
- // Just in case a did get moved
- std::pair<count_copies const, count_copies> b;
-
- // This test requires a C++0x std::pair. Which gcc hasn't got yet.
- //reset();
- //x.emplace(b.first.tag_);
- //COPY_COUNT(2); MOVE_COUNT(0);
//
// 2 arguments
@@ -269,10 +288,9 @@
COPY_COUNT(1); MOVE_COUNT(0);
reset();
- x.emplace(b.first.tag_, b.second.tag_);
- COPY_COUNT(2); MOVE_COUNT(0);
+ x.emplace(count_copies(b.first.tag_), count_copies(b.second.tag_));
+ COPY_COUNT(2); MOVE_COUNT(0);
}
-#endif
}
RUN_TESTS()