diff options
Diffstat (limited to 'libstdc++-v3/include/bits/stl_multimap.h')
| -rw-r--r-- | libstdc++-v3/include/bits/stl_multimap.h | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/libstdc++-v3/include/bits/stl_multimap.h b/libstdc++-v3/include/bits/stl_multimap.h index 6fc478774..a0fb27e21 100644 --- a/libstdc++-v3/include/bits/stl_multimap.h +++ b/libstdc++-v3/include/bits/stl_multimap.h @@ -108,7 +108,7 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER __glibcxx_class_requires(_Tp, _SGIAssignableConcept) __glibcxx_class_requires4(_Compare, bool, _Key, _Key, _BinaryFunctionConcept) - __glibcxx_class_requires2(value_type, _Alloc_value_type, _SameTypeConcept) + __glibcxx_class_requires2(value_type, _Alloc_value_type, _SameTypeConcept) public: class value_compare @@ -433,6 +433,59 @@ _GLIBCXX_BEGIN_NAMESPACE_CONTAINER { return _M_t.max_size(); } // modifiers +#ifdef __GXX_EXPERIMENTAL_CXX0X__ + /** + * @brief Build and insert a std::pair into the %multimap. + * + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * + * @return An iterator that points to the inserted (key,value) pair. + * + * This function builds and inserts a (key, value) %pair into the + * %multimap. + * Contrary to a std::map the %multimap does not rely on unique keys and + * thus multiple pairs with the same key can be inserted. + * + * Insertion requires logarithmic time. + */ + template<typename... _Args> + iterator + emplace(_Args&&... __args) + { return _M_t._M_emplace_equal(std::forward<_Args>(__args)...); } + + /** + * @brief Builds and inserts a std::pair into the %multimap. + * + * @param __pos An iterator that serves as a hint as to where the pair + * should be inserted. + * @param __args Arguments used to generate a new pair instance (see + * std::piecewise_contruct for passing arguments to each + * part of the pair constructor). + * @return An iterator that points to the inserted (key,value) pair. + * + * This function inserts a (key, value) pair into the %multimap. + * Contrary to a std::map the %multimap does not rely on unique keys and + * thus multiple pairs with the same key can be inserted. + * Note that the first parameter is only a hint and can potentially + * improve the performance of the insertion process. A bad hint would + * cause no gains in efficiency. + * + * For more on @a hinting, see: + * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt07ch17.html + * + * Insertion requires logarithmic time (if the hint is not taken). + */ + template<typename... _Args> + iterator + emplace_hint(const_iterator __pos, _Args&&... __args) + { + return _M_t._M_emplace_hint_equal(__pos, + std::forward<_Args>(__args)...); + } +#endif + /** * @brief Inserts a std::pair into the %multimap. * @param __x Pair to be inserted (see std::make_pair for easy creation |