Imported Upstream version 1.62.0upstream/1.62.0

Change-Id: I9d4c1ddb7b7d8f0069217ecc582700f9fda6dd4c
Signed-off-by: DongHun Kwak <dh0128.kwak@samsung.com>

1 files changed, 28 insertions, 4 deletions

diff --git a/boost/dynamic_bitset/dynamic_bitset.hpp b/boost/dynamic_bitset/dynamic_bitset.hpp
index f6002d84e8..86b5428597 100644
--- a/boost/dynamic_bitset/dynamic_bitset.hpp
+++ b/boost/dynamic_bitset/dynamic_bitset.hpp
@@ -305,6 +305,9 @@ public:
     size_type num_blocks() const BOOST_NOEXCEPT;
     size_type max_size() const BOOST_NOEXCEPT;
     bool empty() const BOOST_NOEXCEPT;
+    size_type capacity() const BOOST_NOEXCEPT;
+    void reserve(size_type num_bits);
+    void shrink_to_fit();
 
     bool is_subset_of(const dynamic_bitset& a) const;
     bool is_proper_subset_of(const dynamic_bitset& a) const;
@@ -750,15 +753,15 @@ push_back(bool bit)
 
 template <typename Block, typename Allocator>
 void dynamic_bitset<Block, Allocator>::
-pop_back() 
+pop_back()
 {
   const size_type old_num_blocks = num_blocks();
   const size_type required_blocks = calc_num_blocks(m_num_bits - 1);
-  
+
   if (required_blocks != old_num_blocks) {
-    m_bits.pop_back(); 
+    m_bits.pop_back();
   }
-    
+
   --m_num_bits;
   m_zero_unused_bits();
 }
@@ -1268,6 +1271,27 @@ inline bool dynamic_bitset<Block, Allocator>::empty() const BOOST_NOEXCEPT
 }
 
 template <typename Block, typename Allocator>
+inline typename dynamic_bitset<Block, Allocator>::size_type
+dynamic_bitset<Block, Allocator>::capacity() const BOOST_NOEXCEPT
+{
+    return m_bits.capacity() * bits_per_block;
+}
+
+template <typename Block, typename Allocator>
+inline void dynamic_bitset<Block, Allocator>::reserve(size_type num_bits)
+{
+    m_bits.reserve(calc_num_blocks(num_bits));
+}
+
+template <typename Block, typename Allocator>
+void dynamic_bitset<Block, Allocator>::shrink_to_fit()
+{
+    if (m_bits.size() < m_bits.capacity()) {
+      buffer_type(m_bits).swap(m_bits);
+    }
+}
+
+template <typename Block, typename Allocator>
 bool dynamic_bitset<Block, Allocator>::
 is_subset_of(const dynamic_bitset<Block, Allocator>& a) const
 {