boostorg/container
1
0
Fork 1
mirror of https://github.com/boostorg/container.git synced 2025-07-31 13:07:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

Add "back_free_capacity" utility

Browse Source
This commit is contained in:
Ion Gaztañaga
2020-08-09 23:54:52 +02:00
parent d271c6384d
commit e02b5c9bde
1 changed files with 25 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
include/boost/container/detail/is_contiguous_container.hpp
View File

@ -26,6 +26,14 @@
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MAX 0
#include <boost/intrusive/detail/has_member_function_callable_with.hpp>
//back_free_capacity
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_FUNCNAME back_free_capacity
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_BEG namespace boost { namespace container { namespace back_free_capacity_detail {
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_NS_END }}}
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MIN 0
#define BOOST_INTRUSIVE_HAS_MEMBER_FUNCTION_CALLABLE_WITH_MAX 0
#include <boost/intrusive/detail/has_member_function_callable_with.hpp>
namespace boost {
namespace container {
namespace dtl {
@ -40,6 +48,23 @@ struct is_contiguous_container
has_member_function_callable_with_data<const Container>::value;
};
template < class Container
, bool = boost::container::back_free_capacity_detail::
has_member_function_callable_with_back_free_capacity<const Container>::value>
struct back_free_capacity
{
static typename Container::size_type get(const Container &c)
{ return c.back_free_capacity(); }
};
template < class Container>
struct back_free_capacity<Container, false>
{
static typename Container::size_type get(const Container &c)
{ return c.capacity() - c.size(); }
};
} //namespace dtl {
} //namespace container {
} //namespace boost {