feedc0de/boost_fusion
1
0
Fork 0
forked from boostorg/fusion
Code Pull Requests Activity

Merge pull request #199 from Kojoley/simplify-is_same_size

Browse Source 
Simplify is_same_size
This commit is contained in:
Kohei Takahashi
2018-10-10 22:34:30 +09:00
committed by GitHub
parent 95beeba19c d1da8ee746
commit 6208b083fb
1 changed files with 6 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
include/boost/fusion/support/detail/is_same_size.hpp
View File

@ -9,20 +9,19 @@
#include <boost/fusion/support/is_sequence.hpp>
#include <boost/fusion/sequence/intrinsic/size.hpp>
#include <boost/core/enable_if.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/equal_to.hpp>
namespace boost { namespace fusion { namespace detail
{
template <typename Sequence1, typename Sequence2, typename = void, typename = void>
template <typename Sequence1, typename Sequence2, bool
= traits::is_sequence<Sequence1>::value &&
traits::is_sequence<Sequence2>::value>
struct is_same_size : mpl::false_ {};
template <typename Sequence1, typename Sequence2>
struct is_same_size<Sequence1, Sequence2,
typename enable_if<traits::is_sequence<Sequence1> >::type,
typename enable_if<traits::is_sequence<Sequence2> >::type>
: mpl::equal_to<result_of::size<Sequence1>, result_of::size<Sequence2> >
struct is_same_size<Sequence1, Sequence2, true>
: mpl::bool_<result_of::size<Sequence1>::value ==
result_of::size<Sequence2>::value>
{};
}}}