songsenand
/
cgal
mirror of https://github.com/CGAL/cgal
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Make Triple hashable

This commit is contained in:
Andreas Fabri 2016-04-15 20:49:54 +02:00
parent d48cd2c5f2
commit 7ce7a68cd0
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
STL_Extension/include/CGAL/utility.h
View File

@ -30,6 +30,7 @@
#include <CGAL/config.h>
#include <utility>
#include <functional>
#include <boost/functional/hash.hpp>
// The Triple and Quadruple classes are NOT RECOMMENDED anymore.
// We recommend that you use cpp11::tuple or cpp11::array instead
@ -128,6 +129,17 @@ public:
return internal::Tuple_get<i, Self>::get(*this);
}
friend std::size_t hash_value(Triple<T1,T2,T3> const& t)
{
std::size_t seed = 0;
boost::hash_combine(seed, t.first);
boost::hash_combine(seed, t.second);
boost::hash_combine(seed, t.third);
return seed;
}
};
template <class T1, class T2, class T3>