From ae24cae249a1f39395e83b47a1f9a885d64fe6c3 Mon Sep 17 00:00:00 2001
From: Serhii Yaskovets <yaskovet@mpi-cbg.de>
Date: Wed, 2 Aug 2023 18:39:10 +0200
Subject: [PATCH] Fix template substitution failure for Graph_CSR with no edge
---
src/memory_ly/memory_conf.hpp | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/src/memory_ly/memory_conf.hpp b/src/memory_ly/memory_conf.hpp
index 7394049a..6a588036 100644
--- a/src/memory_ly/memory_conf.hpp
+++ b/src/memory_ly/memory_conf.hpp
@@ -257,13 +257,27 @@ struct memory_traits_lin
* \return a reference to the object selected
*
*/
- template<unsigned int p, typename data_type, typename g1_type, typename key_type>
+ template<unsigned int p, typename data_type, typename g1_type, typename key_type, typename std::enable_if<!std::is_same<data_type, memory_c<boost::fusion::vector<>, 1, memory>>::value,int>::type = 0>
__host__ __device__ static inline auto get(data_type & data_, const g1_type & g1, const key_type & v1) -> decltype(boost::fusion::at_c<p>(data_.mem_r.operator[](g1.LinId(v1)))) &
{
return boost::fusion::at_c<p>(data_.mem_r.operator[](g1.LinId(v1)));
}
+ /*! \brief Return a reference to the selected element.
+ * SFINAE is used to hande CSR graphs, where boost::fusion::at_c<p>(boost::fusion::vector<>) breaks in boost 1.8* onwards
+ *
+ * \param data object from where to take the element
+ * \param g1 grid information
+ * \param v1 element id
+ *
+ * \return a reference to the object selected
+ *
+ */
+ template<unsigned int p, typename data_type, typename g1_type, typename key_type, typename std::enable_if<std::is_same<data_type, memory_c<boost::fusion::vector<>, 1, memory>>::value,int>::type = 0>
+ __host__ __device__ static inline void get(data_type & data_, const g1_type & g1, const key_type & v1) {}
+
/*! \brief Return a reference to the selected element
+ * SFINAE is used to hande CSR graphs, where boost::fusion::at_c<p>(boost::fusion::vector<>) breaks in boost 1.8* onwards
*
* \param data object from where to take the element
* \param g1 grid information
--
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