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Hashing was only officially introduced in c++11. Therefore only define an implementation of the hash function for float16 if c++11 is enabled.

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This commit is contained in:
Benoit Steiner 2016-03-31 14:44:55 -07:00
parent 92b7f7b650
commit 0ea7ab4f62
1 changed files with 2 additions and 0 deletions
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Eigen/src/Core/arch/CUDA/Half.h
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@ -415,12 +415,14 @@ using ::sqrt;
using ::floor; using ::floor;
using ::ceil; using ::ceil;
#if __cplusplus > 199711L
template <> template <>
struct hash<Eigen::half> { struct hash<Eigen::half> {
size_t operator()(const Eigen::half& a) const { size_t operator()(const Eigen::half& a) const {
return std::hash<unsigned short>()(a.x); return std::hash<unsigned short>()(a.x);
} }
}; };
#endif
} // end namespace std } // end namespace std