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-rw-r--r--Eigen/src/Core/arch/CUDA/PacketMathHalf.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/Eigen/src/Core/arch/CUDA/PacketMathHalf.h b/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
index d670f3718..ae54225f8 100644
--- a/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
+++ b/Eigen/src/Core/arch/CUDA/PacketMathHalf.h
@@ -15,7 +15,7 @@ namespace Eigen {
namespace internal {
// Most of the following operations require arch >= 3.0
-#if defined(EIGEN_HAS_CUDA_FP16) && defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 300
+#if defined(EIGEN_HAS_CUDA_FP16) && defined(__CUDACC__) && defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 300
template<> struct is_arithmetic<half2> { enum { value = true }; };