From 218764ee1f0a21e1faf20ed314ffafeae79eb170 Mon Sep 17 00:00:00 2001
From: Srinivas Vasudevan <srvasude@gmail.com>
Date: Fri, 2 Dec 2016 14:13:01 -0800
Subject: Added support for expm1 in Eigen.

---
 unsupported/Eigen/CXX11/src/Tensor/TensorBase.h | 6 ++++++
 unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h | 1 +
 2 files changed, 7 insertions(+)

(limited to 'unsupported/Eigen/CXX11/src/Tensor')

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorBase.h b/unsupported/Eigen/CXX11/src/Tensor/TensorBase.h
index 7a45a5cf4..fbe340820 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorBase.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorBase.h
@@ -185,6 +185,12 @@ class TensorBase<Derived, ReadOnlyAccessors>
       return unaryExpr(internal::scalar_exp_op<Scalar>());
     }
 
+    EIGEN_DEVICE_FUNC
+    EIGEN_STRONG_INLINE const TensorCwiseUnaryOp<internal::scalar_expm1_op<Scalar>, const Derived>
+    expm1() const {
+      return unaryExpr(internal::scalar_expm1_op<Scalar>());
+    }
+
     EIGEN_DEVICE_FUNC
     EIGEN_STRONG_INLINE const TensorCwiseUnaryOp<internal::scalar_log_op<Scalar>, const Derived>
     log() const {
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h b/unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h
index 25ce471f9..b5ef31d55 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorMeta.h
@@ -75,6 +75,7 @@ struct PacketType<half, GpuDevice> {
     HasSqrt   = 1,
     HasRsqrt  = 1,
     HasExp    = 1,
+    HasExpm1  = 0,
     HasLog    = 1,
     HasLog1p  = 0,
     HasLog10  = 0,
-- 
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