From 5c13765ee333bb78b5c7baeb515eed97c59b6c1d Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Thu, 14 Apr 2016 10:24:52 -0700
Subject: [PATCH] Added ability to printf fp16

---
 Eigen/src/Core/arch/CUDA/Half.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Eigen/src/Core/arch/CUDA/Half.h b/Eigen/src/Core/arch/CUDA/Half.h
index 482b654ac..8249ce2eb 100644
--- a/Eigen/src/Core/arch/CUDA/Half.h
+++ b/Eigen/src/Core/arch/CUDA/Half.h
@@ -510,6 +510,11 @@ static EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC int (isfinite)(const Eigen::half& a
 
 namespace std {
 
+ostream& operator << (ostream& os, const Eigen::half& v) {
+  os << static_cast<float>(v);
+  return os;
+}
+
 #if __cplusplus > 199711L
 template <>
 struct hash<Eigen::half> {