From 0e780a5efdeb41ebe57d9ce6de1c0315caf18b09 Mon Sep 17 00:00:00 2001
From: Christophe Riccio <christopheri@unity3d.com>
Date: Sun, 22 May 2016 18:04:32 +0200
Subject: [PATCH] - Use Cuda built-in function for abs function implementation
 with Cuda compiler

---
 glm/detail/func_common.inl | 11 +++++++++++
 readme.md                  |  1 +
 2 files changed, 12 insertions(+)

diff --git a/glm/detail/func_common.inl b/glm/detail/func_common.inl
index 5dbcb72a..08a82aae 100644
--- a/glm/detail/func_common.inl
+++ b/glm/detail/func_common.inl
@@ -29,6 +29,17 @@ namespace detail
 		}
 	};
 
+	#if GLM_COMPILER & GLM_COMPILER_CUDA
+	template <>
+	struct compute_abs<float, true>
+	{
+		GLM_FUNC_QUALIFIER static float call(float x)
+		{
+			return fabsf(x);
+		}
+	};
+	#endif
+
 	template <typename genFIType>
 	struct compute_abs<genFIType, false>
 	{
diff --git a/readme.md b/readme.md
index 09d53a1f..645b45f0 100644
--- a/readme.md
+++ b/readme.md
@@ -71,6 +71,7 @@ glm::mat4 camera(float Translate, glm::vec2 const & Rotate)
 - Improved GLM_FORCE_EXPLICIT_CTOR coverage #481
 - Improved OpenMP support detection for Clang, GCC, ICC and VC
 - Added constexpr for *vec*, *mat*, *quat* and *dual_quat* types #493
+- Use Cuda built-in function for abs function implementation with Cuda compiler
 
 ##### Fixes:
 - Fixed GTX_extended_min_max filename typo #386