From 225f178a6aa154f2749006223210d3a6bfb1e746 Mon Sep 17 00:00:00 2001
From: RohacekD <RohacekD@gmail.com>
Date: Tue, 8 Dec 2020 01:51:22 +0100
Subject: [PATCH] Adding constexpr to quaternion comparison functions

lessThan, lessThanEqual, greaterThan, greaterThanEqual
---
 glm/gtc/quaternion.hpp | 8 ++++----
 glm/gtc/quaternion.inl | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/glm/gtc/quaternion.hpp b/glm/gtc/quaternion.hpp
index 359e072b..314449eb 100644
--- a/glm/gtc/quaternion.hpp
+++ b/glm/gtc/quaternion.hpp
@@ -112,7 +112,7 @@ namespace glm
 	///
 	/// @see ext_quaternion_relational
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL vec<4, bool, Q> lessThan(qua<T, Q> const& x, qua<T, Q> const& y);
+	GLM_FUNC_DECL GLM_CONSTEXPR vec<4, bool, Q> lessThan(qua<T, Q> const& x, qua<T, Q> const& y);
 
 	/// Returns the component-wise comparison of result x <= y.
 	///
@@ -121,7 +121,7 @@ namespace glm
 	///
 	/// @see ext_quaternion_relational
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL vec<4, bool, Q> lessThanEqual(qua<T, Q> const& x, qua<T, Q> const& y);
+	GLM_FUNC_DECL GLM_CONSTEXPR vec<4, bool, Q> lessThanEqual(qua<T, Q> const& x, qua<T, Q> const& y);
 
 	/// Returns the component-wise comparison of result x > y.
 	///
@@ -130,7 +130,7 @@ namespace glm
 	///
 	/// @see ext_quaternion_relational
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL vec<4, bool, Q> greaterThan(qua<T, Q> const& x, qua<T, Q> const& y);
+	GLM_FUNC_DECL GLM_CONSTEXPR vec<4, bool, Q> greaterThan(qua<T, Q> const& x, qua<T, Q> const& y);
 
 	/// Returns the component-wise comparison of result x >= y.
 	///
@@ -139,7 +139,7 @@ namespace glm
 	///
 	/// @see ext_quaternion_relational
 	template<typename T, qualifier Q>
-	GLM_FUNC_DECL vec<4, bool, Q> greaterThanEqual(qua<T, Q> const& x, qua<T, Q> const& y);
+	GLM_FUNC_DECL GLM_CONSTEXPR vec<4, bool, Q> greaterThanEqual(qua<T, Q> const& x, qua<T, Q> const& y);
 
 	/// Build a look at quaternion based on the default handedness.
 	///
diff --git a/glm/gtc/quaternion.inl b/glm/gtc/quaternion.inl
index e1ef0321..5f328816 100644
--- a/glm/gtc/quaternion.inl
+++ b/glm/gtc/quaternion.inl
@@ -129,7 +129,7 @@ namespace glm
 	}
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER vec<4, bool, Q> lessThan(qua<T, Q> const& x, qua<T, Q> const& y)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<4, bool, Q> lessThan(qua<T, Q> const& x, qua<T, Q> const& y)
 	{
 		vec<4, bool, Q> Result;
 		for(length_t i = 0; i < x.length(); ++i)
@@ -138,7 +138,7 @@ namespace glm
 	}
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER vec<4, bool, Q> lessThanEqual(qua<T, Q> const& x, qua<T, Q> const& y)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<4, bool, Q> lessThanEqual(qua<T, Q> const& x, qua<T, Q> const& y)
 	{
 		vec<4, bool, Q> Result;
 		for(length_t i = 0; i < x.length(); ++i)
@@ -147,7 +147,7 @@ namespace glm
 	}
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER vec<4, bool, Q> greaterThan(qua<T, Q> const& x, qua<T, Q> const& y)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<4, bool, Q> greaterThan(qua<T, Q> const& x, qua<T, Q> const& y)
 	{
 		vec<4, bool, Q> Result;
 		for(length_t i = 0; i < x.length(); ++i)
@@ -156,7 +156,7 @@ namespace glm
 	}
 
 	template<typename T, qualifier Q>
-	GLM_FUNC_QUALIFIER vec<4, bool, Q> greaterThanEqual(qua<T, Q> const& x, qua<T, Q> const& y)
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR vec<4, bool, Q> greaterThanEqual(qua<T, Q> const& x, qua<T, Q> const& y)
 	{
 		vec<4, bool, Q> Result;
 		for(length_t i = 0; i < x.length(); ++i)