From 4eb3fe1d7d8fd407cc7ccfa801a0311bb7dd281c Mon Sep 17 00:00:00 2001
From: Christophe <christophe@lunarg.com>
Date: Tue, 6 Feb 2024 16:24:25 +0100
Subject: [PATCH] fcomp: Fix build in C++98 mode

---
 glm/gtx/component_wise.inl      |  9 +++++----
 test/gtx/gtx_component_wise.cpp | 15 +++++++++++----
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/glm/gtx/component_wise.inl b/glm/gtx/component_wise.inl
index 3a993dbc..f8217b2e 100644
--- a/glm/gtx/component_wise.inl
+++ b/glm/gtx/component_wise.inl
@@ -1,5 +1,6 @@
 /// @ref gtx_component_wise
 
+#include "../ext/scalar_common.hpp"
 #include <limits>
 #include <cmath>
 
@@ -126,21 +127,21 @@ namespace detail
 		return Result;
 	}
 
-    template<length_t L, typename T, qualifier Q, typename = typename std::enable_if<std::is_floating_point<T>::value, T>::type>
+    template<length_t L, typename T, qualifier Q>
 	GLM_FUNC_QUALIFIER T fcompMin(vec<L, T, Q> const& v)
 	{
 		T Result(v[0]);
 		for(length_t i = 1, n = v.length(); i < n; ++i)
-			Result = std::fmin(Result, v[i]);
+			Result = fmin(Result, v[i]);
 		return Result;
 	}
 
-	template<length_t L, typename T, qualifier Q, typename = typename std::enable_if<std::is_floating_point<T>::value, T>::type>
+	template<length_t L, typename T, qualifier Q>
 	GLM_FUNC_QUALIFIER T fcompMax(vec<L, T, Q> const& v)
 	{
 		T Result(v[0]);
 		for(length_t i = 1, n = v.length(); i < n; ++i)
-			Result = std::fmax(Result, v[i]);
+			Result = fmax(Result, v[i]);
 		return Result;
 	}
 }//namespace glm
diff --git a/test/gtx/gtx_component_wise.cpp b/test/gtx/gtx_component_wise.cpp
index f8d8c781..03a91b1b 100644
--- a/test/gtx/gtx_component_wise.cpp
+++ b/test/gtx/gtx_component_wise.cpp
@@ -3,6 +3,8 @@
 #include <glm/gtc/type_precision.hpp>
 #include <glm/gtc/epsilon.hpp>
 #include <glm/gtc/constants.hpp>
+#include <glm/ext/scalar_relational.hpp>
+#include <glm/ext/scalar_constants.hpp>
 #include <limits>
 
 namespace compNormalize
@@ -105,6 +107,7 @@ namespace compScale
 	}
 }// compScale
 
+#if ((GLM_LANG & GLM_LANG_CXX11_FLAG) || (GLM_COMPILER & GLM_COMPILER_VC))
 namespace fcompMax
 {
 	static int run()
@@ -114,13 +117,13 @@ namespace fcompMax
 		{
             float const A = glm::fcompMax(glm::vec4(NAN, 0.2f, 0.5f, 1.0f));
 
-			Error += A == 1.0f ? 0 : 1;
+			Error += glm::equal(A, 1.0f, glm::epsilon<float>()) ? 0 : 1;
 		}
 
         {
             float const A = glm::fcompMax(glm::vec4(2.0f, NAN, 0.3f, 0.7f));
 
-			Error += A == 2.0f ? 0 : 1;
+			Error += glm::equal(A, 2.0f, glm::epsilon<float>()) ? 0 : 1;
 		}
 
         {
@@ -142,13 +145,13 @@ namespace fcompMin
 		{
             float const A = glm::fcompMin(glm::vec4(NAN, 0.2f, 0.5f, 1.0f));
 
-			Error += A == 0.2f ? 0 : 1;
+			Error += glm::equal(A, 0.2f, glm::epsilon<float>()) ? 0 : 1;
 		}
 
         {
             float const A = glm::fcompMin(glm::vec4(2.0f, NAN, 0.3f, 0.7f));
 
-			Error += A == 0.3f ? 0 : 1;
+			Error += glm::equal(A, 0.3f, glm::epsilon<float>()) ? 0 : 1;
 		}
 
         {
@@ -161,6 +164,7 @@ namespace fcompMin
 		return Error;
 	}
 }// fcompMin
+#endif//((GLM_LANG & GLM_LANG_CXX11_FLAG) || (GLM_COMPILER & GLM_COMPILER_VC))
 
 int main()
 {
@@ -168,8 +172,11 @@ int main()
 
 	Error += compNormalize::run();
 	Error += compScale::run();
+
+#if ((GLM_LANG & GLM_LANG_CXX11_FLAG) || (GLM_COMPILER & GLM_COMPILER_VC))
 	Error += fcompMax::run();
 	Error += fcompMin::run();
+#endif//((GLM_LANG & GLM_LANG_CXX11_FLAG) || (GLM_COMPILER & GLM_COMPILER_VC))
 
 	return Error;
 }