1 files changed, 14 insertions, 8 deletions

diff --git a/external/include/glm/gtx/scalar_multiplication.hpp b/external/include/glm/gtx/scalar_multiplication.hpp
index 695e841..b73edf6 100644
--- a/external/include/glm/gtx/scalar_multiplication.hpp
+++ b/external/include/glm/gtx/scalar_multiplication.hpp
@@ -2,7 +2,9 @@
 /// @file glm/gtx/scalar_multiplication.hpp
 /// @author Joshua Moerman
 ///
-/// @brief Enables scalar multiplication for all types
+/// Include <glm/gtx/scalar_multiplication.hpp> to use the features of this extension.
+///
+/// Enables scalar multiplication for all types
 ///
 /// Since GLSL is very strict about types, the following (often used) combinations do not work:
 ///    double * vec4
@@ -14,6 +16,10 @@
 
 #include "../detail/setup.hpp"
 
+#ifndef GLM_ENABLE_EXPERIMENTAL
+#	error "GLM: GLM_GTX_scalar_multiplication is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it."
+#endif
+
 #if !GLM_HAS_TEMPLATE_ALIASES && !(GLM_COMPILER & GLM_COMPILER_GCC)
 #	error "GLM_GTX_scalar_multiplication requires C++11 support or alias templates and if not support for GCC"
 #endif
@@ -26,28 +32,28 @@
 
 namespace glm
 {
-	template <typename T, typename Vec>
+	template<typename T, typename Vec>
 	using return_type_scalar_multiplication = typename std::enable_if<
 		!std::is_same<T, float>::value       // T may not be a float
 		&& std::is_arithmetic<T>::value, Vec // But it may be an int or double (no vec3 or mat3, ...)
 	>::type;
 
 #define GLM_IMPLEMENT_SCAL_MULT(Vec) \
-	template <typename T> \
+	template<typename T> \
 	return_type_scalar_multiplication<T, Vec> \
-	operator*(T const & s, Vec rh){ \
+	operator*(T const& s, Vec rh){ \
 		return rh *= static_cast<float>(s); \
 	} \
 	 \
-	template <typename T> \
+	template<typename T> \
 	return_type_scalar_multiplication<T, Vec> \
-	operator*(Vec lh, T const & s){ \
+	operator*(Vec lh, T const& s){ \
 		return lh *= static_cast<float>(s); \
 	} \
 	 \
-	template <typename T> \
+	template<typename T> \
 	return_type_scalar_multiplication<T, Vec> \
-	operator/(Vec lh, T const & s){ \
+	operator/(Vec lh, T const& s){ \
 		return lh *= 1.0f / s; \
 	}