add lib

enginecustom/include/glm/ext/scalar_relational.inl

@@ -0,0 +1,40 @@
+#include "../common.hpp"
+#include "../ext/scalar_int_sized.hpp"
+#include "../ext/scalar_uint_sized.hpp"
+#include "../detail/type_float.hpp"
+
+namespace glm
+{
+	template<typename genType>
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR bool equal(genType const& x, genType const& y, genType const& epsilon)
+	{
+		return abs(x - y) <= epsilon;
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR bool notEqual(genType const& x, genType const& y, genType const& epsilon)
+	{
+		return abs(x - y) > epsilon;
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR bool equal(genType const& x, genType const& y, int MaxULPs)
+	{
+		detail::float_t<genType> const a(x);
+		detail::float_t<genType> const b(y);
+
+		// Different signs means they do not match.
+		if(a.negative() != b.negative())
+			return false;
+
+		// Find the difference in ULPs.
+		typename detail::float_t<genType>::int_type const DiffULPs = abs(a.i - b.i);
+		return DiffULPs <= MaxULPs;
+	}
+
+	template<typename genType>
+	GLM_FUNC_QUALIFIER GLM_CONSTEXPR bool notEqual(genType const& x, genType const& y, int ULPs)
+	{
+		return !equal(x, y, ULPs);
+	}
+}//namespace glm