1 files changed, 45 insertions, 0 deletions
diff --git a/3rdparty/glm/source/test/gtx/gtx_fast_square_root.cpp b/3rdparty/glm/source/test/gtx/gtx_fast_square_root.cpp
new file mode 100644
index 0000000..80d7fe4
--- /dev/null
+++ b/3rdparty/glm/source/test/gtx/gtx_fast_square_root.cpp
@@ -0,0 +1,45 @@
+#define GLM_ENABLE_EXPERIMENTAL
+#include <glm/gtx/fast_square_root.hpp>
+#include <glm/gtc/type_precision.hpp>
+#include <glm/gtc/epsilon.hpp>
+#include <glm/vector_relational.hpp>
+
+int test_fastInverseSqrt()
+{
+	int Error = 0;
+
+	Error += glm::epsilonEqual(glm::fastInverseSqrt(1.0f), 1.0f, 0.01f) ? 0 : 1;
+	Error += glm::epsilonEqual(glm::fastInverseSqrt(1.0), 1.0, 0.01) ? 0 : 1;
+	Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::vec2(1.0f)), glm::vec2(1.0f), 0.01f)) ? 0 : 1;
+	Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::dvec3(1.0)), glm::dvec3(1.0), 0.01)) ? 0 : 1;
+	Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::dvec4(1.0)), glm::dvec4(1.0), 0.01)) ? 0 : 1;
+
+	return Error;
+}
+
+int test_fastDistance()
+{
+	int Error = 0;
+
+	float const A = glm::fastDistance(0.0f, 1.0f);
+	float const B = glm::fastDistance(glm::vec2(0.0f), glm::vec2(1.0f, 0.0f));
+	float const C = glm::fastDistance(glm::vec3(0.0f), glm::vec3(1.0f, 0.0f, 0.0f));
+	float const D = glm::fastDistance(glm::vec4(0.0f), glm::vec4(1.0f, 0.0f, 0.0f, 0.0f));
+
+	Error += glm::epsilonEqual(A, 1.0f, 0.01f) ? 0 : 1;
+	Error += glm::epsilonEqual(B, 1.0f, 0.01f) ? 0 : 1;
+	Error += glm::epsilonEqual(C, 1.0f, 0.01f) ? 0 : 1;
+	Error += glm::epsilonEqual(D, 1.0f, 0.01f) ? 0 : 1;
+
+	return Error;
+}
+
+int main()
+{
+	int Error = 0;
+
+	Error += test_fastInverseSqrt();
+	Error += test_fastDistance();
+
+	return Error;
+}