1 files changed, 99 insertions, 0 deletions
diff --git a/3rdparty/glm/source/test/ext/ext_vector_ulp.cpp b/3rdparty/glm/source/test/ext/ext_vector_ulp.cpp
new file mode 100644
index 0000000..6ebd1a1
--- /dev/null
+++ b/3rdparty/glm/source/test/ext/ext_vector_ulp.cpp
@@ -0,0 +1,99 @@
+#include <glm/ext/vector_ulp.hpp>
+#include <glm/ext/vector_relational.hpp>
+#include <glm/ext/vector_float4.hpp>
+#include <glm/ext/vector_double4.hpp>
+#include <glm/ext/vector_int4.hpp>
+
+static int test_ulp_float_dist()
+{
+	int Error = 0;
+
+	glm::vec4 const A(1.0f);
+
+	glm::vec4 const B = glm::nextFloat(A);
+	Error += glm::any(glm::notEqual(A, B, 0)) ? 0 : 1;
+	glm::vec4 const C = glm::prevFloat(B);
+	Error += glm::all(glm::equal(A, C, 0)) ? 0 : 1;
+
+	glm::ivec4 const D = glm::floatDistance(A, B);
+	Error += D == glm::ivec4(1) ? 0 : 1;
+	glm::ivec4 const E = glm::floatDistance(A, C);
+	Error += E == glm::ivec4(0) ? 0 : 1;
+
+	return Error;
+}
+
+static int test_ulp_float_step()
+{
+	int Error = 0;
+
+	glm::vec4 const A(1.0f);
+
+	for(int i = 10; i < 1000; i *= 10)
+	{
+		glm::vec4 const B = glm::nextFloat(A, i);
+		Error += glm::any(glm::notEqual(A, B, 0)) ? 0 : 1;
+		glm::vec4 const C = glm::prevFloat(B, i);
+		Error += glm::all(glm::equal(A, C, 0)) ? 0 : 1;
+
+		glm::ivec4 const D = glm::floatDistance(A, B);
+		Error += D == glm::ivec4(i) ? 0 : 1;
+		glm::ivec4 const E = glm::floatDistance(A, C);
+		Error += E == glm::ivec4(0) ? 0 : 1;
+	}
+
+	return Error;
+}
+
+static int test_ulp_double_dist()
+{
+	int Error = 0;
+
+	glm::dvec4 const A(1.0);
+
+	glm::dvec4 const B = glm::nextFloat(A);
+	Error += glm::any(glm::notEqual(A, B, 0)) ? 0 : 1;
+	glm::dvec4 const C = glm::prevFloat(B);
+	Error += glm::all(glm::equal(A, C, 0)) ? 0 : 1;
+
+	glm::ivec4 const D(glm::floatDistance(A, B));
+	Error += D == glm::ivec4(1) ? 0 : 1;
+	glm::ivec4 const E = glm::floatDistance(A, C);
+	Error += E == glm::ivec4(0) ? 0 : 1;
+
+	return Error;
+}
+
+static int test_ulp_double_step()
+{
+	int Error = 0;
+
+	glm::dvec4 const A(1.0);
+
+	for(int i = 10; i < 1000; i *= 10)
+	{
+		glm::dvec4 const B = glm::nextFloat(A, i);
+		Error += glm::any(glm::notEqual(A, B, 0)) ? 0 : 1;
+		glm::dvec4 const C = glm::prevFloat(B, i);
+		Error += glm::all(glm::equal(A, C, 0)) ? 0 : 1;
+
+		glm::ivec4 const D(glm::floatDistance(A, B));
+		Error += D == glm::ivec4(i) ? 0 : 1;
+		glm::ivec4 const E(glm::floatDistance(A, C));
+		Error += E == glm::ivec4(0) ? 0 : 1;
+	}
+
+	return Error;
+}
+
+int main()
+{
+	int Error = 0;
+
+	Error += test_ulp_float_dist();
+	Error += test_ulp_float_step();
+	Error += test_ulp_double_dist();
+	Error += test_ulp_double_step();
+
+	return Error;
+}