Initial commit - Release 0.0.1librin-0.0.1

1 files changed, 172 insertions, 0 deletions

diff --git a/test/float.c b/test/float.c
new file mode 100644
index 0000000..9940ff4
--- /dev/null
+++ b/test/float.c
@@ -0,0 +1,172 @@
+/*
+ * The Rin Library – library "conformance" tests
+ *
+ * Copyright (C) 2015 Gediminas Jakutis
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; version 2.1
+ * of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include "test.h"
+#include "float_test_private.h"
+
+struct test_results float_test(void)
+{
+	struct test_results ret;
+
+	ret = rin_signbitf_test();
+	ret = rin_signbitd_test();
+	ret = rin_float_to_hexstring_test();
+	ret = rin_double_to_hexstring_test();
+	ret = rin_compare_float_test();
+	ret = rin_compare_double_test();
+
+	return ret;
+}
+
+static struct test_results rin_signbitf_test(void)
+{
+	struct test_results ret;
+	size_t i;
+	static const float in[] = { 1.0f, -1.0f, 987656.4321f, -987656.4321f };
+	static const uint32_t expected[] = { 0, 0x80000000u, 0, 0x80000000u };
+
+	for (i = 0; i < 4; ++i) {
+		ret = ok(rin_signbitf(in[i]) != expected[i],
+				"%s: expected: %"PRIu32", got: %"PRIu32" (%1.8e)",
+				__func__,
+				expected[i],
+				rin_signbitf(in[i]),
+				in[i]);
+	}
+
+	return ret;
+}
+
+static struct test_results rin_signbitd_test(void)
+{
+	struct test_results ret;
+	size_t i;
+	static const double in[] = { 1.0, -1.0, 987656.4321, -987656.4321 };
+	static const uint64_t expected[] = { 0, 0x8000000000000000ull, 0, 0x8000000000000000ull };
+
+	for (i = 0; i < 4; ++i) {
+		ret = ok(rin_signbitd(in[i]) != expected[i],
+				"%s: expected: %"PRIu64", got: %"PRIu64" (%1.16e)",
+				__func__,
+				expected[i],
+				rin_signbitf(in[i]),
+				in[i]);
+	}
+
+	return ret;
+}
+
+static struct test_results rin_float_to_hexstring_test(void)
+{
+	struct test_results ret;
+	size_t i;
+	static const float in[] = { 1.0f, -1.0f, 98765.4321f, -98765.4321f };
+	static const char *expected_default[] = { "0x3f800000", "0xbf800000", "0x47c0e6b7", "0xc7c0e6b7" };
+	static const char *expected_noprefix[] = { "3f800000", "bf800000", "47c0e6b7", "c7c0e6b7" };
+	char buffer[16] = { '\0' };
+
+	for (i = 0; i < 4; ++i) {
+		ret = ok(strcmp(rin_float_to_hexstring(in[i], buffer, RIN_HEXSTRING_DEFAULT), expected_default[i]),
+				"%s: expected: %s, got: %s (%1.8e)",
+				__func__,
+				expected_default[i],
+				rin_float_to_hexstring(in[i], buffer, RIN_HEXSTRING_DEFAULT),
+				in[i]);
+
+		ret = ok(strcmp(rin_float_to_hexstring(in[i], buffer, RIN_HEXSTRING_NOPREFIX), expected_noprefix[i]),
+				"%s: expected: %s, got: %s (%1.8e)",
+				__func__,
+				expected_noprefix[i],
+				rin_float_to_hexstring(in[i], buffer, RIN_HEXSTRING_NOPREFIX),
+				in[i]);
+	}
+
+	return ret;
+}
+
+
+static struct test_results rin_double_to_hexstring_test(void)
+{
+	struct test_results ret;
+	size_t i;
+	static const double in[] = { 1.0, -1.0, 98765.4321, -98765.4321 };
+	static const char *expected_default[] = { "0x3ff0000000000000", "0xbff0000000000000", "0x40f81cd6e9e1b08a", "0xc0f81cd6e9e1b08a" };
+	static const char *expected_noprefix[] = { "3ff0000000000000", "bff0000000000000", "40f81cd6e9e1b08a", "c0f81cd6e9e1b08a" };
+	char buffer[32] = { '\0' };
+
+	for (i = 0; i < 4; ++i) {
+		ret = ok(strcmp(rin_double_to_hexstring(in[i], buffer, RIN_HEXSTRING_DEFAULT), expected_default[i]),
+				"%s: expected: %s, got: %s (%1.16e)",
+				__func__,
+				expected_default[i],
+				rin_double_to_hexstring(in[i], buffer, RIN_HEXSTRING_DEFAULT),
+				in[i]);
+
+		ret = ok(strcmp(rin_double_to_hexstring(in[i], buffer, RIN_HEXSTRING_NOPREFIX), expected_noprefix[i]),
+				"%s: expected: %s, got: %s (%1.16e)",
+				__func__,
+				expected_noprefix[i],
+				rin_double_to_hexstring(in[i], buffer, RIN_HEXSTRING_NOPREFIX),
+				in[i]);
+	}
+
+	return ret;
+}
+
+static struct test_results rin_compare_float_test(void)
+{
+	struct test_results ret;
+	size_t i;
+	static const float a[] = {  0.0f, 1.0f, -1.0f, 1.0f,       -1.0f, 1.0f,      98765.4321f, 98765.4321f,  98765.4321f };
+	static const float b[] = { -0.0f, 1.0f,  1.0f, 1.0000001f, -9.8f, 1.000001f, 98765.436f,  98777.7777f, -98765.4321f };
+	static const unsigned int expected[] = { 0, 0, 1, 0, 1, 1, 0, 1, 1};
+
+	for (i = 0; i < 4; ++i) {
+		ret = ok(rin_compare_float(a[i], b[i], 2) != expected[i],
+				"%s: expected: %s, got: %s (%1.8e, %1.8e)",
+				__func__,
+				expected[i] ? "non-equal" : "equal",
+				rin_compare_float(a[i], b[i], 2) ? "non-equal" : "equal",
+				a[i], b[i]);
+	}
+
+	return ret;
+}
+
+
+static struct test_results rin_compare_double_test(void)
+{
+	struct test_results ret;
+	size_t i;
+	static const double a[] = {  0.0, 1.0, -1.0, 1.0,                -1.0f, 1.0,      98765.4321,         98765.4321,  98765.4321 };
+	static const double b[] = { -0.0, 1.0,  1.0, 1.0000000000000003, -9.8f, 1.000001, 98765.43210000002,  98777.7777, -98765.4321 };
+	static const unsigned int expected[] = { 0, 0, 1, 0, 1, 1, 0, 1, 1};
+
+	for (i = 0; i < 4; ++i) {
+		ret = ok(rin_compare_double(a[i], b[i], 2) != expected[i],
+				"%s: expected: %s, got: %s (%1.16e, %1.16e)",
+				__func__,
+				expected[i] ? "non-equal" : "equal",
+				rin_compare_double(a[i], b[i], 2) ? "non-equal" : "equal",
+				a[i], b[i]);
+	}
+
+	return ret;
+}