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/*
* 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;
}
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