| /* Test for the C++ implementation of iseqsig. |
| Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C 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; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #define _GNU_SOURCE 1 |
| #include <math.h> |
| #include <stdio.h> |
| |
| #include <limits> |
| |
| /* There is no NaN for _Float128 in std::numeric_limits. |
| Include ieee754_float128.h and use the bitfields in the union |
| ieee854_float128.ieee_nan to build a NaN. */ |
| #if __HAVE_DISTINCT_FLOAT128 |
| # include <ieee754_float128.h> |
| #endif |
| |
| #include <support/check.h> |
| |
| static void |
| check (int actual, int expected, const char *actual_expr, int line) |
| { |
| if (actual != expected) |
| { |
| support_record_failure (); |
| printf ("%s:%d: error: %s\n", __FILE__, line, actual_expr); |
| printf ("%s:%d: expected: %d\n", __FILE__, line, expected); |
| printf ("%s:%d: actual: %d\n", __FILE__, line, actual); |
| } |
| } |
| |
| #define CHECK(actual, expected) \ |
| check ((actual), (expected), #actual, __LINE__) |
| |
| template <class T1, class T2> |
| static void |
| check_type () |
| { |
| T1 t1 = 0; |
| T2 t2 = 0; |
| CHECK (iseqsig (t1, t2), 1); |
| |
| t2 = 1; |
| CHECK (iseqsig (t1, t2), 0); |
| |
| if (std::numeric_limits<T1>::has_quiet_NaN |
| && std::numeric_limits<T2>::has_quiet_NaN) |
| { |
| CHECK (iseqsig (std::numeric_limits<T1>::quiet_NaN (), t2), 0); |
| CHECK (iseqsig (t1, std::numeric_limits<T2>::quiet_NaN ()), 0); |
| CHECK (iseqsig (std::numeric_limits<T1>::quiet_NaN (), |
| std::numeric_limits<T2>::quiet_NaN ()), 0); |
| } |
| } |
| |
| #if __HAVE_DISTINCT_FLOAT128 |
| static void |
| check_float128 () |
| { |
| ieee854_float128 q1, q2, q3_nan; |
| |
| q1.d = 0; |
| q2.d = 1; |
| q3_nan.ieee_nan.negative = 0; |
| q3_nan.ieee_nan.exponent = 0x7FFF; |
| q3_nan.ieee_nan.quiet_nan = 1; |
| q3_nan.ieee_nan.mantissa0 = 0x0000; |
| q3_nan.ieee_nan.mantissa1 = 0x00000000; |
| q3_nan.ieee_nan.mantissa2 = 0x00000000; |
| q3_nan.ieee_nan.mantissa3 = 0x00000000; |
| |
| CHECK (iseqsig (q1.d, q1.d), 1); |
| CHECK (iseqsig (q1.d, q2.d), 0); |
| CHECK (iseqsig (q1.d, q3_nan.d), 0); |
| CHECK (iseqsig (q3_nan.d, q3_nan.d), 0); |
| } |
| #endif |
| |
| static int |
| do_test (void) |
| { |
| check_type<float, float> (); |
| check_type<float, double> (); |
| check_type<float, long double> (); |
| check_type<double, float> (); |
| check_type<double, double> (); |
| check_type<double, long double> (); |
| check_type<long double, float> (); |
| check_type<long double, double> (); |
| check_type<long double, long double> (); |
| #if __HAVE_DISTINCT_FLOAT128 |
| check_float128 (); |
| #endif |
| return 0; |
| } |
| |
| #include <support/test-driver.c> |