1 | /* Test for the C++ implementation of iseqsig. |
2 | Copyright (C) 2017-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #define _GNU_SOURCE 1 |
20 | #include <math.h> |
21 | #include <stdio.h> |
22 | |
23 | #include <limits> |
24 | |
25 | /* There is no NaN for _Float128 in std::numeric_limits. |
26 | Include ieee754_float128.h and use the bitfields in the union |
27 | ieee854_float128.ieee_nan to build a NaN. */ |
28 | #if __HAVE_DISTINCT_FLOAT128 |
29 | # include <ieee754_float128.h> |
30 | #endif |
31 | |
32 | #include <support/check.h> |
33 | |
34 | static void |
35 | check (int actual, int expected, const char *actual_expr, int line) |
36 | { |
37 | if (actual != expected) |
38 | { |
39 | support_record_failure (); |
40 | printf (format: "%s:%d: error: %s\n" , __FILE__, line, actual_expr); |
41 | printf (format: "%s:%d: expected: %d\n" , __FILE__, line, expected); |
42 | printf (format: "%s:%d: actual: %d\n" , __FILE__, line, actual); |
43 | } |
44 | } |
45 | |
46 | #define CHECK(actual, expected) \ |
47 | check ((actual), (expected), #actual, __LINE__) |
48 | |
49 | template <class T1, class T2> |
50 | static void |
51 | check_type () |
52 | { |
53 | T1 t1 = 0; |
54 | T2 t2 = 0; |
55 | CHECK (iseqsig (t1, t2), 1); |
56 | |
57 | t2 = 1; |
58 | CHECK (iseqsig (t1, t2), 0); |
59 | |
60 | if (std::numeric_limits<T1>::has_quiet_NaN |
61 | && std::numeric_limits<T2>::has_quiet_NaN) |
62 | { |
63 | CHECK (iseqsig (std::numeric_limits<T1>::quiet_NaN (), t2), 0); |
64 | CHECK (iseqsig (t1, std::numeric_limits<T2>::quiet_NaN ()), 0); |
65 | CHECK (iseqsig (std::numeric_limits<T1>::quiet_NaN (), |
66 | std::numeric_limits<T2>::quiet_NaN ()), 0); |
67 | } |
68 | } |
69 | |
70 | #if __HAVE_DISTINCT_FLOAT128 |
71 | static void |
72 | check_float128 () |
73 | { |
74 | ieee854_float128 q1, q2, q3_nan; |
75 | |
76 | q1.d = 0; |
77 | q2.d = 1; |
78 | q3_nan.ieee_nan.negative = 0; |
79 | q3_nan.ieee_nan.exponent = 0x7FFF; |
80 | q3_nan.ieee_nan.quiet_nan = 1; |
81 | q3_nan.ieee_nan.mantissa0 = 0x0000; |
82 | q3_nan.ieee_nan.mantissa1 = 0x00000000; |
83 | q3_nan.ieee_nan.mantissa2 = 0x00000000; |
84 | q3_nan.ieee_nan.mantissa3 = 0x00000000; |
85 | |
86 | CHECK (iseqsig (q1.d, q1.d), 1); |
87 | CHECK (iseqsig (q1.d, q2.d), 0); |
88 | CHECK (iseqsig (q1.d, q3_nan.d), 0); |
89 | CHECK (iseqsig (q3_nan.d, q3_nan.d), 0); |
90 | } |
91 | #endif |
92 | |
93 | static int |
94 | do_test (void) |
95 | { |
96 | check_type<float, float> (); |
97 | check_type<float, double> (); |
98 | check_type<float, long double> (); |
99 | check_type<double, float> (); |
100 | check_type<double, double> (); |
101 | check_type<double, long double> (); |
102 | check_type<long double, float> (); |
103 | check_type<long double, double> (); |
104 | check_type<long double, long double> (); |
105 | #if __HAVE_DISTINCT_FLOAT128 |
106 | check_float128 (); |
107 | #endif |
108 | return 0; |
109 | } |
110 | |
111 | #include <support/test-driver.c> |
112 | |