1 | /* Test iseqsig with excess precision. |
2 | Copyright (C) 2016-2022 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 | #include <float.h> |
20 | #include <math.h> |
21 | #include <stdio.h> |
22 | |
23 | static int |
24 | do_test (void) |
25 | { |
26 | int result = 0; |
27 | |
28 | if (FLT_EVAL_METHOD == 1 || FLT_EVAL_METHOD == 2 || FLT_EVAL_METHOD > 32) |
29 | { |
30 | /* Excess precision for float. */ |
31 | if (iseqsig (1.0f, 1.0f + (float) DBL_EPSILON)) |
32 | { |
33 | puts (s: "iseqsig removes excess precision float -> double" ); |
34 | result = 1; |
35 | } |
36 | else |
37 | puts (s: "iseqsig preserves excess precision float -> double" ); |
38 | if (iseqsig (__builtin_inff (), FLT_MAX * FLT_MAX)) |
39 | { |
40 | puts (s: "iseqsig removes excess range float -> double" ); |
41 | result = 1; |
42 | } |
43 | else |
44 | puts (s: "iseqsig preserves excess range float -> double" ); |
45 | } |
46 | |
47 | if (FLT_EVAL_METHOD == 2 || FLT_EVAL_METHOD > 64) |
48 | { |
49 | /* Excess precision for float and double. */ |
50 | if (iseqsig (1.0f, 1.0f + (float) LDBL_EPSILON)) |
51 | { |
52 | puts (s: "iseqsig removes excess precision float -> long double" ); |
53 | result = 1; |
54 | } |
55 | else |
56 | puts (s: "iseqsig preserves excess precision float -> long double" ); |
57 | if (iseqsig (1.0, 1.0 + (double) LDBL_EPSILON)) |
58 | { |
59 | puts (s: "iseqsig removes excess precision double -> long double" ); |
60 | result = 1; |
61 | } |
62 | else |
63 | puts (s: "iseqsig preserves excess precision double -> long double" ); |
64 | if (LDBL_MAX_EXP >= 2 * DBL_MAX_EXP) |
65 | { |
66 | if (iseqsig (__builtin_inf (), DBL_MAX * DBL_MAX)) |
67 | { |
68 | puts (s: "iseqsig removes excess range double -> long double" ); |
69 | result = 1; |
70 | } |
71 | else |
72 | puts (s: "iseqsig preserves excess range double -> long double" ); |
73 | } |
74 | } |
75 | |
76 | return result; |
77 | } |
78 | |
79 | #define TEST_FUNCTION do_test () |
80 | #include "../test-skeleton.c" |
81 | |