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83ffe9cd | 1 | // Copyright (C) 2009-2023 Free Software Foundation, Inc. |
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2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 3, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING3. If not see | |
16 | // <http://www.gnu.org/licenses/>. | |
17 | ||
02ebbe2f | 18 | // { dg-require-effective-target dfp } |
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19 | |
20 | // ISO/IEC TR 24733 3.2.2.2 Conversion from floating-point type (decimal32). | |
21 | // ISO/IEC TR 24733 3.2.3.2 Conversion from floating-point type (decimal64). | |
22 | // ISO/IEC TR 24733 3.2.4.2 Conversion from floating-point type (decimal128). | |
23 | ||
24 | #include <decimal/decimal> | |
25 | #include <testsuite_hooks.h> | |
26 | ||
27 | using namespace std::decimal; | |
28 | ||
29 | void | |
30 | conversion_from_float_32 () | |
31 | { | |
32 | decimal32 d32(123); | |
33 | decimal64 d64(234); | |
34 | decimal128 d128(345); | |
35 | float f = 456.F; | |
36 | double d = 567.; | |
37 | long double ld = 678.L; | |
38 | ||
39 | d32 = (decimal32) d64; | |
40 | VERIFY (d32 == make_decimal32 (234LL, 0)); | |
41 | d32 = (decimal32) d128; | |
42 | VERIFY (d32 == make_decimal32 (345LL, 0)); | |
43 | d32 = (decimal32) f; | |
44 | VERIFY (d32 == make_decimal32 (456LL, 0)); | |
45 | d32 = (decimal32) d; | |
46 | VERIFY (d32 == make_decimal32 (567LL, 0)); | |
47 | d32 = (decimal32) ld; | |
48 | VERIFY (d32 == make_decimal32 (678LL, 0)); | |
49 | } | |
50 | ||
51 | void | |
52 | conversion_from_float_64 () | |
53 | { | |
54 | decimal32 d32(123); | |
55 | decimal64 d64(234); | |
56 | decimal128 d128(345); | |
57 | float f = 456.F; | |
58 | double d = 567.; | |
59 | long double ld = 678.L; | |
60 | ||
61 | d64 = d32; | |
62 | VERIFY (d64 == make_decimal64 (123LL, 0)); | |
63 | d64 = (decimal64) d128; | |
64 | VERIFY (d64 == make_decimal64 (345LL, 0)); | |
65 | d64 = (decimal64) f; | |
66 | VERIFY (d64 == make_decimal64 (456LL, 0)); | |
67 | d64 = (decimal64) d; | |
68 | VERIFY (d64 == make_decimal64 (567LL, 0)); | |
69 | d64 = (decimal64) ld; | |
70 | VERIFY (d64 == make_decimal64 (678LL, 0)); | |
71 | } | |
72 | ||
73 | void | |
74 | conversion_from_float_128 () | |
75 | { | |
76 | decimal32 d32(123); | |
77 | decimal64 d64(234); | |
78 | decimal128 d128(345); | |
79 | float f = 456.F; | |
80 | double d = 567.; | |
81 | long double ld = 678.L; | |
82 | ||
83 | d128 = d32; | |
84 | VERIFY (d128 == make_decimal128 (123LL, 0)); | |
85 | d128 = d64; | |
86 | VERIFY (d128 == make_decimal128 (234LL, 0)); | |
87 | d128 = (decimal128) f; | |
88 | VERIFY (d128 == make_decimal128 (456LL, 0)); | |
89 | d128 = (decimal128) d; | |
90 | VERIFY (d128 == make_decimal128 (567LL, 0)); | |
91 | d128 = (decimal128) ld; | |
92 | VERIFY (d128 == make_decimal128 (678LL, 0)); | |
93 | } | |
94 | ||
95 | int | |
96 | main () | |
97 | { | |
98 | conversion_from_float_32 (); | |
99 | conversion_from_float_64 (); | |
100 | conversion_from_float_128 (); | |
101 | } |