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a5544970 | 1 | // Copyright (C) 2009-2019 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 | ||
18 | // { dg-do compile } | |
02ebbe2f | 19 | // { dg-require-effective-target dfp } |
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20 | |
21 | // ISO/IEC TR 24733 doesn't say explicitly that the conversion from a | |
22 | // decimal floating-point type to a generic float type is prohibited but | |
23 | // it implies that in section 4.3 when it says "In C, objects of decimal | |
24 | // floating-oint type can be converted to generic floating-point type by | |
25 | // means of an explicit cast. In C++ this is not possible." Check that | |
26 | // attempt to do a cast are flagged as errors. | |
27 | ||
28 | #include <decimal/decimal> | |
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29 | |
30 | using namespace std::decimal; | |
31 | ||
32 | float f; | |
33 | double d; | |
34 | long double ld; | |
35 | decimal32 d32; | |
36 | decimal64 d64; | |
37 | decimal128 d128; | |
38 | ||
39 | void | |
40 | foo (void) | |
41 | { | |
42 | f = d32; // { dg-error "error" } | |
43 | f = d64; // { dg-error "error" } | |
44 | f = d128; // { dg-error "error" } | |
45 | d = d32; // { dg-error "error" } | |
46 | d = d64; // { dg-error "error" } | |
47 | d = d128; // { dg-error "error" } | |
48 | ld = d32; // { dg-error "error" } | |
49 | ld = d64; // { dg-error "error" } | |
50 | ld = d128; // { dg-error "error" } | |
51 | ||
52 | f = (float)d32; // { dg-error "error" } | |
53 | f = (float)d64; // { dg-error "error" } | |
54 | f = (float)d128; // { dg-error "error" } | |
55 | d = (double)d32; // { dg-error "error" } | |
56 | d = (double)d64; // { dg-error "error" } | |
57 | d = (double)d128; // { dg-error "error" } | |
58 | ld = (long double)d32; // { dg-error "error" } | |
59 | ld = (long double)d64; // { dg-error "error" } | |
60 | ld = (long double)d128; // { dg-error "error" } | |
61 | } |