1 // Copyright (C) 2009-2013 Free Software Foundation, Inc.
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-require-effective-target dfp }
19
20 // ISO/IEC TR 24733 3.2.5 Initialization from coefficient and exponent.
21
22 #include <decimal/decimal>
23 #include <cstring>
24 #include <testsuite_hooks.h>
25
26 #define PASTE2(A,B) A ## B
27 #define PASTE(A,B) PASTE2(A,B)
28
29 #define TESTVAL_NEG(COEFF,ESIGN,EXP,SUF,NUM,SIZE) \
30 x = PASTE(PASTE(PASTE(PASTE(PASTE(COEFF,.),E),ESIGN),EXP),SUF); \
31 sll = PASTE(COEFF,LL); \
32 i = ESIGN EXP; \
33 a = PASTE(make_decimal,32) (sll, i); \
34 b = PASTE(make_decimal,32) (PASTE(COEFF,LL), ESIGN EXP); \
35 VERIFY ((std::memcmp ((void *)&x, (void *)&a, SIZE) == 0) \
36 && (std::memcmp ((void *)&x, (void *)&b,SIZE) == 0));
37
38 #define TESTVAL_NONNEG(COEFF,ESIGN,EXP,SUF,NUM,SIZE) \
39 x = PASTE(PASTE(PASTE(PASTE(PASTE(COEFF,.),E),ESIGN),EXP),SUF); \
40 sll = PASTE(COEFF,LL); \
41 ull = PASTE(COEFF,ULL); \
42 i = ESIGN EXP; \
43 a = PASTE(make_decimal,32) (sll, i); \
44 b = PASTE(make_decimal,32) (PASTE(COEFF,LL), ESIGN EXP); \
45 c = PASTE(make_decimal,32) (ull, i); \
46 d = PASTE(make_decimal,32) (PASTE(COEFF,ULL), ESIGN EXP); \
47 VERIFY ((std::memcmp ((void *)&x, (void *)&a, SIZE) == 0) \
48 && (std::memcmp ((void *)&x, (void *)&b,SIZE) == 0) \
49 && (std::memcmp ((void *)&x, (void *)&c,SIZE) == 0) \
50 && (std::memcmp ((void *)&x, (void *)&d,SIZE) == 0));
51
52 using namespace std::decimal;
53
54 void
make_decimal_32(void)55 make_decimal_32 (void)
56 {
57 bool test __attribute__((unused)) = true;
58 decimal32 a, b, c, d;
59 float x __attribute__((mode(SD)));
60 int i;
61 unsigned long sz = sizeof (decimal32);
62 volatile long long sll;
63 volatile unsigned long long ull;
64
65 TESTVAL_NONNEG (0, +, 0, DF, 32, sz);
66 TESTVAL_NONNEG (5, +, 1, DF, 32, sz);
67 TESTVAL_NONNEG (50, +, 0, DF, 32, sz);
68 TESTVAL_NONNEG (500, +, 0, DF, 32, sz);
69 TESTVAL_NEG (-25, -, 3, DF, 32, sz)
70 TESTVAL_NEG (-500, +, 0, DF, 32, sz);
71 TESTVAL_NONNEG (999999, +, 91, DF, 32, sz);
72 TESTVAL_NONNEG (1, -, 9, DF, 32, sz);
73 TESTVAL_NONNEG (1, -, 90, DF, 32, sz);
74 TESTVAL_NONNEG (1, -, 95, DF, 32, sz);
75 TESTVAL_NONNEG (1, -, 101, DF, 32, sz);
76 TESTVAL_NEG (-1, -, 101, DF, 32, sz);
77 }
78
79 void
make_decimal_64(void)80 make_decimal_64 (void)
81 {
82 bool test __attribute__((unused)) = true;
83 decimal64 a, b, c, d;
84 float x __attribute__((mode(DD)));
85 int i;
86 unsigned long sz = sizeof (decimal64);
87 volatile long long sll;
88 volatile unsigned long long ull;
89
90 TESTVAL_NONNEG (0, +, 0, DF, 64, sz);
91 TESTVAL_NONNEG (5, +, 1, DF, 64, sz);
92 TESTVAL_NONNEG (50, +, 0, DF, 64, sz);
93 TESTVAL_NONNEG (500, +, 0, DF, 64, sz);
94 TESTVAL_NEG (-25, -, 3, DF, 64, sz)
95 TESTVAL_NEG (-500, +, 0, DF, 64, sz);
96 TESTVAL_NONNEG (999999, +, 91, DF, 64, sz);
97 TESTVAL_NONNEG (1, -, 9, DF, 64, sz);
98 TESTVAL_NONNEG (1, -, 90, DF, 64, sz);
99 TESTVAL_NONNEG (1, -, 95, DF, 64, sz);
100 TESTVAL_NONNEG (1, -, 101, DF, 64, sz);
101 TESTVAL_NEG (-1, -, 101, DF, 64, sz);
102 }
103
104 void
make_decimal_128(void)105 make_decimal_128 (void)
106 {
107 bool test __attribute__((unused)) = true;
108 decimal128 a, b, c, d;
109 float x __attribute__((mode(TD)));
110 int i;
111 unsigned long sz = sizeof (decimal128);
112 volatile long long sll;
113 volatile unsigned long long ull;
114
115 TESTVAL_NONNEG (0, +, 0, DF, 128, sz);
116 TESTVAL_NONNEG (5, +, 1, DF, 128, sz);
117 TESTVAL_NONNEG (50, +, 0, DF, 128, sz);
118 TESTVAL_NONNEG (500, +, 0, DF, 128, sz);
119 TESTVAL_NEG (-25, -, 3, DF, 128, sz)
120 TESTVAL_NEG (-500, +, 0, DF, 128, sz);
121 TESTVAL_NONNEG (999999, +, 91, DF, 128, sz);
122 TESTVAL_NONNEG (1, -, 9, DF, 128, sz);
123 TESTVAL_NONNEG (1, -, 90, DF, 128, sz);
124 TESTVAL_NONNEG (1, -, 95, DF, 128, sz);
125 TESTVAL_NONNEG (1, -, 101, DF, 128, sz);
126 TESTVAL_NEG (-1, -, 101, DF, 128, sz);
127 }
128
129 int
main()130 main ()
131 {
132 make_decimal_32 ();
133 make_decimal_64 ();
134 make_decimal_128 ();
135 }
136