1 /*
2 Copyright (C) 2013 Fredrik Johansson
3
4 This file is part of Arb.
5
6 Arb is free software: you can redistribute it and/or modify it under
7 the terms of the GNU Lesser General Public License (LGPL) as published
8 by the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version. See <http://www.gnu.org/licenses/>.
10 */
11
12 #include "fmpr.h"
13
main()14 int main()
15 {
16 slong iter;
17 flint_rand_t state;
18
19 flint_printf("set_round_uiui_2exp_fmpz....");
20 fflush(stdout);
21
22 flint_randinit(state);
23
24 for (iter = 0; iter < 10000 * arb_test_multiplier(); iter++)
25 {
26 slong prec, ret1, ret2;
27 fmpz_t man, exp;
28 fmpr_t x, y;
29 mp_limb_t hi, lo;
30 fmpr_rnd_t rnd;
31 int negative;
32
33 fmpz_init(man);
34 fmpz_init(exp);
35 fmpr_init(x);
36 fmpr_init(y);
37
38 prec = 2 + n_randint(state, 1000);
39 if (n_randint(state, 10) == 0)
40 prec = FMPR_PREC_EXACT;
41
42 negative = n_randint(state, 2);
43 hi = n_randtest(state);
44 lo = n_randtest(state);
45 fmpz_randtest(exp, state, 1 + n_randint(state, 100));
46 if (negative)
47 fmpz_neg_uiui(man, hi, lo);
48 else
49 fmpz_set_uiui(man, hi, lo);
50
51 switch (n_randint(state, 4))
52 {
53 case 0: rnd = FMPR_RND_DOWN; break;
54 case 1: rnd = FMPR_RND_UP; break;
55 case 2: rnd = FMPR_RND_FLOOR; break;
56 default: rnd = FMPR_RND_CEIL; break;
57 }
58
59 ret1 = fmpr_set_round_uiui_2exp_fmpz(x, hi, lo, exp, negative, prec, rnd);
60
61 fmpr_set_fmpz_2exp(y, man, exp);
62 ret2 = fmpr_set_round(y, y, prec, rnd);
63
64 if (!fmpr_equal(x, y) || ret1 != ret2 ||
65 !fmpr_check_ulp(x, ret1, prec) || !fmpr_check_ulp(y, ret2, prec))
66 {
67 flint_printf("FAIL\n\n");
68 flint_printf("prec: %wd\n", prec);
69 flint_printf("hi = %wu, lo = %wu\n", hi, lo);
70 flint_printf("man = "); fmpz_print(man); flint_printf("\n\n");
71 flint_printf("exp = "); fmpz_print(exp); flint_printf("\n\n");
72 flint_printf("x = "); fmpr_print(x); flint_printf("\n\n");
73 flint_printf("y = "); fmpr_print(y); flint_printf("\n\n");
74 flint_printf("ret1 = %wd, ret2 = %wd\n\n", ret1, ret2);
75 flint_abort();
76 }
77
78 fmpz_clear(man);
79 fmpz_clear(exp);
80 fmpr_clear(x);
81 fmpr_clear(y);
82 }
83
84 flint_randclear(state);
85 flint_cleanup();
86 flint_printf("PASS\n");
87 return EXIT_SUCCESS;
88 }
89
90