1 /* Test file for internal debugging-out functions:
2 mpfr_print_rnd_mode, mpfr_dump, mpfr_print_mant_binary.
3
4 Copyright 2004-2023 Free Software Foundation, Inc.
5 Contributed by the AriC and Caramba projects, INRIA.
6
7 This file is part of the GNU MPFR Library.
8
9 The GNU MPFR Library is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or (at your
12 option) any later version.
13
14 The GNU MPFR Library is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17 License for more details.
18
19 You should have received a copy of the GNU Lesser General Public License
20 along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
21 https://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
22 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
23
24 #include "mpfr-test.h"
25
26 #define FILE_NAME "toutimpl_out.txt"
27
28 static const char Buffer[] =
29 "@NaN@\n"
30 "-@NaN@\n"
31 "@Inf@\n"
32 "-@Inf@\n"
33 "0\n"
34 "-0\n"
35 "0.10101010101011111001000110001100010000100000000000000E32\n"
36 #if GMP_NUMB_BITS == 32
37 "x = 10101010101011111001000110001100.010000100000000000000[00000000000.]\n"
38 "0.01010101010101111100100011000110010000100000000000000[00000000001]E32!!!NT<!!!\n"
39 "0.01010101010101111100100011000110010000100000000000000[00000000001]E32!!!NT>!!!\n"
40 #elif GMP_NUMB_BITS == 64
41 "x = 10101010101011111001000110001100010000100000000000000[00000000000.]\n"
42 "0.01010101010101111100100011000110001000010000000000000[00000000001]E32!!!NT<!!!\n"
43 "0.01010101010101111100100011000110001000010000000000000[00000000001]E32!!!NT>!!!\n"
44 #endif
45 ;
46
47 int
48 main (void)
49 {
50 mpfr_exp_t e;
51 mpfr_t x;
52 FILE *f;
53 int i;
54
55 tests_start_mpfr ();
56
57 /* Check RND_MODE */
58 if (strcmp (mpfr_print_rnd_mode (MPFR_RNDN), "MPFR_RNDN"))
59 {
60 printf ("Error for printing MPFR_RNDN\n");
61 exit (1);
62 }
63 if (strcmp (mpfr_print_rnd_mode (MPFR_RNDU), "MPFR_RNDU"))
64 {
65 printf ("Error for printing MPFR_RNDU\n");
66 exit (1);
67 }
68 if (strcmp (mpfr_print_rnd_mode (MPFR_RNDD), "MPFR_RNDD"))
69 {
70 printf ("Error for printing MPFR_RNDD\n");
71 exit (1);
72 }
73 if (strcmp (mpfr_print_rnd_mode (MPFR_RNDZ), "MPFR_RNDZ"))
74 {
75 printf ("Error for printing MPFR_RNDZ\n");
76 exit (1);
77 }
78 if (mpfr_print_rnd_mode ((mpfr_rnd_t) -1) != NULL ||
79 mpfr_print_rnd_mode (MPFR_RND_MAX) != NULL)
80 {
81 printf ("Error for illegal rounding mode values.\n");
82 exit (1);
83 }
84
85 /* Reopen stdout to a file. All errors will be put to stderr. */
86 if (freopen (FILE_NAME, "w", stdout) == NULL)
87 {
88 printf ("Error can't redirect stdout\n");
89 exit (1);
90 }
91 mpfr_init2 (x, 53);
92 mpfr_set_nan (x);
93 mpfr_dump (x);
94 MPFR_CHANGE_SIGN (x);
95 mpfr_dump (x);
96 mpfr_set_inf (x, +1);
97 mpfr_dump (x);
98 mpfr_set_inf (x, -1);
99 mpfr_dump (x);
100 mpfr_set_zero (x, +1);
101 mpfr_dump (x);
102 mpfr_set_zero (x, -1);
103 mpfr_dump (x);
104 mpfr_set_str_binary (x, "0.101010101010111110010001100011000100001E32");
105 mpfr_dump (x);
106 mpfr_print_mant_binary ("x =", MPFR_MANT(x), MPFR_PREC(x));
107 MPFR_MANT(x)[MPFR_LAST_LIMB(x)] >>= 1;
108 MPFR_MANT(x)[0] |= 1;
109 e = mpfr_get_emin ();
110 set_emin (33);
111 mpfr_dump (x);
112 set_emin (e);
113 e = mpfr_get_emax ();
114 set_emax (31);
115 mpfr_dump (x);
116 set_emax (e);
117 mpfr_clear (x);
118 fclose (stdout);
119
120 /* Open it and check for it */
121 f = fopen (FILE_NAME, "r");
122 if (f == NULL)
123 {
124 fprintf (stderr, "Can't reopen file!\n");
125 exit (1);
126 }
127 for (i = 0 ; i < sizeof (Buffer) - 1 ; i++)
128 {
129 if (feof (f))
130 {
131 fprintf (stderr, "Error EOF\n");
132 exit (1);
133 }
134 if (Buffer[i] != fgetc (f))
135 {
136 fprintf (stderr, "Character mismatch for i = %d / %lu\n",
137 i, (unsigned long) sizeof (Buffer));
138 exit (1);
139 }
140 }
141 fclose (f);
142
143 remove (FILE_NAME);
144 tests_end_mpfr ();
145 return 0;
146 }