1 /* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C 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 GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
20 # define _GNU_SOURCE 1
37 typedef char * ((*efcvt_func) (double, int, int *, int *));
40 static testcase ecvt_tests[] =
45 { 10.0, 5, 2, "10000" },
46 { -12.0, 5, 2, "12000" },
47 { 0.2, 4, 0, "2000" },
48 { 0.02, 4, -1, "2000" },
51 { 0.01, 2, -1, "10" },
55 { 100.01, -4, 3, "" },
56 { 123.01, -4, 3, "" },
57 { 126.71, -4, 3, "" },
58 { 0.0, 4, 1, "0000" },
59 /* -1.0 is end marker. */
63 static testcase fcvt_tests[] =
67 { 10.0, 1, 2, "100" },
68 { 10.0, 4, 2, "100000" },
69 { -12.0, 5, 2, "1200000" },
70 { 0.2, 4, 0, "2000" },
71 { 0.02, 4, -1, "200" },
75 { 100.0, -2, 3, "100" },
76 { 100.0, -5, 3, "100" },
77 { 100.0, -4, 3, "100" },
78 { 100.01, -4, 3, "100" },
79 { 123.01, -4, 3, "100" },
80 { 126.71, -4, 3, "100" },
81 /* -1.0 is end marker. */
86 output_error (const char *name, double value, int ndigit,
87 const char *exp_p, int exp_decpt, int exp_sign,
88 char *res_p, int res_decpt, int res_sign)
90 printf ("%s returned wrong result for value: %f, ndigits: %d\n",
92 printf ("Result was p: \"%s\", decpt: %d, sign: %d\n",
93 res_p, res_decpt, res_sign);
94 printf ("Should be p: \"%s\", decpt: %d, sign: %d\n",
95 exp_p, exp_decpt, exp_sign);
100 test (testcase tests[], efcvt_func efcvt, const char *name)
106 while (tests[no].value != -1.0)
108 p = efcvt (tests[no].value, tests[no].ndigit, &decpt, &sign);
109 if (decpt != tests[no].decpt
110 || sign != (tests[no].value < 0)
111 || strcmp (p, tests[no].result) != 0)
112 output_error (name, tests[no].value, tests[no].ndigit,
113 tests[no].result, tests[no].decpt,
114 (tests[no].value < 0),
126 p = ecvt (NAN, 10, &decpt, &sign);
127 if (sign != 0 || strcmp (p, "nan") != 0)
128 output_error ("ecvt", NAN, 10, "nan", 0, 0, p, decpt, sign);
130 p = ecvt (INFINITY, 10, &decpt, &sign);
131 if (sign != 0 || strcmp (p, "inf") != 0)
132 output_error ("ecvt", NAN, 10, "inf", 0, 0, p, decpt, sign);
134 /* Simply make sure these calls with large NDIGITs don't crash. */
135 (void) ecvt (123.456, 10000, &decpt, &sign);
136 (void) fcvt (123.456, 10000, &decpt, &sign);
144 test (ecvt_tests, ecvt, "ecvt");
145 test (fcvt_tests, fcvt, "fcvt");