1/* Tests of strtod in a locale using decimal comma.
2 Copyright (C) 2007-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <locale.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <string.h>
23#include <math.h>
24
25#define NBSP "\xc2\xa0"
26
27static const struct
28{
29 const char *in;
30 double expected;
31} tests[] =
32 {
33 { "0", 0.0 },
34 { "000", 0.0 },
35 { "-0", -0.0 },
36 { "-000", -0.0 },
37 { "0,", 0.0 },
38 { "-0,", -0.0 },
39 { "0,0", 0.0 },
40 { "-0,0", -0.0 },
41 { "0e-10", 0.0 },
42 { "-0e-10", -0.0 },
43 { "0,e-10", 0.0 },
44 { "-0,e-10", -0.0 },
45 { "0,0e-10", 0.0 },
46 { "-0,0e-10", -0.0 },
47 { "0e-1000000", 0.0 },
48 { "-0e-1000000", -0.0 },
49 { "0,0e-1000000", 0.0 },
50 { "-0,0e-1000000", -0.0 },
51 };
52#define NTESTS (sizeof (tests) / sizeof (tests[0]))
53
54
55static int
56do_test (void)
57{
58 if (setlocale (LC_ALL, "cs_CZ.UTF-8") == NULL)
59 {
60 puts (s: "could not set locale");
61 return 1;
62 }
63
64 int status = 0;
65
66 for (int i = 0; i < NTESTS; ++i)
67 {
68 char *ep;
69 double r = strtod (tests[i].in, &ep);
70
71 if (*ep != '\0')
72 {
73 printf (format: "%d: got rest string \"%s\", expected \"\"\n", i, ep);
74 status = 1;
75 }
76
77 if (r != tests[i].expected
78 || copysign (10.0, r) != copysign (10.0, tests[i].expected))
79 {
80 printf (format: "%d: got wrong results %g, expected %g\n",
81 i, r, tests[i].expected);
82 status = 1;
83 }
84 }
85
86 return status;
87}
88
89#include <support/test-driver.c>
90

source code of glibc/stdlib/tst-strtod5.c