1/* Basic tests for __strtod_internal.
2 Copyright (C) 1991-2024 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 <ctype.h>
20#include <locale.h>
21#include <stddef.h>
22#include <stdio.h>
23#include <stdlib.h>
24#include <errno.h>
25#include <string.h>
26#include <math.h>
27
28#include "tst-strtod.h"
29
30/* This tests internal interfaces, which are only defined for types
31 with distinct ABIs, so disable testing for types without distinct
32 ABIs. */
33#undef IF_FLOAT32
34#define IF_FLOAT32(x)
35#undef IF_FLOAT64
36#define IF_FLOAT64(x)
37#undef IF_FLOAT32X
38#define IF_FLOAT32X(x)
39#undef IF_FLOAT64X
40#define IF_FLOAT64X(x)
41#if !__HAVE_DISTINCT_FLOAT128
42# undef IF_FLOAT128
43# define IF_FLOAT128(x)
44#endif
45
46#define ntests (sizeof (tests) / sizeof (tests[0]))
47
48/* Perform a few tests in a locale with thousands separators. */
49#define TEST_STRTOD(FSUF, FTYPE, FTOSTR, LSUF, CSUF) \
50static int \
51test_strto ## FSUF (void) \
52{ \
53 static const struct \
54 { \
55 const char *loc; \
56 const char *str; \
57 FTYPE exp; \
58 ptrdiff_t nread; \
59 } tests[] = \
60 { \
61 { "de_DE.UTF-8", "1,5", 1.5 ## LSUF, 3 }, \
62 { "de_DE.UTF-8", "1.5", 1.0 ## LSUF, 1 }, \
63 { "de_DE.UTF-8", "1.500", 1500.0 ## LSUF, 5 }, \
64 { "de_DE.UTF-8", "36.893.488.147.419.103.232", 0x1.0p65 ## LSUF, 26 } \
65 }; \
66 size_t n; \
67 int result = 0; \
68 \
69 puts ("\nLocale tests"); \
70 \
71 for (n = 0; n < ntests; ++n) \
72 { \
73 FTYPE d; \
74 char *endp; \
75 \
76 if (setlocale (LC_ALL, tests[n].loc) == NULL) \
77 { \
78 printf ("cannot set locale %s\n", tests[n].loc); \
79 result = 1; \
80 continue; \
81 } \
82 \
83 d = __strto ## FSUF ## _internal (tests[n].str, &endp, 1); \
84 if (d != tests[n].exp) \
85 { \
86 char buf1[FSTRLENMAX], buf2[FSTRLENMAX]; \
87 FTOSTR (buf1, sizeof (buf1), "%g", d); \
88 FTOSTR (buf2, sizeof (buf2), "%g", tests[n].exp); \
89 printf ("strto" # FSUF "(\"%s\") returns %s and not %s\n", \
90 tests[n].str, buf1, buf2); \
91 result = 1; \
92 } \
93 else if (endp - tests[n].str != tests[n].nread) \
94 { \
95 printf ("strto" # FSUF "(\"%s\") read %td bytes and not %td\n", \
96 tests[n].str, endp - tests[n].str, tests[n].nread); \
97 result = 1; \
98 } \
99 } \
100 \
101 if (result == 0) \
102 puts ("all OK"); \
103 \
104 return result ? EXIT_FAILURE : EXIT_SUCCESS; \
105}
106
107GEN_TEST_STRTOD_FOREACH (TEST_STRTOD)
108
109static int
110do_test (void)
111{
112 return STRTOD_TEST_FOREACH (test_strto);
113}
114
115#include <support/test-driver.c>
116

source code of glibc/stdlib/tst-strtod1i.c