1/* Test for the long double variants of strfroml and strtold.
2 Copyright (C) 2019-2024 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 <stdlib.h>
20
21#include <support/check.h>
22
23static int
24do_test (void)
25{
26 int written;
27 char buffer[64];
28 char *bufptr = buffer;
29 const char *expected = "-1.0000000000";
30 long double read;
31
32 /* Write to the buffer. */
33 written = strfroml (dest: bufptr, size: 64, format: "%.10f", f: (long double) -1);
34 if (written < 0)
35 support_record_failure ();
36
37 /* Compare against the expected output. */
38 TEST_COMPARE_STRING (expected, buffer);
39
40 /* Read from the buffer. */
41 read = strtold (nptr: expected, NULL);
42
43 if (read != -1.0L)
44 support_record_failure ();
45
46 return 0;
47}
48
49#include <support/test-driver.c>
50

source code of glibc/sysdeps/ieee754/ldbl-128ibm-compat/test-strfrom-ldbl-compat.c