1 /* Test of vasnprintf() and asnprintf() functions.
2 Copyright (C) 2007-2021 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program 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
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
21 #include "vasnprintf.h"
30 test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
35 for (size = 0; size <= 8; size++)
38 char *result = my_asnprintf (NULL, &length, "%d", 12345);
39 ASSERT (result != NULL);
40 ASSERT (strcmp (result, "12345") == 0);
45 for (size = 0; size <= 8; size++)
50 memcpy (buf, "DEADBEEF", 8);
52 result = my_asnprintf (buf, &length, "%d", 12345);
53 ASSERT (result != NULL);
54 ASSERT (strcmp (result, "12345") == 0);
57 ASSERT (result != buf);
58 ASSERT (memcmp (buf + size, &"DEADBEEF"[size], 8 - size) == 0);
63 /* Note: This test assumes IEEE 754 representation of 'double' floats. */
64 for (size = 0; size <= 8; size++)
69 memcpy (buf, "DEADBEEF", 8);
71 result = my_asnprintf (buf, &length, "%2.0f", 1.6314159265358979e+125);
72 ASSERT (result != NULL);
73 /* The exact result and the result on glibc systems is
74 163141592653589790215729350939528493057529598899734151772468186268423257777068536614838678161083520756952076273094236944990208
75 On Cygwin, the result is
76 163141592653589790215729350939528493057529600000000000000000000000000000000000000000000000000000000000000000000000000000000000
77 On HP-UX 11.31 / hppa and IRIX 6.5, the result is
78 163141592653589790000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
80 ASSERT (strlen (result) == 126);
81 ASSERT (memcmp (result, "163141592653589790", 18) == 0);
82 ASSERT (length == 126);
84 ASSERT (result != buf);
85 ASSERT (memcmp (buf + size, &"DEADBEEF"[size], 8 - size) == 0);
92 my_asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
97 va_start (args, format);
98 ret = vasnprintf (resultbuf, lengthp, format, args);
106 test_function (my_asnprintf);
112 test_function (asnprintf);
116 main (int argc, char *argv[])