| 1 | /* Test of vasnprintf() and asnprintf() functions.
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| 2 | Copyright (C) 2007-2012 Free Software Foundation, Inc.
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| 3 |
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| 4 | This program is free software: you can redistribute it and/or modify
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| 5 | it under the terms of the GNU General Public License as published by
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| 6 | the Free Software Foundation; either version 3 of the License, or
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| 7 | (at your option) any later version.
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| 8 |
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| 9 | This program is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU General Public License
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| 15 | along with this program. If not, see <http://www.gnu.org/licenses/>. */
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| 16 |
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| 17 | /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
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| 18 |
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| 19 | #include <config.h>
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| 20 |
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| 21 | #include "vasnprintf.h"
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| 22 |
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| 23 | #include <stdarg.h>
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| 24 | #include <stdlib.h>
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| 25 | #include <string.h>
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| 26 |
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| 27 | #include "macros.h"
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| 28 |
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| 29 | static void
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| 30 | test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
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| 31 | {
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| 32 | char buf[8];
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| 33 | int size;
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| 34 |
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| 35 | for (size = 0; size <= 8; size++)
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| 36 | {
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| 37 | size_t length = size;
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| 38 | char *result = my_asnprintf (NULL, &length, "%d", 12345);
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| 39 | ASSERT (result != NULL);
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| 40 | ASSERT (strcmp (result, "12345") == 0);
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| 41 | ASSERT (length == 5);
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| 42 | free (result);
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| 43 | }
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| 44 |
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| 45 | for (size = 0; size <= 8; size++)
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| 46 | {
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| 47 | size_t length;
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| 48 | char *result;
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| 49 |
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| 50 | memcpy (buf, "DEADBEEF", 8);
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| 51 | length = size;
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| 52 | result = my_asnprintf (buf, &length, "%d", 12345);
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| 53 | ASSERT (result != NULL);
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| 54 | ASSERT (strcmp (result, "12345") == 0);
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| 55 | ASSERT (length == 5);
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| 56 | if (size < 6)
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| 57 | ASSERT (result != buf);
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| 58 | ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
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| 59 | if (result != buf)
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| 60 | free (result);
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| 61 | }
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| 62 | }
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| 63 |
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| 64 | static char *
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| 65 | my_asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
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| 66 | {
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| 67 | va_list args;
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| 68 | char *ret;
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| 69 |
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| 70 | va_start (args, format);
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| 71 | ret = vasnprintf (resultbuf, lengthp, format, args);
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| 72 | va_end (args);
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| 73 | return ret;
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| 74 | }
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| 75 |
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| 76 | static void
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| 77 | test_vasnprintf ()
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| 78 | {
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| 79 | test_function (my_asnprintf);
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| 80 | }
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| 81 |
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| 82 | static void
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| 83 | test_asnprintf ()
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| 84 | {
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| 85 | test_function (asnprintf);
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| 86 | }
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| 87 |
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| 88 | int
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| 89 | main (int argc, char *argv[])
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| 90 | {
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| 91 | test_vasnprintf ();
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| 92 | test_asnprintf ();
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| 93 | return 0;
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| 94 | }
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