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author Karl Berry <karl@freefriends.org>
date Fri, 16 Aug 2013 06:32:22 -0700
parents 3e765e2f4c46
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1 /* Test of vasnprintf() and asnprintf() functions.
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2 Copyright (C) 2007-2013 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 }