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annotate lib/xstrtol-error.c @ 9659:5680cf5b5595

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md2: clarify comments to say that alignment is not required. * lib/md2.h: Remove warning about alignment in comment. * lib/md2.c (md2_read_ctx, md2_finish_ctx): Doc fix, alignment has never been required.
author Simon Josefsson <simon@josefsson.org>
date Thu, 31 Jan 2008 11:10:36 +0100
parents bbbbbf4cd1c5
children e7e16f35a3b7
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2f9763090486 Move xstrtol messages into gnulib domain, when --pobase is used.
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1 /* A more useful interface to strtol.
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2
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3 Copyright (C) 1995, 1996, 1998, 1999, 2001, 2002, 2003, 2004, 2006, 2007
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4 Free Software Foundation, Inc.
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5
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6 This program is free software: you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3 of the License, or
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9 (at your option) any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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18
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19 #include <config.h>
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20 #include "xstrtol.h"
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21
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22 #include <stdlib.h>
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23
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24 #include "error.h"
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25 #include "exitfail.h"
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26 #include "gettext.h"
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27
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28 #define N_(msgid) msgid
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29
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30 /* Report an error for an invalid integer in an option argument.
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31
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32 ERR is the error code returned by one of the xstrto* functions.
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33
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34 Use OPT_IDX to decide whether to print the short option string "C"
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35 or "-C" or a long option string derived from LONG_OPTION. OPT_IDX
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36 is -2 if the short option "C" was used, without any leading "-"; it
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37 is -1 if the short option "-C" was used; otherwise it is an index
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38 into LONG_OPTIONS, which should have a name preceded by two '-'
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39 characters.
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40
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41 ARG is the option-argument containing the integer.
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42
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43 After reporting an error, exit with status EXIT_STATUS if it is
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44 nonzero. */
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45
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46 static void
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47 xstrtol_error (enum strtol_error err,
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48 int opt_idx, char c, struct option const *long_options,
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49 char const *arg,
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50 int exit_status)
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51 {
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52 char const *hyphens = "--";
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53 char const *msgid;
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54 char const *option;
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55 char option_buffer[2];
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56
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57 switch (err)
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58 {
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59 default:
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60 abort ();
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61
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62 case LONGINT_INVALID:
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63 msgid = N_("invalid %s%s argument `%s'");
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64 break;
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65
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66 case LONGINT_INVALID_SUFFIX_CHAR:
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67 case LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW:
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68 msgid = N_("invalid suffix in %s%s argument `%s'");
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69 break;
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70
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71 case LONGINT_OVERFLOW:
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72 msgid = N_("%s%s argument `%s' too large");
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73 break;
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74 }
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75
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76 if (opt_idx < 0)
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77 {
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78 hyphens -= opt_idx;
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79 option_buffer[0] = c;
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80 option_buffer[1] = '\0';
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81 option = option_buffer;
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82 }
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83 else
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84 option = long_options[opt_idx].name;
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85
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86 error (exit_failure, 0, gettext (msgid), hyphens, option, arg);
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87 }
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88
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89 /* Like xstrtol_error, except exit with a failure status. */
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90
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91 void
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92 xstrtol_fatal (enum strtol_error err,
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93 int opt_idx, char c, struct option const *long_options,
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94 char const *arg)
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95 {
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96 xstrtol_error (err, opt_idx, c, long_options, arg, exit_failure);
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97 abort ();
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98 }