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annotate lib/xstrtol.h @ 5848:a48fb0e98c8c

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*** empty log message ***
author Paul Eggert <eggert@cs.ucla.edu>
date Sat, 14 May 2005 06:03:57 +0000
parents a535859efd14
children 19c2e5121b2f
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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 Free
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4 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 2, or (at your option)
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9 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, write to the Free Software Foundation,
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18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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19
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20 #ifndef XSTRTOL_H_
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21 # define XSTRTOL_H_ 1
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22
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23 # include "exitfail.h"
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24
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25 # if HAVE_INTTYPES_H
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26 # include <inttypes.h>
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27 # endif
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28 # if HAVE_STDINT_H
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29 # include <stdint.h>
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30 # endif
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31
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32 # ifndef _STRTOL_ERROR
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33 enum strtol_error
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34 {
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35 LONGINT_OK = 0,
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36
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37 /* These two values can be ORed together, to indicate that both
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38 errors occurred. */
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39 LONGINT_OVERFLOW = 1,
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40 LONGINT_INVALID_SUFFIX_CHAR = 2,
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41
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42 LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW = (LONGINT_INVALID_SUFFIX_CHAR
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43 | LONGINT_OVERFLOW),
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44 LONGINT_INVALID = 4
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45 };
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46 typedef enum strtol_error strtol_error;
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47 # endif
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48
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49 # define _DECLARE_XSTRTOL(name, type) \
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50 strtol_error name (const char *, char **, int, type *, const char *);
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51 _DECLARE_XSTRTOL (xstrtol, long int)
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52 _DECLARE_XSTRTOL (xstrtoul, unsigned long int)
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53 _DECLARE_XSTRTOL (xstrtoimax, intmax_t)
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54 _DECLARE_XSTRTOL (xstrtoumax, uintmax_t)
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55
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56 # define _STRTOL_ERROR(Exit_code, Str, Argument_type_string, Err) \
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57 do \
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58 { \
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59 switch ((Err)) \
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60 { \
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61 default: \
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62 abort (); \
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63 \
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64 case LONGINT_INVALID: \
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65 error ((Exit_code), 0, "invalid %s `%s'", \
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66 (Argument_type_string), (Str)); \
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67 break; \
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68 \
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69 case LONGINT_INVALID_SUFFIX_CHAR: \
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70 case LONGINT_INVALID_SUFFIX_CHAR | LONGINT_OVERFLOW: \
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71 error ((Exit_code), 0, "invalid character following %s in `%s'", \
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72 (Argument_type_string), (Str)); \
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73 break; \
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74 \
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75 case LONGINT_OVERFLOW: \
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76 error ((Exit_code), 0, "%s `%s' too large", \
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77 (Argument_type_string), (Str)); \
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78 break; \
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79 } \
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80 } \
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81 while (0)
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82
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83 # define STRTOL_FATAL_ERROR(Str, Argument_type_string, Err) \
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84 _STRTOL_ERROR (exit_failure, Str, Argument_type_string, Err)
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85
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86 # define STRTOL_FAIL_WARN(Str, Argument_type_string, Err) \
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87 _STRTOL_ERROR (0, Str, Argument_type_string, Err)
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88
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89 #endif /* not XSTRTOL_H_ */