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annotate lib/dirent.in.h @ 11038:6c37790abb93

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New module 'scandir'.
author Bruno Haible <bruno@clisp.org>
date Sun, 18 Jan 2009 12:28:05 +0100
parents 2b0380d48ff6
children 8842f30244d1
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fb8bcb95d71a New module 'dirent'.
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1 /* A GNU-like <dirent.h>.
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2 Copyright (C) 2006-2009 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 #ifndef _GL_DIRENT_H
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18
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19 #if __GNUC__ >= 3
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20 @PRAGMA_SYSTEM_HEADER@
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21 #endif
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22
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23 /* The include_next requires a split double-inclusion guard. */
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24 #@INCLUDE_NEXT@ @NEXT_DIRENT_H@
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25
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26 #ifndef _GL_DIRENT_H
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27 #define _GL_DIRENT_H
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28
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29 /* The definition of GL_LINK_WARNING is copied here. */
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31
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32 #ifdef __cplusplus
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33 extern "C" {
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34 #endif
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35
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36 /* Declare overridden functions. */
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37
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38 #if @REPLACE_FCHDIR@
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39 # define opendir rpl_opendir
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40 extern DIR * opendir (const char *);
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41 # define closedir rpl_closedir
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42 extern int closedir (DIR *);
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43 #endif
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44
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45 /* Declare other POSIX functions. */
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46
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47 #if @GNULIB_DIRFD@
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48 # if !@HAVE_DECL_DIRFD@ && !defined dirfd
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49 /* Return the file descriptor associated with the given directory stream,
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50 or -1 if none exists. */
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51 extern int dirfd (DIR const *dir);
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52 # endif
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53 #elif defined GNULIB_POSIXCHECK
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54 # undef dirfd
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55 # define dirfd(d) \
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56 (GL_LINK_WARNING ("dirfd is unportable - " \
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57 "use gnulib module dirfd for portability"), \
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58 dirfd (d))
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59 #endif
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60
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61 #if @GNULIB_SCANDIR@
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62 /* Scan the directory DIR, calling FILTER on each directory entry.
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63 Entries for which FILTER returns nonzero are individually malloc'd,
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64 sorted using qsort with CMP, and collected in a malloc'd array in
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65 *NAMELIST. Returns the number of entries selected, or -1 on error. */
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66 # if !@HAVE_SCANDIR@
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67 extern int scandir (const char *dir, struct dirent ***namelist,
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68 int (*filter) (const struct dirent *),
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69 int (*cmp) (const struct dirent **, const struct dirent **));
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70 # endif
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71 #elif defined GNULIB_POSIXCHECK
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72 # undef scandir
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73 # define scandir(d,n,f,c) \
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74 (GL_LINK_WARNING ("scandir is unportable - " \
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75 "use gnulib module scandir for portability"), \
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76 scandir (d, n, f, c))
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77 #endif
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78
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79 #ifdef __cplusplus
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80 }
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81 #endif
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82
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83
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84 #endif /* _GL_DIRENT_H */
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85 #endif /* _GL_DIRENT_H */