/* A GNU-like <dirent.h>.
   Copyright (C) 2006-2011 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef _GL_DIRENT_H

#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@

/* The include_next requires a split double-inclusion guard.  */
#@INCLUDE_NEXT@ @NEXT_DIRENT_H@

#ifndef _GL_DIRENT_H
#define _GL_DIRENT_H

/* Get ino_t.  Needed on some systems, including glibc 2.8.  */
#include <sys/types.h>

/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */

/* The definition of _GL_ARG_NONNULL is copied here.  */

/* The definition of _GL_WARN_ON_USE is copied here.  */


/* Declare overridden functions.  */

#if @REPLACE_CLOSEDIR@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#  define closedir rpl_closedir
# endif
_GL_FUNCDECL_RPL (closedir, int, (DIR *) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (closedir, int, (DIR *));
#else
_GL_CXXALIAS_SYS (closedir, int, (DIR *));
#endif
_GL_CXXALIASWARN (closedir);

#if @GNULIB_DIRFD@
/* Return the file descriptor associated with the given directory stream,
   or -1 if none exists.  */
# if @REPLACE_DIRFD@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef dirfd
#   define dirfd rpl_dirfd
#  endif
_GL_FUNCDECL_RPL (dirfd, int, (DIR *) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (dirfd, int, (DIR *));
# else
#  if defined __cplusplus && defined GNULIB_NAMESPACE && defined dirfd
    /* dirfd is defined as a macro and not as a function.
       Turn it into a function and get rid of the macro.  */
static inline int (dirfd) (DIR *dp) { return dirfd (dp); }
#   undef dirfd
#  endif
#  if !(@HAVE_DECL_DIRFD@ || defined dirfd)
_GL_FUNCDECL_SYS (dirfd, int, (DIR *) _GL_ARG_NONNULL ((1)));
#  endif
_GL_CXXALIAS_SYS (dirfd, int, (DIR *));
# endif
_GL_CXXALIASWARN (dirfd);
#elif defined GNULIB_POSIXCHECK
# undef dirfd
# if HAVE_RAW_DECL_DIRFD
_GL_WARN_ON_USE (dirfd, "dirfd is unportable - "
                 "use gnulib module dirfd for portability");
# endif
#endif

#if @GNULIB_FDOPENDIR@
/* Open a directory stream visiting the given directory file
   descriptor.  Return NULL and set errno if fd is not visiting a
   directory.  On success, this function consumes fd (it will be
   implicitly closed either by this function or by a subsequent
   closedir).  */
# if @REPLACE_FDOPENDIR@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef fdopendir
#   define fdopendir rpl_fdopendir
#  endif
_GL_FUNCDECL_RPL (fdopendir, DIR *, (int fd));
_GL_CXXALIAS_RPL (fdopendir, DIR *, (int fd));
# else
#  if !@HAVE_FDOPENDIR@ || !@HAVE_DECL_FDOPENDIR@
_GL_FUNCDECL_SYS (fdopendir, DIR *, (int fd));
#  endif
_GL_CXXALIAS_SYS (fdopendir, DIR *, (int fd));
# endif
_GL_CXXALIASWARN (fdopendir);
#elif defined GNULIB_POSIXCHECK
# undef fdopendir
# if HAVE_RAW_DECL_FDOPENDIR
_GL_WARN_ON_USE (fdopendir, "fdopendir is unportable - "
                 "use gnulib module fdopendir for portability");
# endif
#endif

#if @REPLACE_OPENDIR@
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#  define opendir rpl_opendir
# endif
_GL_FUNCDECL_RPL (opendir, DIR *, (const char *) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (opendir, DIR *, (const char *));
#else
_GL_CXXALIAS_SYS (opendir, DIR *, (const char *));
#endif
_GL_CXXALIASWARN (opendir);

#if @GNULIB_SCANDIR@
/* Scan the directory DIR, calling FILTER on each directory entry.
   Entries for which FILTER returns nonzero are individually malloc'd,
   sorted using qsort with CMP, and collected in a malloc'd array in
   *NAMELIST.  Returns the number of entries selected, or -1 on error.  */
# if !@HAVE_SCANDIR@
_GL_FUNCDECL_SYS (scandir, int,
                  (const char *dir, struct dirent ***namelist,
                   int (*filter) (const struct dirent *),
                   int (*cmp) (const struct dirent **, const struct dirent **))
                  _GL_ARG_NONNULL ((1, 2, 4)));
# endif
/* Need to cast, because on glibc systems, the fourth parameter is
                        int (*cmp) (const void *, const void *).  */
_GL_CXXALIAS_SYS_CAST (scandir, int,
                       (const char *dir, struct dirent ***namelist,
                        int (*filter) (const struct dirent *),
                        int (*cmp) (const struct dirent **, const struct dirent **)));
_GL_CXXALIASWARN (scandir);
#elif defined GNULIB_POSIXCHECK
# undef scandir
# if HAVE_RAW_DECL_SCANDIR
_GL_WARN_ON_USE (scandir, "scandir is unportable - "
                 "use gnulib module scandir for portability");
# endif
#endif

#if @GNULIB_ALPHASORT@
/* Compare two 'struct dirent' entries alphabetically.  */
# if !@HAVE_ALPHASORT@
_GL_FUNCDECL_SYS (alphasort, int,
                  (const struct dirent **, const struct dirent **)
                  _GL_ARG_NONNULL ((1, 2)));
# endif
/* Need to cast, because on glibc systems, the parameters are
                       (const void *, const void *).  */
_GL_CXXALIAS_SYS_CAST (alphasort, int,
                       (const struct dirent **, const struct dirent **));
_GL_CXXALIASWARN (alphasort);
#elif defined GNULIB_POSIXCHECK
# undef alphasort
# if HAVE_RAW_DECL_ALPHASORT
_GL_WARN_ON_USE (alphasort, "alphasort is unportable - "
                 "use gnulib module alphasort for portability");
# endif
#endif


#endif /* _GL_DIRENT_H */
#endif /* _GL_DIRENT_H */
