968 lines
38 KiB
C++
968 lines
38 KiB
C++
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
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/* A GNU-like <dirent.h>.
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Copyright (C) 2006-2024 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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|
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This file is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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|
|
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _GL_DIRENT_H
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#if __GNUC__ >= 3
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#pragma GCC system_header
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#endif
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/* The include_next requires a split double-inclusion guard. */
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#if 1
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# include_next <dirent.h>
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#endif
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#ifndef _GL_DIRENT_H
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#define _GL_DIRENT_H
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/* This file uses _GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_MALLOC,
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_GL_ATTRIBUTE_PURE, GNULIB_POSIXCHECK, HAVE_RAW_DECL_*. */
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#if !_GL_CONFIG_H_INCLUDED
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#error "Please include config.h first."
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#endif
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/* Get ino_t. Needed on some systems, including glibc 2.8. */
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#include <sys/types.h>
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#if !1
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/* Define types DIR and 'struct dirent'. */
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# if !GNULIB_defined_struct_dirent
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struct dirent
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{
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char d_type;
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char d_name[1];
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};
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# define GNULIB_defined_struct_dirent 1
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# endif
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#endif
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/* 'd_type' macros specified in GNU, i.e., POSIX.1-2024 plus DT_WHT,
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but not (yet) DT_MQ, DT_SEM, DT_SHM, DT_TMO.
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These macros can be useful even on platforms that do not support
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d_type or the corresponding file types.
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The values of these macros are all in the 'unsigned char' range.
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Default to the Linux values which are also popular elsewhere,
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and check that all macros have distinct values. */
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#ifndef DT_UNKNOWN
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# define DT_UNKNOWN 0
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#endif
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#ifndef DT_FIFO
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# define DT_FIFO 1 /* FIFO */
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#endif
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#ifndef DT_CHR
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# define DT_CHR 2 /* character device */
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#endif
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#ifndef DT_DIR
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# define DT_DIR 4 /* directory */
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#endif
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#ifndef DT_BLK
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# define DT_BLK 6 /* block device */
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#endif
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#ifndef DT_REG
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# define DT_REG 8 /* regular file */
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#endif
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#ifndef DT_LNK
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# define DT_LNK 10 /* symbolic link */
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#endif
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#ifndef DT_SOCK
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# define DT_SOCK 12 /* socket */
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#endif
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#ifndef DT_WHT
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# define DT_WHT 14 /* whiteout */
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#endif
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static_assert (DT_UNKNOWN != DT_FIFO && DT_UNKNOWN != DT_CHR
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&& DT_UNKNOWN != DT_BLK && DT_UNKNOWN != DT_REG
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&& DT_UNKNOWN != DT_LNK && DT_UNKNOWN != DT_SOCK
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&& DT_UNKNOWN != DT_WHT
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&& DT_FIFO != DT_CHR && DT_FIFO != DT_BLK && DT_FIFO != DT_REG
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&& DT_FIFO != DT_LNK && DT_FIFO != DT_SOCK && DT_FIFO != DT_WHT
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&& DT_CHR != DT_BLK && DT_CHR != DT_REG && DT_CHR != DT_LNK
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&& DT_CHR != DT_SOCK && DT_CHR != DT_WHT
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&& DT_BLK != DT_REG && DT_BLK != DT_LNK && DT_BLK != DT_SOCK
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&& DT_BLK != DT_WHT
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&& DT_REG != DT_LNK && DT_REG != DT_SOCK && DT_REG != DT_WHT
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&& DT_LNK != DT_SOCK && DT_LNK != DT_WHT
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&& DT_SOCK != DT_WHT);
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/* Other optional information about a directory entry. */
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#define _GL_DT_NOTDIR 0x100 /* Not a directory */
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/* Conversion between S_IF* and DT_* file types. */
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#if ! (defined IFTODT && defined DTTOIF)
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# include <sys/stat.h>
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# ifdef S_ISWHT
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# define _GL_DIRENT_S_ISWHT(mode) S_ISWHT(mode)
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# else
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# define _GL_DIRENT_S_ISWHT(mode) 0
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# endif
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# ifdef S_IFWHT
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# define _GL_DIRENT_S_IFWHT S_IFWHT
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# else
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# define _GL_DIRENT_S_IFWHT (DT_WHT << 12) /* just a guess */
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# endif
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#endif
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/* Conversion from a 'stat' mode to a DT_* value. */
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#ifndef IFTODT
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# define IFTODT(mode) \
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(S_ISREG (mode) ? DT_REG : S_ISDIR (mode) ? DT_DIR \
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: S_ISLNK (mode) ? DT_LNK : S_ISBLK (mode) ? DT_BLK \
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: S_ISCHR (mode) ? DT_CHR : S_ISFIFO (mode) ? DT_FIFO \
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: S_ISSOCK (mode) ? DT_SOCK \
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: _GL_DIRENT_S_ISWHT (mode) ? DT_WHT : DT_UNKNOWN)
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#endif
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/* Conversion from a DT_* value to a 'stat' mode. */
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#ifndef DTTOIF
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# define DTTOIF(dirtype) \
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((dirtype) == DT_REG ? S_IFREG : (dirtype) == DT_DIR ? S_IFDIR \
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: (dirtype) == DT_LNK ? S_IFLNK : (dirtype) == DT_BLK ? S_IFBLK \
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: (dirtype) == DT_CHR ? S_IFCHR : dirtype == DT_FIFO ? S_IFIFO \
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: (dirtype) == DT_SOCK ? S_IFSOCK \
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: (dirtype) == DT_WHT ? _GL_DIRENT_S_IFWHT \
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: (dirtype) << 12 /* just a guess */)
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#endif
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#if !1
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# if !GNULIB_defined_DIR
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/* struct gl_directory is a type with a field 'int fd_to_close'.
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It is needed for implementing fdopendir(). */
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struct gl_directory;
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# if 1
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# define DIR struct gl_directory
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# else
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typedef struct gl_directory DIR;
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# endif
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# define GNULIB_defined_DIR 1
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# endif
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#endif
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/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
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that can be freed by passing them as the Ith argument to the
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function F. */
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#ifndef _GL_ATTRIBUTE_DEALLOC
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# if __GNUC__ >= 11 && !defined __clang__
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# define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i)))
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# else
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# define _GL_ATTRIBUTE_DEALLOC(f, i)
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# endif
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#endif
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/* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly
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allocated memory. */
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/* Applies to: functions. */
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#ifndef _GL_ATTRIBUTE_MALLOC
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# if __GNUC__ >= 3 || defined __clang__
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# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
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# else
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# define _GL_ATTRIBUTE_MALLOC
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# endif
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#endif
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/* The __attribute__ feature is available in gcc versions 2.5 and later.
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The attribute __pure__ was added in gcc 2.96. */
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#ifndef _GL_ATTRIBUTE_PURE
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# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) || defined __clang__
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# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
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# else
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# define _GL_ATTRIBUTE_PURE /* empty */
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# endif
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#endif
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
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/* C++ compatible function declaration macros.
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Copyright (C) 2010-2024 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published
|
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by the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
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|
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _GL_CXXDEFS_H
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#define _GL_CXXDEFS_H
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/* Begin/end the GNULIB_NAMESPACE namespace. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE {
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# define _GL_END_NAMESPACE }
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#else
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# define _GL_BEGIN_NAMESPACE
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# define _GL_END_NAMESPACE
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#endif
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/* The three most frequent use cases of these macros are:
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* For providing a substitute for a function that is missing on some
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platforms, but is declared and works fine on the platforms on which
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it exists:
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#if @GNULIB_FOO@
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# if !@HAVE_FOO@
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_GL_FUNCDECL_SYS (foo, ...);
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# endif
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_GL_CXXALIAS_SYS (foo, ...);
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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* For providing a replacement for a function that exists on all platforms,
|
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but is broken/insufficient and needs to be replaced on some platforms:
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#if @GNULIB_FOO@
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# if @REPLACE_FOO@
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef foo
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# define foo rpl_foo
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# endif
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_GL_FUNCDECL_RPL (foo, ...);
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_GL_CXXALIAS_RPL (foo, ...);
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# else
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_GL_CXXALIAS_SYS (foo, ...);
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# endif
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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* For providing a replacement for a function that exists on some platforms
|
|
but is broken/insufficient and needs to be replaced on some of them and
|
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is additionally either missing or undeclared on some other platforms:
|
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|
|
#if @GNULIB_FOO@
|
|
# if @REPLACE_FOO@
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|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
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# undef foo
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# define foo rpl_foo
|
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# endif
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_GL_FUNCDECL_RPL (foo, ...);
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|
_GL_CXXALIAS_RPL (foo, ...);
|
|
# else
|
|
# if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@
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|
_GL_FUNCDECL_SYS (foo, ...);
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|
# endif
|
|
_GL_CXXALIAS_SYS (foo, ...);
|
|
# endif
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_GL_CXXALIASWARN (foo);
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#elif defined GNULIB_POSIXCHECK
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...
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#endif
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*/
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/* _GL_EXTERN_C declaration;
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performs the declaration with C linkage. */
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|
#if defined __cplusplus
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# define _GL_EXTERN_C extern "C"
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|
#else
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|
# define _GL_EXTERN_C extern
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|
#endif
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|
|
/* _GL_EXTERN_C_FUNC declaration;
|
|
performs the declaration of a function with C linkage. */
|
|
#if defined __cplusplus
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# define _GL_EXTERN_C_FUNC extern "C"
|
|
#else
|
|
/* In C mode, omit the 'extern' keyword, because attributes in bracket syntax
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|
are not allowed between 'extern' and the return type (see gnulib-common.m4).
|
|
*/
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# define _GL_EXTERN_C_FUNC
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#endif
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|
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/* _GL_FUNCDECL_RPL (func, rettype, parameters, [attributes]);
|
|
declares a replacement function, named rpl_func, with the given prototype,
|
|
consisting of return type, parameters, and attributes.
|
|
Although attributes are optional, the comma before them is required
|
|
for portability to C17 and earlier. The attribute _GL_ATTRIBUTE_NOTHROW,
|
|
if needed, must be placed after the _GL_FUNCDECL_RPL invocation,
|
|
at the end of the declaration.
|
|
Examples:
|
|
_GL_FUNCDECL_RPL (free, void, (void *ptr), ) _GL_ATTRIBUTE_NOTHROW;
|
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_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...),
|
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_GL_ARG_NONNULL ((1)));
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|
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Note: Attributes, such as _GL_ATTRIBUTE_DEPRECATED, are supported in front
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of a _GL_FUNCDECL_RPL invocation only in C mode, not in C++ mode. (That's
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because
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[[...]] extern "C" <declaration>;
|
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is invalid syntax in C++.)
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*/
|
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#define _GL_FUNCDECL_RPL(func,rettype,parameters,...) \
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_GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters, __VA_ARGS__)
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#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters,...) \
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_GL_EXTERN_C_FUNC __VA_ARGS__ rettype rpl_func parameters
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|
/* _GL_FUNCDECL_SYS (func, rettype, parameters, [attributes]);
|
|
declares the system function, named func, with the given prototype,
|
|
consisting of return type, parameters, and attributes.
|
|
Although attributes are optional, the comma before them is required
|
|
for portability to C17 and earlier. The attribute _GL_ATTRIBUTE_NOTHROW,
|
|
if needed, must be placed after the _GL_FUNCDECL_RPL invocation,
|
|
at the end of the declaration.
|
|
Examples:
|
|
_GL_FUNCDECL_SYS (getumask, mode_t, (void), ) _GL_ATTRIBUTE_NOTHROW;
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_GL_FUNCDECL_SYS (posix_openpt, int, (int flags), _GL_ATTRIBUTE_NODISCARD);
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|
*/
|
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#define _GL_FUNCDECL_SYS(func,rettype,parameters,...) \
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_GL_EXTERN_C_FUNC __VA_ARGS__ rettype func parameters
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|
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/* _GL_CXXALIAS_RPL (func, rettype, parameters);
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|
declares a C++ alias called GNULIB_NAMESPACE::func
|
|
that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
|
|
Example:
|
|
_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
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|
|
|
Wrapping rpl_func in an object with an inline conversion operator
|
|
avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
|
|
actually used in the program. */
|
|
#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
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|
_GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
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|
# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
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|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return ::rpl_func; \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIAS_MDA (func, rettype, parameters);
|
|
is to be used when func is a Microsoft deprecated alias, on native Windows.
|
|
It declares a C++ alias called GNULIB_NAMESPACE::func
|
|
that redirects to _func, if GNULIB_NAMESPACE is defined.
|
|
Example:
|
|
_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
|
|
*/
|
|
#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
|
|
_GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
|
|
|
|
/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
|
|
is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
|
|
except that the C function rpl_func may have a slightly different
|
|
declaration. A cast is used to silence the "invalid conversion" error
|
|
that would otherwise occur. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
|
|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
|
|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return reinterpret_cast<type>(::rpl_func); \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters);
|
|
is like _GL_CXXALIAS_MDA (func, rettype, parameters);
|
|
except that the C function func may have a slightly different declaration.
|
|
A cast is used to silence the "invalid conversion" error that would
|
|
otherwise occur. */
|
|
#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
|
|
_GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
|
|
|
|
/* _GL_CXXALIAS_SYS (func, rettype, parameters);
|
|
declares a C++ alias called GNULIB_NAMESPACE::func
|
|
that redirects to the system provided function func, if GNULIB_NAMESPACE
|
|
is defined.
|
|
Example:
|
|
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
|
|
|
|
Wrapping func in an object with an inline conversion operator
|
|
avoids a reference to func unless GNULIB_NAMESPACE::func is
|
|
actually used in the program. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
|
|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
|
|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return ::func; \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
|
|
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
|
|
except that the C function func may have a slightly different declaration.
|
|
A cast is used to silence the "invalid conversion" error that would
|
|
otherwise occur. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
|
|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
|
|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return reinterpret_cast<type>(::func); \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
|
|
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
|
|
except that the C function is picked among a set of overloaded functions,
|
|
namely the one with rettype2 and parameters2. Two consecutive casts
|
|
are used to silence the "cannot find a match" and "invalid conversion"
|
|
errors that would otherwise occur. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
/* The outer cast must be a reinterpret_cast.
|
|
The inner cast: When the function is defined as a set of overloaded
|
|
functions, it works as a static_cast<>, choosing the designated variant.
|
|
When the function is defined as a single variant, it works as a
|
|
reinterpret_cast<>. The parenthesized cast syntax works both ways. */
|
|
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
|
|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
|
|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIASWARN (func);
|
|
causes a warning to be emitted when ::func is used but not when
|
|
GNULIB_NAMESPACE::func is used. func must be defined without overloaded
|
|
variants. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIASWARN(func) \
|
|
_GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
|
|
# define _GL_CXXALIASWARN_1(func,namespace) \
|
|
_GL_CXXALIASWARN_2 (func, namespace)
|
|
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
|
|
we enable the warning only when not optimizing. */
|
|
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
|
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
|
_GL_WARN_ON_USE (func, \
|
|
"The symbol ::" #func " refers to the system function. " \
|
|
"Use " #namespace "::" #func " instead.")
|
|
# elif (__GNUC__ >= 3 || defined __clang__) && GNULIB_STRICT_CHECKING
|
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
|
extern __typeof__ (func) func
|
|
# else
|
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
# endif
|
|
#else
|
|
# define _GL_CXXALIASWARN(func) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
|
|
causes a warning to be emitted when the given overloaded variant of ::func
|
|
is used but not when GNULIB_NAMESPACE::func is used. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
|
|
_GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
|
|
GNULIB_NAMESPACE)
|
|
# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
|
|
_GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
|
|
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
|
|
we enable the warning only when not optimizing. */
|
|
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
|
|
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
|
|
_GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
|
|
"The symbol ::" #func " refers to the system function. " \
|
|
"Use " #namespace "::" #func " instead.")
|
|
# else
|
|
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
# endif
|
|
#else
|
|
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
#endif /* _GL_CXXDEFS_H */
|
|
|
|
/* The definition of _GL_ARG_NONNULL is copied here. */
|
|
/* A C macro for declaring that specific arguments must not be NULL.
|
|
Copyright (C) 2009-2024 Free Software Foundation, Inc.
|
|
|
|
This program is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published
|
|
by the Free Software Foundation; either version 2 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
|
|
that the values passed as arguments n, ..., m must be non-NULL pointers.
|
|
n = 1 stands for the first argument, n = 2 for the second argument etc. */
|
|
#ifndef _GL_ARG_NONNULL
|
|
# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
|
|
# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
|
|
# else
|
|
# define _GL_ARG_NONNULL(params)
|
|
# endif
|
|
#endif
|
|
|
|
/* The definition of _GL_WARN_ON_USE is copied here. */
|
|
/* A C macro for emitting warnings if a function is used.
|
|
Copyright (C) 2010-2024 Free Software Foundation, Inc.
|
|
|
|
This program is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published
|
|
by the Free Software Foundation; either version 2 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
|
|
for FUNCTION which will then trigger a compiler warning containing
|
|
the text of "literal string" anywhere that function is called, if
|
|
supported by the compiler. If the compiler does not support this
|
|
feature, the macro expands to an unused extern declaration.
|
|
|
|
_GL_WARN_ON_USE_ATTRIBUTE ("literal string") expands to the
|
|
attribute used in _GL_WARN_ON_USE. If the compiler does not support
|
|
this feature, it expands to empty.
|
|
|
|
These macros are useful for marking a function as a potential
|
|
portability trap, with the intent that "literal string" include
|
|
instructions on the replacement function that should be used
|
|
instead.
|
|
_GL_WARN_ON_USE is for functions with 'extern' linkage.
|
|
_GL_WARN_ON_USE_ATTRIBUTE is for functions with 'static' or 'inline'
|
|
linkage.
|
|
|
|
_GL_WARN_ON_USE should not be used more than once for a given function
|
|
in a given compilation unit (because this may generate a warning even
|
|
if the function is never called).
|
|
|
|
However, one of the reasons that a function is a portability trap is
|
|
if it has the wrong signature. Declaring FUNCTION with a different
|
|
signature in C is a compilation error, so this macro must use the
|
|
same type as any existing declaration so that programs that avoid
|
|
the problematic FUNCTION do not fail to compile merely because they
|
|
included a header that poisoned the function. But this implies that
|
|
_GL_WARN_ON_USE is only safe to use if FUNCTION is known to already
|
|
have a declaration. Use of this macro implies that there must not
|
|
be any other macro hiding the declaration of FUNCTION; but
|
|
undefining FUNCTION first is part of the poisoning process anyway
|
|
(although for symbols that are provided only via a macro, the result
|
|
is a compilation error rather than a warning containing
|
|
"literal string"). Also note that in C++, it is only safe to use if
|
|
FUNCTION has no overloads.
|
|
|
|
For an example, it is possible to poison 'getline' by:
|
|
- adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
|
|
[getline]) in configure.ac, which potentially defines
|
|
HAVE_RAW_DECL_GETLINE
|
|
- adding this code to a header that wraps the system <stdio.h>:
|
|
#undef getline
|
|
#if HAVE_RAW_DECL_GETLINE
|
|
_GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
|
|
"not universally present; use the gnulib module getline");
|
|
#endif
|
|
|
|
It is not possible to directly poison global variables. But it is
|
|
possible to write a wrapper accessor function, and poison that
|
|
(less common usage, like &environ, will cause a compilation error
|
|
rather than issue the nice warning, but the end result of informing
|
|
the developer about their portability problem is still achieved):
|
|
#if HAVE_RAW_DECL_ENVIRON
|
|
static char ***
|
|
rpl_environ (void) { return &environ; }
|
|
_GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
|
|
# undef environ
|
|
# define environ (*rpl_environ ())
|
|
#endif
|
|
or better (avoiding contradictory use of 'static' and 'extern'):
|
|
#if HAVE_RAW_DECL_ENVIRON
|
|
static char ***
|
|
_GL_WARN_ON_USE_ATTRIBUTE ("environ is not always properly declared")
|
|
rpl_environ (void) { return &environ; }
|
|
# undef environ
|
|
# define environ (*rpl_environ ())
|
|
#endif
|
|
*/
|
|
#ifndef _GL_WARN_ON_USE
|
|
|
|
# if (4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)) && !defined __clang__
|
|
/* A compiler attribute is available in gcc versions 4.3.0 and later. */
|
|
# define _GL_WARN_ON_USE(function, message) \
|
|
_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__ (message)))
|
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
|
|
__attribute__ ((__warning__ (message)))
|
|
# elif __clang_major__ >= 4
|
|
/* Another compiler attribute is available in clang. */
|
|
# define _GL_WARN_ON_USE(function, message) \
|
|
_GL_WARN_EXTERN_C __typeof__ (function) function \
|
|
__attribute__ ((__diagnose_if__ (1, message, "warning")))
|
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
|
|
__attribute__ ((__diagnose_if__ (1, message, "warning")))
|
|
# elif (__GNUC__ >= 3 || defined __clang__) && GNULIB_STRICT_CHECKING
|
|
/* Verify the existence of the function. */
|
|
# define _GL_WARN_ON_USE(function, message) \
|
|
_GL_WARN_EXTERN_C __typeof__ (function) function
|
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message)
|
|
# else /* Unsupported. */
|
|
# define _GL_WARN_ON_USE(function, message) \
|
|
_GL_WARN_EXTERN_C int _gl_warn_on_use
|
|
# define _GL_WARN_ON_USE_ATTRIBUTE(message)
|
|
# endif
|
|
#endif
|
|
|
|
/* _GL_WARN_ON_USE_CXX (function, rettype_gcc, rettype_clang, parameters_and_attributes, "message")
|
|
is like _GL_WARN_ON_USE (function, "message"), except that in C++ mode the
|
|
function is declared with the given prototype, consisting of return type,
|
|
parameters, and attributes.
|
|
This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
|
|
not work in this case. */
|
|
#ifndef _GL_WARN_ON_USE_CXX
|
|
# if !defined __cplusplus
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
_GL_WARN_ON_USE (function, msg)
|
|
# else
|
|
# if (4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)) && !defined __clang__
|
|
/* A compiler attribute is available in gcc versions 4.3.0 and later. */
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
extern rettype_gcc function parameters_and_attributes \
|
|
__attribute__ ((__warning__ (msg)))
|
|
# elif __clang_major__ >= 4
|
|
/* Another compiler attribute is available in clang. */
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
extern rettype_clang function parameters_and_attributes \
|
|
__attribute__ ((__diagnose_if__ (1, msg, "warning")))
|
|
# elif (__GNUC__ >= 3 || defined __clang__) && GNULIB_STRICT_CHECKING
|
|
/* Verify the existence of the function. */
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
extern rettype_gcc function parameters_and_attributes
|
|
# else /* Unsupported. */
|
|
# define _GL_WARN_ON_USE_CXX(function,rettype_gcc,rettype_clang,parameters_and_attributes,msg) \
|
|
_GL_WARN_EXTERN_C int _gl_warn_on_use
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
/* _GL_WARN_EXTERN_C declaration;
|
|
performs the declaration with C linkage. */
|
|
#ifndef _GL_WARN_EXTERN_C
|
|
# if defined __cplusplus
|
|
# define _GL_WARN_EXTERN_C extern "C"
|
|
# else
|
|
# define _GL_WARN_EXTERN_C extern
|
|
# endif
|
|
#endif
|
|
|
|
|
|
/* Declare overridden functions. */
|
|
|
|
#if 1
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef closedir
|
|
# define closedir rpl_closedir
|
|
# define GNULIB_defined_closedir 1
|
|
# endif
|
|
_GL_FUNCDECL_RPL (closedir, int, (DIR *dirp), _GL_ARG_NONNULL ((1)));
|
|
_GL_CXXALIAS_RPL (closedir, int, (DIR *dirp));
|
|
# else
|
|
# if !1
|
|
_GL_FUNCDECL_SYS (closedir, int, (DIR *dirp), _GL_ARG_NONNULL ((1)));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (closedir, int, (DIR *dirp));
|
|
# endif
|
|
_GL_CXXALIASWARN (closedir);
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef closedir
|
|
# if HAVE_RAW_DECL_CLOSEDIR
|
|
_GL_WARN_ON_USE (closedir, "closedir is not portable - "
|
|
"use gnulib module closedir for portability");
|
|
# endif
|
|
#endif
|
|
|
|
#if 1
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef opendir
|
|
# define opendir rpl_opendir
|
|
# define GNULIB_defined_opendir 1
|
|
# endif
|
|
_GL_FUNCDECL_RPL (opendir, DIR *,
|
|
(const char *dir_name),
|
|
_GL_ARG_NONNULL ((1))
|
|
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
|
|
_GL_CXXALIAS_RPL (opendir, DIR *, (const char *dir_name));
|
|
# else
|
|
# if !1 || (__GNUC__ >= 11 && !defined __clang__)
|
|
_GL_FUNCDECL_SYS (opendir, DIR *,
|
|
(const char *dir_name),
|
|
_GL_ARG_NONNULL ((1))
|
|
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (opendir, DIR *, (const char *dir_name));
|
|
# endif
|
|
_GL_CXXALIASWARN (opendir);
|
|
#else
|
|
# if 1 && !GNULIB_defined_DIR \
|
|
&& (__GNUC__ >= 11 && !defined __clang__) && !defined opendir
|
|
/* For -Wmismatched-dealloc: Associate opendir with closedir or
|
|
rpl_closedir. */
|
|
_GL_FUNCDECL_SYS (opendir, DIR *,
|
|
(const char *dir_name),
|
|
_GL_ARG_NONNULL ((1))
|
|
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
|
|
# endif
|
|
# if defined GNULIB_POSIXCHECK
|
|
# undef opendir
|
|
# if HAVE_RAW_DECL_OPENDIR
|
|
_GL_WARN_ON_USE (opendir, "opendir is not portable - "
|
|
"use gnulib module opendir for portability");
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#if 1
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef readdir
|
|
# define readdir rpl_readdir
|
|
# endif
|
|
_GL_FUNCDECL_RPL (readdir, struct dirent *, (DIR *dirp), _GL_ARG_NONNULL ((1)));
|
|
_GL_CXXALIAS_RPL (readdir, struct dirent *, (DIR *dirp));
|
|
# else
|
|
# if !1
|
|
_GL_FUNCDECL_SYS (readdir, struct dirent *, (DIR *dirp), _GL_ARG_NONNULL ((1)));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (readdir, struct dirent *, (DIR *dirp));
|
|
# endif
|
|
_GL_CXXALIASWARN (readdir);
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef readdir
|
|
# if HAVE_RAW_DECL_READDIR
|
|
_GL_WARN_ON_USE (readdir, "readdir is not portable - "
|
|
"use gnulib module readdir for portability");
|
|
# endif
|
|
#endif
|
|
|
|
#if 1
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef rewinddir
|
|
# define rewinddir rpl_rewinddir
|
|
# endif
|
|
_GL_FUNCDECL_RPL (rewinddir, void, (DIR *dirp), _GL_ARG_NONNULL ((1)));
|
|
_GL_CXXALIAS_RPL (rewinddir, void, (DIR *dirp));
|
|
# else
|
|
# if !1
|
|
_GL_FUNCDECL_SYS (rewinddir, void, (DIR *dirp), _GL_ARG_NONNULL ((1)));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (rewinddir, void, (DIR *dirp));
|
|
# endif
|
|
_GL_CXXALIASWARN (rewinddir);
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef rewinddir
|
|
# if HAVE_RAW_DECL_REWINDDIR
|
|
_GL_WARN_ON_USE (rewinddir, "rewinddir is not portable - "
|
|
"use gnulib module rewinddir for portability");
|
|
# endif
|
|
#endif
|
|
|
|
#if 1
|
|
/* Return the file descriptor associated with the given directory stream,
|
|
or -1 if none exists. */
|
|
# if 0
|
|
/* On kLIBC, dirfd() is a macro that does not work. Undefine it. */
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE) || defined dirfd
|
|
# 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 !(1 || 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 1
|
|
/* 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 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef fdopendir
|
|
# define fdopendir rpl_fdopendir
|
|
# endif
|
|
_GL_FUNCDECL_RPL (fdopendir, DIR *,
|
|
(int fd),
|
|
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
|
|
_GL_CXXALIAS_RPL (fdopendir, DIR *, (int fd));
|
|
# else
|
|
# if !1 || !1 \
|
|
|| (__GNUC__ >= 11 && !defined __clang__)
|
|
_GL_FUNCDECL_SYS (fdopendir, DIR *,
|
|
(int fd),
|
|
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (fdopendir, DIR *, (int fd));
|
|
# endif
|
|
_GL_CXXALIASWARN (fdopendir);
|
|
#else
|
|
# if 1 \
|
|
&& (__GNUC__ >= 11 && !defined __clang__) && !defined fdopendir
|
|
/* For -Wmismatched-dealloc: Associate fdopendir with closedir or
|
|
rpl_closedir. */
|
|
_GL_FUNCDECL_SYS (fdopendir, DIR *,
|
|
(int fd),
|
|
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC (closedir, 1));
|
|
# endif
|
|
# if 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
|
|
#endif
|
|
|
|
#if 0
|
|
/* 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 !1
|
|
_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 0
|
|
/* Compare two 'struct dirent' entries alphabetically. */
|
|
# if !1
|
|
_GL_FUNCDECL_SYS (alphasort, int,
|
|
(const struct dirent **, const struct dirent **),
|
|
_GL_ATTRIBUTE_PURE
|
|
_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 */
|