953 lines
35 KiB
C++
953 lines
35 KiB
C++
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
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/* Like <fcntl.h>, but with non-working flags defined to 0.
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Copyright (C) 2006-2022 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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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
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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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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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/* written by Paul Eggert */
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#if __GNUC__ >= 3
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#pragma GCC system_header
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#endif
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#if defined __need_system_fcntl_h
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/* Special invocation convention. */
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/* Needed before <sys/stat.h>.
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May also define off_t to a 64-bit type on native Windows. */
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#include <sys/types.h>
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/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
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<fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
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But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
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extern "C" { ... } block, which leads to errors in C++ mode with the
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overridden <sys/stat.h> from gnulib. These errors are known to be gone
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with g++ version >= 4.3. */
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#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))))
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# include <sys/stat.h>
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#endif
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#include_next <fcntl.h>
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/* Native Windows platforms declare open(), creat() in <io.h>. */
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#if (0 || 1 || defined GNULIB_POSIXCHECK) \
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&& (defined _WIN32 && ! defined __CYGWIN__)
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# include <io.h>
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#endif
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#else
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/* Normal invocation convention. */
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#ifndef _GL_FCNTL_H
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/* Needed before <sys/stat.h>.
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May also define off_t to a 64-bit type on native Windows. */
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#include <sys/types.h>
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/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
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<fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
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But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
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extern "C" { ... } block, which leads to errors in C++ mode with the
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overridden <sys/stat.h> from gnulib. These errors are known to be gone
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with g++ version >= 4.3. */
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#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))))
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# include <sys/stat.h>
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#endif
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/* The include_next requires a split double-inclusion guard. */
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#include_next <fcntl.h>
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/* Native Windows platforms declare open(), creat() in <io.h>. */
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#if (0 || 1 || defined GNULIB_POSIXCHECK) \
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&& (defined _WIN32 && ! defined __CYGWIN__)
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# include <io.h>
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#endif
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#ifndef _GL_FCNTL_H
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#define _GL_FCNTL_H
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#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
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# include <unistd.h>
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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) 2010-2022 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
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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
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(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
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Lesser General Public License for more details.
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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
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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@
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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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# if !@HAVE_FOO@ or if !@HAVE_DECL_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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# 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_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
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declares a replacement function, named rpl_func, with the given prototype,
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consisting of return type, parameters, and attributes.
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Example:
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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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#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
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_GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
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#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C rettype rpl_func parameters_and_attributes
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/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
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declares the system function, named func, with the given prototype,
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consisting of return type, parameters, and attributes.
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Example:
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_GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
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_GL_ARG_NONNULL ((1)));
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*/
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#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C rettype func parameters_and_attributes
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/* _GL_CXXALIAS_RPL (func, rettype, parameters);
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declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
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Example:
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_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
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avoids a reference to rpl_func unless GNULIB_NAMESPACE::func is
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actually used in the program. */
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#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
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_GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
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#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 \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return ::rpl_func; \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_MDA (func, rettype, parameters);
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is to be used when func is a Microsoft deprecated alias, on native Windows.
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It declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to _func, if GNULIB_NAMESPACE is defined.
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Example:
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_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
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*/
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#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
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_GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
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/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
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is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
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except that the C function rpl_func may have a slightly different
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declaration. A cast is used to silence the "invalid conversion" error
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that would otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>(::rpl_func); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters);
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is like _GL_CXXALIAS_MDA (func, rettype, parameters);
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except that the C function func may have a slightly different declaration.
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A cast is used to silence the "invalid conversion" error that would
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otherwise occur. */
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#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
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_GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
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/* _GL_CXXALIAS_SYS (func, rettype, parameters);
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declares a C++ alias called GNULIB_NAMESPACE::func
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that redirects to the system provided function func, if GNULIB_NAMESPACE
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is defined.
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Example:
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_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
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Wrapping func in an object with an inline conversion operator
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avoids a reference to func unless GNULIB_NAMESPACE::func is
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actually used in the program. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return ::func; \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
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is like _GL_CXXALIAS_SYS (func, rettype, parameters);
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except that the C function func may have a slightly different declaration.
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A cast is used to silence the "invalid conversion" error that would
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otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>(::func); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
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is like _GL_CXXALIAS_SYS (func, rettype, parameters);
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except that the C function is picked among a set of overloaded functions,
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namely the one with rettype2 and parameters2. Two consecutive casts
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are used to silence the "cannot find a match" and "invalid conversion"
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errors that would otherwise occur. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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/* The outer cast must be a reinterpret_cast.
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The inner cast: When the function is defined as a set of overloaded
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functions, it works as a static_cast<>, choosing the designated variant.
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When the function is defined as a single variant, it works as a
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reinterpret_cast<>. The parenthesized cast syntax works both ways. */
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# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
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namespace GNULIB_NAMESPACE \
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{ \
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static const struct _gl_ ## func ## _wrapper \
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{ \
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typedef rettype (*type) parameters; \
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\
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inline operator type () const \
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{ \
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return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
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} \
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} func = {}; \
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} \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#else
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# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIASWARN (func);
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causes a warning to be emitted when ::func is used but not when
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GNULIB_NAMESPACE::func is used. func must be defined without overloaded
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variants. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIASWARN(func) \
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_GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
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# define _GL_CXXALIASWARN_1(func,namespace) \
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_GL_CXXALIASWARN_2 (func, namespace)
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/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
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we enable the warning only when not optimizing. */
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# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
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# define _GL_CXXALIASWARN_2(func,namespace) \
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_GL_WARN_ON_USE (func, \
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"The symbol ::" #func " refers to the system function. " \
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"Use " #namespace "::" #func " instead.")
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# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
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# define _GL_CXXALIASWARN_2(func,namespace) \
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extern __typeof__ (func) func
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# else
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# define _GL_CXXALIASWARN_2(func,namespace) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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# endif
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#else
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# define _GL_CXXALIASWARN(func) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
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causes a warning to be emitted when the given overloaded variant of ::func
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is used but not when GNULIB_NAMESPACE::func is used. */
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#if defined __cplusplus && defined GNULIB_NAMESPACE
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# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
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_GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
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GNULIB_NAMESPACE)
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# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
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_GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
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/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
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we enable the warning only when not optimizing. */
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# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
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# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
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_GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
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"The symbol ::" #func " refers to the system function. " \
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"Use " #namespace "::" #func " instead.")
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# else
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# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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# endif
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#else
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# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
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_GL_EXTERN_C int _gl_cxxalias_dummy
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#endif
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#endif /* _GL_CXXDEFS_H */
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/* The definition of _GL_ARG_NONNULL is copied here. */
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/* A C macro for declaring that specific arguments must not be NULL.
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Copyright (C) 2009-2022 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify it
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|
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
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|
(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
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
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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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/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
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that the values passed as arguments n, ..., m must be non-NULL pointers.
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n = 1 stands for the first argument, n = 2 for the second argument etc. */
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#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) 2010-2022 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.
|
|
|
|
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__)
|
|
/* 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 && 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__)
|
|
/* 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 && 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 0
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef creat
|
|
# define creat rpl_creat
|
|
# endif
|
|
_GL_FUNCDECL_RPL (creat, int, (const char *filename, mode_t mode)
|
|
_GL_ARG_NONNULL ((1)));
|
|
_GL_CXXALIAS_RPL (creat, int, (const char *filename, mode_t mode));
|
|
# elif defined _WIN32 && !defined __CYGWIN__
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef creat
|
|
# define creat _creat
|
|
# endif
|
|
_GL_CXXALIAS_MDA (creat, int, (const char *filename, mode_t mode));
|
|
# else
|
|
_GL_CXXALIAS_SYS (creat, int, (const char *filename, mode_t mode));
|
|
# endif
|
|
_GL_CXXALIASWARN (creat);
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef creat
|
|
/* Assume creat is always declared. */
|
|
_GL_WARN_ON_USE (creat, "creat is not always POSIX compliant - "
|
|
"use gnulib module creat for portability");
|
|
#elif 1
|
|
/* On native Windows, map 'creat' to '_creat', so that -loldnames is not
|
|
required. In C++ with GNULIB_NAMESPACE, avoid differences between
|
|
platforms by defining GNULIB_NAMESPACE::creat always. */
|
|
# if defined _WIN32 && !defined __CYGWIN__
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef creat
|
|
# define creat _creat
|
|
# endif
|
|
/* Need to cast, because in mingw the last argument is 'int mode'. */
|
|
_GL_CXXALIAS_MDA_CAST (creat, int, (const char *filename, mode_t mode));
|
|
# else
|
|
_GL_CXXALIAS_SYS (creat, int, (const char *filename, mode_t mode));
|
|
# endif
|
|
_GL_CXXALIASWARN (creat);
|
|
#endif
|
|
|
|
#if 1
|
|
# if 1
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef fcntl
|
|
# define fcntl rpl_fcntl
|
|
# endif
|
|
_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
|
|
_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
|
|
# if !GNULIB_defined_rpl_fcntl
|
|
# define GNULIB_defined_rpl_fcntl 1
|
|
# endif
|
|
# else
|
|
# if !1
|
|
_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
|
|
# if !GNULIB_defined_fcntl
|
|
# define GNULIB_defined_fcntl 1
|
|
# endif
|
|
# endif
|
|
_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
|
|
# endif
|
|
_GL_CXXALIASWARN (fcntl);
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef fcntl
|
|
# if HAVE_RAW_DECL_FCNTL
|
|
_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
|
|
"use gnulib module fcntl for portability");
|
|
# endif
|
|
#endif
|
|
|
|
#if 1
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef open
|
|
# define open rpl_open
|
|
# endif
|
|
_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
|
|
_GL_ARG_NONNULL ((1)));
|
|
_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
|
|
# elif defined _WIN32 && !defined __CYGWIN__
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef open
|
|
# define open _open
|
|
# endif
|
|
_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
|
|
# else
|
|
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
|
|
# endif
|
|
/* On HP-UX 11, in C++ mode, open() is defined as an inline function with a
|
|
default argument. _GL_CXXALIASWARN does not work in this case. */
|
|
# if !defined __hpux
|
|
_GL_CXXALIASWARN (open);
|
|
# endif
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef open
|
|
/* Assume open is always declared. */
|
|
_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
|
|
"use gnulib module open for portability");
|
|
#elif 1
|
|
/* On native Windows, map 'open' to '_open', so that -loldnames is not
|
|
required. In C++ with GNULIB_NAMESPACE, avoid differences between
|
|
platforms by defining GNULIB_NAMESPACE::open always. */
|
|
# if defined _WIN32 && !defined __CYGWIN__
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef open
|
|
# define open _open
|
|
# endif
|
|
_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
|
|
# else
|
|
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
|
|
# endif
|
|
# if !defined __hpux
|
|
_GL_CXXALIASWARN (open);
|
|
# endif
|
|
#endif
|
|
|
|
#if 1
|
|
# if 0
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef openat
|
|
# define openat rpl_openat
|
|
# endif
|
|
_GL_FUNCDECL_RPL (openat, int,
|
|
(int fd, char const *file, int flags, /* mode_t mode */ ...)
|
|
_GL_ARG_NONNULL ((2)));
|
|
_GL_CXXALIAS_RPL (openat, int,
|
|
(int fd, char const *file, int flags, /* mode_t mode */ ...));
|
|
# else
|
|
# if !1
|
|
_GL_FUNCDECL_SYS (openat, int,
|
|
(int fd, char const *file, int flags, /* mode_t mode */ ...)
|
|
_GL_ARG_NONNULL ((2)));
|
|
# endif
|
|
_GL_CXXALIAS_SYS (openat, int,
|
|
(int fd, char const *file, int flags, /* mode_t mode */ ...));
|
|
# endif
|
|
_GL_CXXALIASWARN (openat);
|
|
#elif defined GNULIB_POSIXCHECK
|
|
# undef openat
|
|
# if HAVE_RAW_DECL_OPENAT
|
|
_GL_WARN_ON_USE (openat, "openat is not portable - "
|
|
"use gnulib module openat for portability");
|
|
# endif
|
|
#endif
|
|
|
|
|
|
/* Fix up the FD_* macros, only known to be missing on mingw. */
|
|
|
|
#ifndef FD_CLOEXEC
|
|
# define FD_CLOEXEC 1
|
|
#endif
|
|
|
|
/* Fix up the supported F_* macros. Intentionally leave other F_*
|
|
macros undefined. Only known to be missing on mingw. */
|
|
|
|
#ifndef F_DUPFD_CLOEXEC
|
|
# define F_DUPFD_CLOEXEC 0x40000000
|
|
/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
|
|
# define GNULIB_defined_F_DUPFD_CLOEXEC 1
|
|
#else
|
|
# define GNULIB_defined_F_DUPFD_CLOEXEC 0
|
|
#endif
|
|
|
|
#ifndef F_DUPFD
|
|
# define F_DUPFD 1
|
|
#endif
|
|
|
|
#ifndef F_GETFD
|
|
# define F_GETFD 2
|
|
#endif
|
|
|
|
/* Fix up the O_* macros. */
|
|
|
|
/* AIX 7.1 with XL C 12.1 defines O_CLOEXEC, O_NOFOLLOW, and O_TTY_INIT
|
|
to values outside 'int' range, so omit these misdefinitions.
|
|
But avoid namespace pollution on non-AIX systems. */
|
|
#ifdef _AIX
|
|
# include <limits.h>
|
|
# if defined O_CLOEXEC && ! (INT_MIN <= O_CLOEXEC && O_CLOEXEC <= INT_MAX)
|
|
# undef O_CLOEXEC
|
|
# endif
|
|
# if defined O_NOFOLLOW && ! (INT_MIN <= O_NOFOLLOW && O_NOFOLLOW <= INT_MAX)
|
|
# undef O_NOFOLLOW
|
|
# endif
|
|
# if defined O_TTY_INIT && ! (INT_MIN <= O_TTY_INIT && O_TTY_INIT <= INT_MAX)
|
|
# undef O_TTY_INIT
|
|
# endif
|
|
#endif
|
|
|
|
#if !defined O_DIRECT && defined O_DIRECTIO
|
|
/* Tru64 spells it 'O_DIRECTIO'. */
|
|
# define O_DIRECT O_DIRECTIO
|
|
#endif
|
|
|
|
#if !defined O_CLOEXEC && defined O_NOINHERIT
|
|
/* Mingw spells it 'O_NOINHERIT'. */
|
|
# define O_CLOEXEC O_NOINHERIT
|
|
#endif
|
|
|
|
#ifndef O_CLOEXEC
|
|
# define O_CLOEXEC 0x40000000 /* Try to not collide with system O_* flags. */
|
|
# define GNULIB_defined_O_CLOEXEC 1
|
|
#else
|
|
# define GNULIB_defined_O_CLOEXEC 0
|
|
#endif
|
|
|
|
#ifndef O_DIRECT
|
|
# define O_DIRECT 0
|
|
#endif
|
|
|
|
#ifndef O_DIRECTORY
|
|
# define O_DIRECTORY 0
|
|
#endif
|
|
|
|
#ifndef O_DSYNC
|
|
# define O_DSYNC 0
|
|
#endif
|
|
|
|
#ifndef O_EXEC
|
|
# define O_EXEC O_RDONLY /* This is often close enough in older systems. */
|
|
#endif
|
|
|
|
#ifndef O_IGNORE_CTTY
|
|
# define O_IGNORE_CTTY 0
|
|
#endif
|
|
|
|
#ifndef O_NDELAY
|
|
# define O_NDELAY 0
|
|
#endif
|
|
|
|
#ifndef O_NOATIME
|
|
# define O_NOATIME 0
|
|
#endif
|
|
|
|
#ifndef O_NONBLOCK
|
|
# define O_NONBLOCK O_NDELAY
|
|
#endif
|
|
|
|
/* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero
|
|
value of O_NONBLOCK. Otherwise, O_NONBLOCK is defined (above) to O_NDELAY
|
|
or to 0 as fallback. */
|
|
#if 0
|
|
# if O_NONBLOCK
|
|
# define GNULIB_defined_O_NONBLOCK 0
|
|
# else
|
|
# define GNULIB_defined_O_NONBLOCK 1
|
|
# undef O_NONBLOCK
|
|
# define O_NONBLOCK 0x40000000
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef O_NOCTTY
|
|
# define O_NOCTTY 0
|
|
#endif
|
|
|
|
#ifndef O_NOFOLLOW
|
|
# define O_NOFOLLOW 0
|
|
#endif
|
|
|
|
#ifndef O_NOLINK
|
|
# define O_NOLINK 0
|
|
#endif
|
|
|
|
#ifndef O_NOLINKS
|
|
# define O_NOLINKS 0
|
|
#endif
|
|
|
|
#ifndef O_NOTRANS
|
|
# define O_NOTRANS 0
|
|
#endif
|
|
|
|
#ifndef O_RSYNC
|
|
# define O_RSYNC 0
|
|
#endif
|
|
|
|
#ifndef O_SEARCH
|
|
# define O_SEARCH O_RDONLY /* This is often close enough in older systems. */
|
|
#endif
|
|
|
|
#ifndef O_SYNC
|
|
# define O_SYNC 0
|
|
#endif
|
|
|
|
#ifndef O_TTY_INIT
|
|
# define O_TTY_INIT 0
|
|
#endif
|
|
|
|
#if ~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
|
|
# undef O_ACCMODE
|
|
# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
|
|
#endif
|
|
|
|
/* For systems that distinguish between text and binary I/O.
|
|
O_BINARY is usually declared in fcntl.h */
|
|
#if !defined O_BINARY && defined _O_BINARY
|
|
/* For MSC-compatible compilers. */
|
|
# define O_BINARY _O_BINARY
|
|
# define O_TEXT _O_TEXT
|
|
#endif
|
|
|
|
#if defined __BEOS__ || defined __HAIKU__
|
|
/* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
|
|
# undef O_BINARY
|
|
# undef O_TEXT
|
|
#endif
|
|
|
|
#ifndef O_BINARY
|
|
# define O_BINARY 0
|
|
# define O_TEXT 0
|
|
#endif
|
|
|
|
/* Fix up the AT_* macros. */
|
|
|
|
/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
|
|
value exceeds INT_MAX, so its use as an int doesn't conform to the
|
|
C standard, and GCC and Sun C complain in some cases. If the bug
|
|
is present, undef AT_FDCWD here, so it can be redefined below. */
|
|
#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
|
|
# undef AT_FDCWD
|
|
#endif
|
|
|
|
/* Use the same bit pattern as Solaris 9, but with the proper
|
|
signedness. The bit pattern is important, in case this actually is
|
|
Solaris with the above workaround. */
|
|
#ifndef AT_FDCWD
|
|
# define AT_FDCWD (-3041965)
|
|
#endif
|
|
|
|
/* Use the same values as Solaris 9. This shouldn't matter, but
|
|
there's no real reason to differ. */
|
|
#ifndef AT_SYMLINK_NOFOLLOW
|
|
# define AT_SYMLINK_NOFOLLOW 4096
|
|
#endif
|
|
|
|
#ifndef AT_REMOVEDIR
|
|
# define AT_REMOVEDIR 1
|
|
#endif
|
|
|
|
/* Solaris 9 lacks these two, so just pick unique values. */
|
|
#ifndef AT_SYMLINK_FOLLOW
|
|
# define AT_SYMLINK_FOLLOW 2
|
|
#endif
|
|
|
|
#ifndef AT_EACCESS
|
|
# define AT_EACCESS 4
|
|
#endif
|
|
|
|
/* Ignore this flag if not supported. */
|
|
#ifndef AT_NO_AUTOMOUNT
|
|
# define AT_NO_AUTOMOUNT 0
|
|
#endif
|
|
|
|
#endif /* _GL_FCNTL_H */
|
|
#endif /* _GL_FCNTL_H */
|
|
#endif
|