| /* DO NOT EDIT! GENERATED AUTOMATICALLY! */ |
| /* Like <fcntl.h>, but with non-working flags defined to 0. |
| |
| Copyright (C) 2006-2019 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| /* written by Paul Eggert */ |
| |
| #if __GNUC__ >= 3 |
| #pragma GCC system_header |
| #endif |
| |
| |
| #if defined __need_system_fcntl_h |
| /* Special invocation convention. */ |
| |
| /* Needed before <sys/stat.h>. |
| May also define off_t to a 64-bit type on native Windows. */ |
| #include <sys/types.h> |
| /* On some systems other than glibc, <sys/stat.h> is a prerequisite of |
| <fcntl.h>. On glibc systems, we would like to avoid namespace pollution. |
| But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an |
| extern "C" { ... } block, which leads to errors in C++ mode with the |
| overridden <sys/stat.h> from gnulib. These errors are known to be gone |
| with g++ version >= 4.3. */ |
| #if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))) |
| # include <sys/stat.h> |
| #endif |
| #include_next <fcntl.h> |
| |
| /* Native Windows platforms declare open(), creat() in <io.h>. */ |
| #if (0 || 1 || defined GNULIB_POSIXCHECK) \ |
| && (defined _WIN32 && ! defined __CYGWIN__) |
| # include <io.h> |
| #endif |
| |
| #else |
| /* Normal invocation convention. */ |
| |
| #ifndef _GL_FCNTL_H |
| |
| /* Needed before <sys/stat.h>. |
| May also define off_t to a 64-bit type on native Windows. */ |
| #include <sys/types.h> |
| /* On some systems other than glibc, <sys/stat.h> is a prerequisite of |
| <fcntl.h>. On glibc systems, we would like to avoid namespace pollution. |
| But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an |
| extern "C" { ... } block, which leads to errors in C++ mode with the |
| overridden <sys/stat.h> from gnulib. These errors are known to be gone |
| with g++ version >= 4.3. */ |
| #if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))) |
| # include <sys/stat.h> |
| #endif |
| /* The include_next requires a split double-inclusion guard. */ |
| #include_next <fcntl.h> |
| |
| /* Native Windows platforms declare open(), creat() in <io.h>. */ |
| #if (0 || 1 || defined GNULIB_POSIXCHECK) \ |
| && (defined _WIN32 && ! defined __CYGWIN__) |
| # include <io.h> |
| #endif |
| |
| #ifndef _GL_FCNTL_H |
| #define _GL_FCNTL_H |
| |
| #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */ |
| # include <unistd.h> |
| #endif |
| |
| |
| /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
| /* C++ compatible function declaration macros. |
| Copyright (C) 2010-2019 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published |
| by the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| #ifndef _GL_CXXDEFS_H |
| #define _GL_CXXDEFS_H |
| |
| /* Begin/end the GNULIB_NAMESPACE namespace. */ |
| #if defined __cplusplus && defined GNULIB_NAMESPACE |
| # define _GL_BEGIN_NAMESPACE namespace GNULIB_NAMESPACE { |
| # define _GL_END_NAMESPACE } |
| #else |
| # define _GL_BEGIN_NAMESPACE |
| # define _GL_END_NAMESPACE |
| #endif |
| |
| /* The three most frequent use cases of these macros are: |
| |
| * For providing a substitute for a function that is missing on some |
| platforms, but is declared and works fine on the platforms on which |
| it exists: |
| |
| #if @GNULIB_FOO@ |
| # if !@HAVE_FOO@ |
| _GL_FUNCDECL_SYS (foo, ...); |
| # endif |
| _GL_CXXALIAS_SYS (foo, ...); |
| _GL_CXXALIASWARN (foo); |
| #elif defined GNULIB_POSIXCHECK |
| ... |
| #endif |
| |
| * For providing a replacement for a function that exists on all platforms, |
| but is broken/insufficient and needs to be replaced on some platforms: |
| |
| #if @GNULIB_FOO@ |
| # if @REPLACE_FOO@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # undef foo |
| # define foo rpl_foo |
| # endif |
| _GL_FUNCDECL_RPL (foo, ...); |
| _GL_CXXALIAS_RPL (foo, ...); |
| # else |
| _GL_CXXALIAS_SYS (foo, ...); |
| # endif |
| _GL_CXXALIASWARN (foo); |
| #elif defined GNULIB_POSIXCHECK |
| ... |
| #endif |
| |
| * 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 |
| is additionally either missing or undeclared on some other platforms: |
| |
| #if @GNULIB_FOO@ |
| # if @REPLACE_FOO@ |
| # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
| # undef foo |
| # define foo rpl_foo |
| # endif |
| _GL_FUNCDECL_RPL (foo, ...); |
| _GL_CXXALIAS_RPL (foo, ...); |
| # else |
| # if !@HAVE_FOO@ or if !@HAVE_DECL_FOO@ |
| _GL_FUNCDECL_SYS (foo, ...); |
| # endif |
| _GL_CXXALIAS_SYS (foo, ...); |
| # endif |
| _GL_CXXALIASWARN (foo); |
| #elif defined GNULIB_POSIXCHECK |
| ... |
| #endif |
| */ |
| |
| /* _GL_EXTERN_C declaration; |
| performs the declaration with C linkage. */ |
| #if defined __cplusplus |
| # define _GL_EXTERN_C extern "C" |
| #else |
| # define _GL_EXTERN_C extern |
| #endif |
| |
| /* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes); |
| declares a replacement function, named rpl_func, with the given prototype, |
| consisting of return type, parameters, and attributes. |
| Example: |
| _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) |
| _GL_ARG_NONNULL ((1))); |
| */ |
| #define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \ |
| _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes) |
| #define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \ |
| _GL_EXTERN_C rettype rpl_func parameters_and_attributes |
| |
| /* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes); |
| declares the system function, named func, with the given prototype, |
| consisting of return type, parameters, and attributes. |
| Example: |
| _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...) |
| _GL_ARG_NONNULL ((1))); |
| */ |
| #define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \ |
| _GL_EXTERN_C rettype func parameters_and_attributes |
| |
| /* _GL_CXXALIAS_RPL (func, rettype, parameters); |
| 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, ...)); |
| |
| 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) \ |
| _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters) |
| #if defined __cplusplus && defined GNULIB_NAMESPACE |
| # define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \ |
| namespace GNULIB_NAMESPACE \ |
| { \ |
| static const struct _gl_ ## func ## _wrapper \ |
| { \ |
| typedef rettype (*type) parameters; \ |
| \ |
| 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) \ |
| _GL_EXTERN_C int _gl_cxxalias_dummy |
| #endif |
| |
| /* _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_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 !__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 && 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 !__OPTIMIZE__ |
| # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ |
| _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \ |
| "The symbol ::" #func " refers to the system function. " \ |
| "Use " #namespace "::" #func " instead.") |
| # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING |
| # define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \ |
| extern __typeof__ (func) func |
| # 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) 2009-2019 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published |
| by the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <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_MINOR__ >= 3) || __GNUC__ > 3 |
| # 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) 2010-2019 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published |
| by the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <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) \ |
| extern __typeof__ (function) function __attribute__ ((__warning__ (message))) |
| # define _GL_WARN_ON_USE_ATTRIBUTE(message) \ |
| __attribute__ ((__warning__ (message))) |
| # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING |
| /* Verify the existence of the function. */ |
| # define _GL_WARN_ON_USE(function, message) \ |
| extern __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, parameters_and_attributes, "string") |
| is like _GL_WARN_ON_USE (function, "string"), except that 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 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__) |
| # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ |
| extern rettype function parameters_and_attributes \ |
| __attribute__ ((__warning__ (msg))) |
| # elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING |
| /* Verify the existence of the function. */ |
| # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ |
| extern rettype function parameters_and_attributes |
| # else /* Unsupported. */ |
| # define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \ |
| _GL_WARN_EXTERN_C int _gl_warn_on_use |
| # 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)); |
| # 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"); |
| #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, ...)); |
| # else |
| # if !1 |
| _GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...)); |
| # 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, ...)); |
| # 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"); |
| #endif |
| |
| #if 0 |
| # 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 |
| |
| |
| #endif /* _GL_FCNTL_H */ |
| #endif /* _GL_FCNTL_H */ |
| #endif |
