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based on coreutils-8.32
2020-09-02 16:47:03 +08:00
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
/* A more-standard <time.h>.
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
Copyright (C) 2007-2022 Free Software Foundation, Inc.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
This file 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 2.1 of the
License, or (at your option) any later version.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
This file is distributed in the hope that it will be useful,
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
GNU Lesser General Public License for more details.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
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/>. */
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
#if __GNUC__ >= 3
#pragma GCC system_header
#endif
/* Don't get in the way of glibc when it includes time.h merely to
declare a few standard symbols, rather than to declare all the
symbols. (However, skip this for MinGW as it treats __need_time_t
incompatibly.) Also, Solaris 8 <time.h> eventually includes itself
recursively; if that is happening, just include the system <time.h>
without adding our own declarations. */
#if (((defined __need_time_t || defined __need_clock_t \
|| defined __need_timespec) \
&& !defined __MINGW32__) \
|| defined _GL_TIME_H)
# include_next <time.h>
#else
# define _GL_TIME_H
/* mingw's <time.h> provides the functions asctime_r, ctime_r, gmtime_r,
localtime_r only if <unistd.h> or <pthread.h> has been included before. */
# if defined __MINGW32__
# include <unistd.h>
# endif
# include_next <time.h>
/* NetBSD 5.0 mis-defines NULL. */
# include <stddef.h>
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
/* C++ compatible function declaration macros.
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
Copyright (C) 2010-2022 Free Software Foundation, Inc.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
This program is free software: you can redistribute it and/or modify it
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
(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
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
Lesser General Public License for more details.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
You should have received a copy of the GNU Lesser General Public License
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
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
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* _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)
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
/* _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
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* _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)
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
/* _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. */
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# 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. */
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
coreutils 9.1 version
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_GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
"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.
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
Copyright (C) 2009-2022 Free Software Foundation, Inc.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
This program is free software: you can redistribute it and/or modify it
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
(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
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
Lesser General Public License for more details.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
You should have received a copy of the GNU Lesser General Public License
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
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
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# 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.
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
Copyright (C) 2010-2022 Free Software Foundation, Inc.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
This program is free software: you can redistribute it and/or modify it
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License, or
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
(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
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
Lesser General Public License for more details.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
You should have received a copy of the GNU Lesser General Public License
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
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) \
coreutils 9.1 version
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_GL_WARN_EXTERN_C __typeof__ (function) function __attribute__ ((__warning__ (message)))
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# define _GL_WARN_ON_USE_ATTRIBUTE(message) \
__attribute__ ((__warning__ (message)))
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
# 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")))
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
/* Verify the existence of the function. */
# define _GL_WARN_ON_USE(function, message) \
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
_GL_WARN_EXTERN_C __typeof__ (function) function
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# 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
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* _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.
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
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
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
# 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
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
/* Verify the existence of the function. */
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
# 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) \
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
_GL_WARN_EXTERN_C int _gl_warn_on_use
coreutils 9.1 version
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# endif
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# 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
/* Some systems don't define struct timespec (e.g., AIX 4.1).
Or they define it with the wrong member names or define it in <sys/time.h>
(e.g., FreeBSD circa 1997). Stock Mingw prior to 3.0 does not define it,
but the pthreads-win32 library defines it in <pthread.h>. */
# if ! 1
# if 0
# include <sys/time.h>
# elif 0
# include <pthread.h>
# elif 0
# include <unistd.h>
# else
# ifdef __cplusplus
extern "C" {
# endif
# if !GNULIB_defined_struct_timespec
# undef timespec
# define timespec rpl_timespec
struct timespec
{
time_t tv_sec;
long int tv_nsec;
};
# define GNULIB_defined_struct_timespec 1
# endif
# ifdef __cplusplus
}
# endif
# endif
# endif
# if !GNULIB_defined_struct_time_t_must_be_integral
/* https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_types.h.html
requires time_t to be an integer type, even though C99 permits floating
point. We don't know of any implementation that uses floating
point, and it is much easier to write code that doesn't have to
worry about that corner case, so we force the issue. */
struct __time_t_must_be_integral {
unsigned int __floating_time_t_unsupported : (time_t) 1;
};
# define GNULIB_defined_struct_time_t_must_be_integral 1
# endif
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* Define TIME_UTC, a positive integer constant used for timespec_get(). */
# if ! 1
# if !GNULIB_defined_TIME_UTC
# define TIME_UTC 1
# define GNULIB_defined_TIME_UTC 1
# endif
# endif
/* Set *TS to the current time, and return BASE.
Upon failure, return 0. */
# if 0
# if ! 1
_GL_FUNCDECL_SYS (timespec_get, int, (struct timespec *ts, int base)
_GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (timespec_get, int, (struct timespec *ts, int base));
_GL_CXXALIASWARN (timespec_get);
# endif
/* Set *TS to the current time resolution, and return BASE.
Upon failure, return 0. */
# if 0
# if ! 1
_GL_FUNCDECL_SYS (timespec_getres, int, (struct timespec *ts, int base)
_GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (timespec_getres, int, (struct timespec *ts, int base));
_GL_CXXALIASWARN (timespec_getres);
# endif
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
/* Sleep for at least RQTP seconds unless interrupted, If interrupted,
return -1 and store the remaining time into RMTP. See
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/nanosleep.html>. */
# if 1
# if 1
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# define nanosleep rpl_nanosleep
# endif
_GL_FUNCDECL_RPL (nanosleep, int,
(struct timespec const *__rqtp, struct timespec *__rmtp)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (nanosleep, int,
(struct timespec const *__rqtp, struct timespec *__rmtp));
# else
# if ! 1
_GL_FUNCDECL_SYS (nanosleep, int,
(struct timespec const *__rqtp, struct timespec *__rmtp)
_GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (nanosleep, int,
(struct timespec const *__rqtp, struct timespec *__rmtp));
# endif
_GL_CXXALIASWARN (nanosleep);
# endif
/* Initialize time conversion information. */
# if 1
# if 0
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef tzset
# define tzset rpl_tzset
# endif
_GL_FUNCDECL_RPL (tzset, void, (void));
_GL_CXXALIAS_RPL (tzset, void, (void));
coreutils 9.1 version
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# elif defined _WIN32 && !defined __CYGWIN__
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef tzset
# define tzset _tzset
# endif
_GL_CXXALIAS_MDA (tzset, void, (void));
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# else
coreutils 9.1 version
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_GL_CXXALIAS_SYS (tzset, void, (void));
# endif
_GL_CXXALIASWARN (tzset);
# elif 1
/* On native Windows, map 'tzset' to '_tzset', so that -loldnames is not
required. In C++ with GNULIB_NAMESPACE, avoid differences between
platforms by defining GNULIB_NAMESPACE::tzset always. */
# if defined _WIN32 && !defined __CYGWIN__
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef tzset
# define tzset _tzset
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# endif
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
_GL_CXXALIAS_MDA (tzset, void, (void));
# else
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
_GL_CXXALIAS_SYS (tzset, void, (void));
# endif
_GL_CXXALIASWARN (tzset);
# endif
/* Return the 'time_t' representation of TP and normalize TP. */
# if 1
coreutils 9.1 version
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# if 1
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# define mktime rpl_mktime
# endif
_GL_FUNCDECL_RPL (mktime, time_t, (struct tm *__tp) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (mktime, time_t, (struct tm *__tp));
# else
_GL_CXXALIAS_SYS (mktime, time_t, (struct tm *__tp));
# endif
# if __GLIBC__ >= 2
_GL_CXXALIASWARN (mktime);
# endif
# endif
/* Convert TIMER to RESULT, assuming local time and UTC respectively. See
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/localtime_r.html> and
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/gmtime_r.html>. */
# if 1
# if 0
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef localtime_r
# define localtime_r rpl_localtime_r
# endif
_GL_FUNCDECL_RPL (localtime_r, struct tm *, (time_t const *restrict __timer,
struct tm *restrict __result)
_GL_ARG_NONNULL ((1, 2)));
_GL_CXXALIAS_RPL (localtime_r, struct tm *, (time_t const *restrict __timer,
struct tm *restrict __result));
# else
# if ! 1
_GL_FUNCDECL_SYS (localtime_r, struct tm *, (time_t const *restrict __timer,
struct tm *restrict __result)
_GL_ARG_NONNULL ((1, 2)));
# endif
_GL_CXXALIAS_SYS (localtime_r, struct tm *, (time_t const *restrict __timer,
struct tm *restrict __result));
# endif
# if 1
_GL_CXXALIASWARN (localtime_r);
# endif
# if 0
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef gmtime_r
# define gmtime_r rpl_gmtime_r
# endif
_GL_FUNCDECL_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer,
struct tm *restrict __result)
_GL_ARG_NONNULL ((1, 2)));
_GL_CXXALIAS_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer,
struct tm *restrict __result));
# else
# if ! 1
_GL_FUNCDECL_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer,
struct tm *restrict __result)
_GL_ARG_NONNULL ((1, 2)));
# endif
_GL_CXXALIAS_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer,
struct tm *restrict __result));
# endif
# if 1
_GL_CXXALIASWARN (gmtime_r);
# endif
# endif
/* Convert TIMER to RESULT, assuming local time and UTC respectively. See
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/localtime.html> and
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/gmtime.html>. */
# if 0 || 0
# if 0
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef localtime
# define localtime rpl_localtime
# endif
_GL_FUNCDECL_RPL (localtime, struct tm *, (time_t const *__timer)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (localtime, struct tm *, (time_t const *__timer));
# else
_GL_CXXALIAS_SYS (localtime, struct tm *, (time_t const *__timer));
# endif
# if __GLIBC__ >= 2
_GL_CXXALIASWARN (localtime);
# endif
# endif
# if 0 || 0
# if 0
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef gmtime
# define gmtime rpl_gmtime
# endif
_GL_FUNCDECL_RPL (gmtime, struct tm *, (time_t const *__timer)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (gmtime, struct tm *, (time_t const *__timer));
# else
_GL_CXXALIAS_SYS (gmtime, struct tm *, (time_t const *__timer));
# endif
_GL_CXXALIASWARN (gmtime);
# endif
/* Parse BUF as a timestamp, assuming FORMAT specifies its layout, and store
the resulting broken-down time into TM. See
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html>. */
# if 0
# if ! 1
_GL_FUNCDECL_SYS (strptime, char *, (char const *restrict __buf,
char const *restrict __format,
struct tm *restrict __tm)
_GL_ARG_NONNULL ((1, 2, 3)));
# endif
_GL_CXXALIAS_SYS (strptime, char *, (char const *restrict __buf,
char const *restrict __format,
struct tm *restrict __tm));
_GL_CXXALIASWARN (strptime);
# endif
/* Convert *TP to a date and time string. See
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/ctime.html>. */
# if 0
# if GNULIB_PORTCHECK
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# define ctime rpl_ctime
# endif
_GL_FUNCDECL_RPL (ctime, char *, (time_t const *__tp)
_GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (ctime, char *, (time_t const *__tp));
# else
_GL_CXXALIAS_SYS (ctime, char *, (time_t const *__tp));
# endif
# if __GLIBC__ >= 2
_GL_CXXALIASWARN (ctime);
# endif
# endif
/* Convert *TP to a date and time string. See
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/strftime.html>. */
# if 0
# if GNULIB_PORTCHECK
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# define strftime rpl_strftime
# endif
_GL_FUNCDECL_RPL (strftime, size_t,
(char *restrict __buf, size_t __bufsize,
const char *restrict __fmt, const struct tm *restrict __tp)
_GL_ARG_NONNULL ((1, 3, 4)));
_GL_CXXALIAS_RPL (strftime, size_t,
(char *restrict __buf, size_t __bufsize,
const char *restrict __fmt, const struct tm *restrict __tp));
# else
_GL_CXXALIAS_SYS (strftime, size_t,
(char *restrict __buf, size_t __bufsize,
const char *restrict __fmt, const struct tm *restrict __tp));
# endif
# if __GLIBC__ >= 2
_GL_CXXALIASWARN (strftime);
# endif
# endif
# if defined _GNU_SOURCE && 1 && ! 0
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* Functions that use a first-class time zone data type, instead of
relying on an implicit global time zone.
Inspired by NetBSD. */
/* Represents a time zone.
(timezone_t) NULL stands for UTC. */
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
typedef struct tm_zone *timezone_t;
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* tzalloc (name)
Returns a time zone object for the given time zone NAME. This object
represents the time zone that other functions would use it the TZ
environment variable was set to NAME.
If NAME is NULL, the result represents the time zone that other functions
would use it the TZ environment variable was unset.
May return NULL if NAME is invalid (this is platform dependent) or
upon memory allocation failure. */
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
_GL_FUNCDECL_SYS (tzalloc, timezone_t, (char const *__name));
_GL_CXXALIAS_SYS (tzalloc, timezone_t, (char const *__name));
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* tzfree (tz)
Frees a time zone object.
The argument must have been returned by tzalloc(). */
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
_GL_FUNCDECL_SYS (tzfree, void, (timezone_t __tz));
_GL_CXXALIAS_SYS (tzfree, void, (timezone_t __tz));
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* localtime_rz (tz, &t, &result)
Converts an absolute time T to a broken-down time RESULT, assuming the
time zone TZ.
This function is like 'localtime_r', but relies on the argument TZ instead
of an implicit global time zone. */
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
_GL_FUNCDECL_SYS (localtime_rz, struct tm *,
(timezone_t __tz, time_t const *restrict __timer,
struct tm *restrict __result) _GL_ARG_NONNULL ((2, 3)));
_GL_CXXALIAS_SYS (localtime_rz, struct tm *,
(timezone_t __tz, time_t const *restrict __timer,
struct tm *restrict __result));
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
/* mktime_z (tz, &tm)
Normalizes the broken-down time TM and converts it to an absolute time,
assuming the time zone TZ. Returns the absolute time.
This function is like 'mktime', but relies on the argument TZ instead
of an implicit global time zone. */
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
_GL_FUNCDECL_SYS (mktime_z, time_t,
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
(timezone_t __tz, struct tm *restrict __tm)
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
_GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_SYS (mktime_z, time_t,
coreutils 9.1 version
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(timezone_t __tz, struct tm *restrict __tm));
/* Time zone abbreviation strings (returned by 'localtime_rz' or 'mktime_z'
in the 'tm_zone' member of 'struct tm') are valid as long as
- the 'struct tm' argument is not destroyed or overwritten,
and
- the 'timezone_t' argument is not freed through tzfree(). */
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# endif
/* Convert TM to a time_t value, assuming UTC. */
# if 1
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
# if 1
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
# undef timegm
# define timegm rpl_timegm
# endif
_GL_FUNCDECL_RPL (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (timegm, time_t, (struct tm *__tm));
# else
# if ! 1
_GL_FUNCDECL_SYS (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1)));
# endif
_GL_CXXALIAS_SYS (timegm, time_t, (struct tm *__tm));
# endif
_GL_CXXALIASWARN (timegm);
# endif
/* Encourage applications to avoid unsafe functions that can overrun
buffers when given outlandish struct tm values. Portable
applications should use strftime (or even sprintf) instead. */
# if defined GNULIB_POSIXCHECK
# undef asctime
_GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - "
"better use strftime (or even sprintf) instead");
# endif
# if defined GNULIB_POSIXCHECK
# undef asctime_r
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
_GL_WARN_ON_USE (asctime_r, "asctime_r can overrun buffers in some cases - "
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
"better use strftime (or even sprintf) instead");
# endif
# if defined GNULIB_POSIXCHECK
# undef ctime
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
_GL_WARN_ON_USE (ctime, "ctime can overrun buffers in some cases - "
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
"better use strftime (or even sprintf) instead");
# endif
# if defined GNULIB_POSIXCHECK
# undef ctime_r
coreutils 9.1 version
2022-07-28 14:16:50 +08:00
_GL_WARN_ON_USE (ctime_r, "ctime_r can overrun buffers in some cases - "
based on coreutils-8.32
2020-09-02 16:47:03 +08:00
"better use strftime (or even sprintf) instead");
# endif
#endif
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