960 lines
39 KiB
C++
960 lines
39 KiB
C++
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
|
|
/* A more-standard <time.h>.
|
|
|
|
Copyright (C) 2007-2022 Free Software Foundation, Inc.
|
|
|
|
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.
|
|
|
|
This file 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/>. */
|
|
|
|
#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.
|
|
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/>. */
|
|
|
|
#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_MDA (func, rettype, parameters);
|
|
is to be used when func is a Microsoft deprecated alias, on native Windows.
|
|
It declares a C++ alias called GNULIB_NAMESPACE::func
|
|
that redirects to _func, if GNULIB_NAMESPACE is defined.
|
|
Example:
|
|
_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...));
|
|
*/
|
|
#define _GL_CXXALIAS_MDA(func,rettype,parameters) \
|
|
_GL_CXXALIAS_RPL_1 (func, _##func, rettype, parameters)
|
|
|
|
/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
|
|
is like _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
|
|
except that the C function rpl_func may have a slightly different
|
|
declaration. A cast is used to silence the "invalid conversion" error
|
|
that would otherwise occur. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
|
|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
|
|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return reinterpret_cast<type>(::rpl_func); \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters);
|
|
is like _GL_CXXALIAS_MDA (func, rettype, parameters);
|
|
except that the C function func may have a slightly different declaration.
|
|
A cast is used to silence the "invalid conversion" error that would
|
|
otherwise occur. */
|
|
#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \
|
|
_GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters)
|
|
|
|
/* _GL_CXXALIAS_SYS (func, rettype, parameters);
|
|
declares a C++ alias called GNULIB_NAMESPACE::func
|
|
that redirects to the system provided function func, if GNULIB_NAMESPACE
|
|
is defined.
|
|
Example:
|
|
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
|
|
|
|
Wrapping func in an object with an inline conversion operator
|
|
avoids a reference to func unless GNULIB_NAMESPACE::func is
|
|
actually used in the program. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
|
|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
|
|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return ::func; \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
|
|
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
|
|
except that the C function func may have a slightly different declaration.
|
|
A cast is used to silence the "invalid conversion" error that would
|
|
otherwise occur. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
|
|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
|
|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return reinterpret_cast<type>(::func); \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
|
|
is like _GL_CXXALIAS_SYS (func, rettype, parameters);
|
|
except that the C function is picked among a set of overloaded functions,
|
|
namely the one with rettype2 and parameters2. Two consecutive casts
|
|
are used to silence the "cannot find a match" and "invalid conversion"
|
|
errors that would otherwise occur. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
/* The outer cast must be a reinterpret_cast.
|
|
The inner cast: When the function is defined as a set of overloaded
|
|
functions, it works as a static_cast<>, choosing the designated variant.
|
|
When the function is defined as a single variant, it works as a
|
|
reinterpret_cast<>. The parenthesized cast syntax works both ways. */
|
|
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
|
|
namespace GNULIB_NAMESPACE \
|
|
{ \
|
|
static const struct _gl_ ## func ## _wrapper \
|
|
{ \
|
|
typedef rettype (*type) parameters; \
|
|
\
|
|
inline operator type () const \
|
|
{ \
|
|
return reinterpret_cast<type>((rettype2 (*) parameters2)(::func)); \
|
|
} \
|
|
} func = {}; \
|
|
} \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#else
|
|
# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIASWARN (func);
|
|
causes a warning to be emitted when ::func is used but not when
|
|
GNULIB_NAMESPACE::func is used. func must be defined without overloaded
|
|
variants. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIASWARN(func) \
|
|
_GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
|
|
# define _GL_CXXALIASWARN_1(func,namespace) \
|
|
_GL_CXXALIASWARN_2 (func, namespace)
|
|
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
|
|
we enable the warning only when not optimizing. */
|
|
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
|
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
|
_GL_WARN_ON_USE (func, \
|
|
"The symbol ::" #func " refers to the system function. " \
|
|
"Use " #namespace "::" #func " instead.")
|
|
# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
|
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
|
extern __typeof__ (func) func
|
|
# else
|
|
# define _GL_CXXALIASWARN_2(func,namespace) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
# endif
|
|
#else
|
|
# define _GL_CXXALIASWARN(func) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
|
|
causes a warning to be emitted when the given overloaded variant of ::func
|
|
is used but not when GNULIB_NAMESPACE::func is used. */
|
|
#if defined __cplusplus && defined GNULIB_NAMESPACE
|
|
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
|
|
_GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
|
|
GNULIB_NAMESPACE)
|
|
# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
|
|
_GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
|
|
/* To work around GCC bug <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
|
|
we enable the warning only when not optimizing. */
|
|
# if !(defined __GNUC__ && !defined __clang__ && __OPTIMIZE__)
|
|
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
|
|
_GL_WARN_ON_USE_CXX (func, rettype, rettype, parameters_and_attributes, \
|
|
"The symbol ::" #func " refers to the system function. " \
|
|
"Use " #namespace "::" #func " instead.")
|
|
# else
|
|
# define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
# endif
|
|
#else
|
|
# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
|
|
_GL_EXTERN_C int _gl_cxxalias_dummy
|
|
#endif
|
|
|
|
#endif /* _GL_CXXDEFS_H */
|
|
|
|
/* The definition of _GL_ARG_NONNULL is copied here. */
|
|
/* A C macro for declaring that specific arguments must not be NULL.
|
|
Copyright (C) 2009-2022 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_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
|
|
that the values passed as arguments n, ..., m must be non-NULL pointers.
|
|
n = 1 stands for the first argument, n = 2 for the second argument etc. */
|
|
#ifndef _GL_ARG_NONNULL
|
|
# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
|
|
# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
|
|
# else
|
|
# define _GL_ARG_NONNULL(params)
|
|
# endif
|
|
#endif
|
|
|
|
/* The definition of _GL_WARN_ON_USE is copied here. */
|
|
/* A C macro for emitting warnings if a function is used.
|
|
Copyright (C) 2010-2022 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
|
|
|
|
/* 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
|
|
|
|
/* 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
|
|
|
|
/* 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));
|
|
# elif defined _WIN32 && !defined __CYGWIN__
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
|
# undef tzset
|
|
# define tzset _tzset
|
|
# endif
|
|
_GL_CXXALIAS_MDA (tzset, void, (void));
|
|
# else
|
|
_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
|
|
# endif
|
|
_GL_CXXALIAS_MDA (tzset, void, (void));
|
|
# else
|
|
_GL_CXXALIAS_SYS (tzset, void, (void));
|
|
# endif
|
|
_GL_CXXALIASWARN (tzset);
|
|
# endif
|
|
|
|
/* Return the 'time_t' representation of TP and normalize TP. */
|
|
# if 1
|
|
# if 1
|
|
# 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
|
|
/* 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. */
|
|
typedef struct tm_zone *timezone_t;
|
|
|
|
/* 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. */
|
|
_GL_FUNCDECL_SYS (tzalloc, timezone_t, (char const *__name));
|
|
_GL_CXXALIAS_SYS (tzalloc, timezone_t, (char const *__name));
|
|
|
|
/* tzfree (tz)
|
|
Frees a time zone object.
|
|
The argument must have been returned by tzalloc(). */
|
|
_GL_FUNCDECL_SYS (tzfree, void, (timezone_t __tz));
|
|
_GL_CXXALIAS_SYS (tzfree, void, (timezone_t __tz));
|
|
|
|
/* 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. */
|
|
_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));
|
|
|
|
/* 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. */
|
|
_GL_FUNCDECL_SYS (mktime_z, time_t,
|
|
(timezone_t __tz, struct tm *restrict __tm)
|
|
_GL_ARG_NONNULL ((2)));
|
|
_GL_CXXALIAS_SYS (mktime_z, time_t,
|
|
(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(). */
|
|
|
|
# endif
|
|
|
|
/* Convert TM to a time_t value, assuming UTC. */
|
|
# if 1
|
|
# if 1
|
|
# 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
|
|
_GL_WARN_ON_USE (asctime_r, "asctime_r can overrun buffers in some cases - "
|
|
"better use strftime (or even sprintf) instead");
|
|
# endif
|
|
# if defined GNULIB_POSIXCHECK
|
|
# undef ctime
|
|
_GL_WARN_ON_USE (ctime, "ctime can overrun buffers in some cases - "
|
|
"better use strftime (or even sprintf) instead");
|
|
# endif
|
|
# if defined GNULIB_POSIXCHECK
|
|
# undef ctime_r
|
|
_GL_WARN_ON_USE (ctime_r, "ctime_r can overrun buffers in some cases - "
|
|
"better use strftime (or even sprintf) instead");
|
|
# endif
|
|
|
|
#endif
|