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#ifndef RUBY_BACKWARD2_LONG_LONG_H /*-*-C++-*-vi:se ft=cpp:*/
#define RUBY_BACKWARD2_LONG_LONG_H
/**
* @file
* @author Ruby developers <ruby-core@ruby-lang.org>
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
* @warning Symbols prefixed with either `RBIMPL` or `rbimpl` are
* implementation details. Don't take them as canon. They could
* rapidly appear then vanish. The name (path) of this header file
* is also an implementation detail. Do not expect it to persist
* at the place it is now. Developers are free to move it anywhere
* anytime at will.
* @note To ruby-core: remember that this header can be possibly
* recursively included from extension libraries written in C++.
* Do not expect for instance `__VA_ARGS__` is always available.
* We assume C99 for ruby itself but we don't assume languages of
* extension libraries. They could be written in C++98.
* @brief Defines old #LONG_LONG
*
* No known compiler that can compile today's ruby lacks long long.
* Historically MSVC was one of such compiler, but it implemented long long a
* while ago (some time back in 2013). The macros are for backwards
* compatibility only.
*/
#include "ruby/internal/config.h"
#include "ruby/internal/has/warning.h"
#include "ruby/internal/warning_push.h"
#if RBIMPL_HAS_WARNING("-Wc++11-long-long")
# define HAVE_TRUE_LONG_LONG 1
# define LONG_LONG \
RBIMPL_WARNING_PUSH() \
RBIMPL_WARNING_IGNORED(-Wc++11-long-long) \
long long \
RBIMPL_WARNING_POP()
#elif RBIMPL_HAS_WARNING("-Wlong-long")
# define HAVE_TRUE_LONG_LONG 1
# define LONG_LONG \
RBIMPL_WARNING_PUSH() \
RBIMPL_WARNING_IGNORED(-Wlong-long) \
long long \
RBIMPL_WARNING_POP()
#elif defined(HAVE_LONG_LONG)
# define HAVE_TRUE_LONG_LONG 1
# define LONG_LONG long long
#elif SIZEOF___INT64 > 0
# define HAVE_LONG_LONG 1
# define LONG_LONG __int64
# undef SIZEOF_LONG_LONG
# define SIZEOF_LONG_LONG SIZEOF___INT64
#else
# error Hello! Ruby developers believe this message must not happen.
# error If you encounter this message, can you file a bug report?
# error Remember to attach a detailed description of your environment.
# error Thank you!
#endif
#endif /* RBIMPL_BACKWARD2_LONG_LONG_H */
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