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443389effc
Without this patch, 20k files are opened (openat syscall) because of duplicate includes. This patch reduced it to 3k and build time was reduced compile time of range.o from 15sec -> 3sec on my machine. [Bug #16772]
62 lines
2.6 KiB
C++
62 lines
2.6 KiB
C++
/** \noop-*-C++-*-vi:ft=cpp
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* @file
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* @author Ruby developers <ruby-core@ruby-lang.org>
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* @copyright This file is a part of the programming language Ruby.
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* Permission is hereby granted, to either redistribute and/or
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* modify this file, provided that the conditions mentioned in the
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* file COPYING are met. Consult the file for details.
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* @warning Symbols prefixed with either `RUBY3` or `ruby3` are
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* implementation details. Don't take them as canon. They could
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* rapidly appear then vanish. The name (path) of this header file
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* is also an implementation detail. Do not expect it to persist
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* at the place it is now. Developers are free to move it anywhere
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* anytime at will.
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* @note To ruby-core: remember that this header can be possibly
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* recursively included from extension libraries written in C++.
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* Do not expect for instance `__VA_ARGS__` is always available.
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* We assume C99 for ruby itself but we don't assume languages of
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* extension libraries. They could be written in C++98.
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* @brief Defines old #LONG_LONG
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*
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* No known compiler that can compile today's ruby lacks long long.
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* Historically MSVC was one of such compiler, but it implemented long long a
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* while ago (some time back in 2013). The macros are for backwards
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* compatibility only.
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*/
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#include "ruby/3/config.h"
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#if defined(LONG_LONG)
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# /* Take that. */
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#elif RUBY3_HAS_WARNING("-Wc++11-long-long")
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# define HAVE_TRUE_LONG_LONG 1
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# define LONG_LONG \
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RUBY3_WARNING_PUSH() \
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RUBY3_WARNING_IGNORED(-Wc++11-long-long) \
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long long \
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RUBY3_WARNING_POP()
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#elif RUBY3_HAS_WARNING("-Wlong-long")
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# define HAVE_TRUE_LONG_LONG 1
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# define LONG_LONG \
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RUBY3_WARNING_PUSH() \
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RUBY3_WARNING_IGNORED(-Wlong-long) \
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long long \
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RUBY3_WARNING_POP()
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#elif defined(HAVE_LONG_LONG)
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# define HAVE_TRUE_LONG_LONG 1
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# define LONG_LONG long long
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#elif SIZEOF___INT64 > 0
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# define HAVE_LONG_LONG 1
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# define LONG_LONG __int64
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# undef SIZEOF_LONG_LONG
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# define SIZEOF_LONG_LONG SIZEOF___INT64
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#else
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# error Hello! Ruby developers believe this message must not happen.
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# error If you encounter this message, can you file a bug report?
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# error Remember to attach a detailed description of your environment.
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# error Thank you!
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#endif
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