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45 lines
1.9 KiB
C++
45 lines
1.9 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 Arithmetic conversion between C's `off_t` and Ruby's.
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*/
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#include "ruby/3/config.h"
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#include "ruby/3/arithmetic/int.h"
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#include "ruby/3/arithmetic/long.h"
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#include "ruby/3/arithmetic/long_long.h"
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#include "ruby/backward/2/long_long.h"
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#ifdef OFFT2NUM
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# /* take that. */
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#elif SIZEOF_OFF_T == SIZEOF_LONG_LONG
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# define OFFT2NUM RB_LL2NUM
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#elif SIZEOF_OFF_T == SIZEOF_LONG
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# define OFFT2NUM RB_LONG2NUM
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#else
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# define OFFT2NUM RB_INT2NUM
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#endif
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#ifdef NUM2OFFT
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# /* take that. */
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#elif SIZEOF_OFF_T == SIZEOF_LONG_LONG
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# define NUM2OFFT RB_NUM2LL
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#elif SIZEOF_OFF_T == SIZEOF_LONG
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# define NUM2OFFT RB_NUM2LONG
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#else
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# define NUM2OFFT RB_NUM2INT
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#endif
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