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#ifndef RBIMPL_ARITHMETIC_OFF_T_H /*-*-C++-*-vi:se ft=cpp:*/
#define RBIMPL_ARITHMETIC_OFF_T_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 Arithmetic conversion between C's `off_t` and Ruby's.
*/
#include "ruby/internal/config.h"
#include "ruby/internal/arithmetic/int.h"
#include "ruby/internal/arithmetic/long.h"
#include "ruby/internal/arithmetic/long_long.h"
#include "ruby/backward/2/long_long.h"
/** Converts a C's `off_t` into an instance of ::rb_cInteger. */
#ifdef OFFT2NUM
# /* take that. */
#elif SIZEOF_OFF_T == SIZEOF_LONG_LONG
# define OFFT2NUM RB_LL2NUM
#elif SIZEOF_OFF_T == SIZEOF_LONG
# define OFFT2NUM RB_LONG2NUM
#else
# define OFFT2NUM RB_INT2NUM
#endif
/** Converts an instance of ::rb_cNumeric into C's `off_t`. */
#ifdef NUM2OFFT
# /* take that. */
#elif SIZEOF_OFF_T == SIZEOF_LONG_LONG
# define NUM2OFFT RB_NUM2LL
#elif SIZEOF_OFF_T == SIZEOF_LONG
# define NUM2OFFT RB_NUM2LONG
#else
# define NUM2OFFT RB_NUM2INT
#endif
/** A rb_sprintf() format prefix to be used for an `off_t` parameter. */
#ifdef PRI_OFFT_PREFIX
# /* take that. */
#elif SIZEOF_OFF_T == SIZEOF_LONG_LONG
# define PRI_OFFT_PREFIX PRI_LL_PREFIX
#elif SIZEOF_OFF_T == SIZEOF_LONG
# define PRI_OFFT_PREFIX PRI_LONG_PREFIX
#else
# define PRI_OFFT_PREFIX PRI_INT_PREFIX
#endif
#endif /* RBIMPL_ARITHMETIC_OFF_T_H */