#ifndef RBIMPL_ARITHMETIC_SHORT_H /*-*-C++-*-vi:se ft=cpp:*/ #define RBIMPL_ARITHMETIC_SHORT_H /** * @file * @author Ruby developers * @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 `short` and Ruby's. * * Shyouhei wonders: why there is no SHORT2NUM, given there are both * #USHORT2NUM and #CHR2FIX? */ #include "ruby/internal/value.h" #include "ruby/internal/dllexport.h" #include "ruby/internal/special_consts.h" #define RB_NUM2SHORT rb_num2short_inline #define RB_NUM2USHORT rb_num2ushort #define NUM2SHORT RB_NUM2SHORT #define NUM2USHORT RB_NUM2USHORT #define USHORT2NUM RB_INT2FIX #define RB_FIX2SHORT rb_fix2short #define FIX2SHORT RB_FIX2SHORT RBIMPL_SYMBOL_EXPORT_BEGIN() short rb_num2short(VALUE); unsigned short rb_num2ushort(VALUE); short rb_fix2short(VALUE); unsigned short rb_fix2ushort(VALUE); RBIMPL_SYMBOL_EXPORT_END() static inline short rb_num2short_inline(VALUE x) { if (RB_FIXNUM_P(x)) return rb_fix2short(x); else return rb_num2short(x); } #endif /* RBIMPL_ARITHMETIC_SOHRT_H */