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Diffstat (limited to 'include/ruby/3/arithmetic/short.h')
| -rw-r--r-- | include/ruby/3/arithmetic/short.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/include/ruby/3/arithmetic/short.h b/include/ruby/3/arithmetic/short.h new file mode 100644 index 0000000000..fd2106c216 --- /dev/null +++ b/include/ruby/3/arithmetic/short.h @@ -0,0 +1,54 @@ +/** \noop-*-C++-*-vi:ft=cpp + * @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 `RUBY3` or `ruby3` 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? + */ +#ifndef RUBY3_ARITHMETIC_SHORT_H +#define RUBY3_ARITHMETIC_SHORT_H +#include "ruby/3/value.h" +#include "ruby/3/dllexport.h" +#include "ruby/3/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 + +RUBY3_SYMBOL_EXPORT_BEGIN() +short rb_num2short(VALUE); +unsigned short rb_num2ushort(VALUE); +short rb_fix2short(VALUE); +unsigned short rb_fix2ushort(VALUE); +RUBY3_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 /* RUBY3_ARITHMETIC_SOHRT_H */ |