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#ifndef INTERNAL_RATIONAL_H /* -*- C -*- */
#define INTERNAL_RATIONAL_H
/**
* @file
* @brief Internal header for Rational.
* @author \@shyouhei
* @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.
*/
#include "ruby/config.h" /* for HAVE_LIBGMP */
#include "ruby/ruby.h" /* for struct RBasic */
#include "internal/gc.h" /* for RB_OBJ_WRITE */
struct RRational {
struct RBasic basic;
VALUE num;
VALUE den;
};
#define RRATIONAL(obj) (R_CAST(RRational)(obj))
/* rational.c */
VALUE rb_rational_canonicalize(VALUE x);
VALUE rb_rational_uminus(VALUE self);
VALUE rb_rational_plus(VALUE self, VALUE other);
VALUE rb_rational_mul(VALUE self, VALUE other);
VALUE rb_lcm(VALUE x, VALUE y);
VALUE rb_rational_reciprocal(VALUE x);
VALUE rb_cstr_to_rat(const char *, int);
VALUE rb_rational_abs(VALUE self);
VALUE rb_rational_cmp(VALUE self, VALUE other);
VALUE rb_rational_pow(VALUE self, VALUE other);
VALUE rb_numeric_quo(VALUE x, VALUE y);
VALUE rb_float_numerator(VALUE x);
VALUE rb_float_denominator(VALUE x);
static inline void RATIONAL_SET_NUM(VALUE r, VALUE n);
static inline void RATIONAL_SET_DEN(VALUE r, VALUE d);
RUBY_SYMBOL_EXPORT_BEGIN
/* rational.c (export) */
VALUE rb_gcd(VALUE x, VALUE y);
VALUE rb_gcd_normal(VALUE self, VALUE other);
#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
VALUE rb_gcd_gmp(VALUE x, VALUE y);
#endif
RUBY_SYMBOL_EXPORT_END
static inline void
RATIONAL_SET_NUM(VALUE r, VALUE n)
{
RB_OBJ_WRITE(r, &RRATIONAL(r)->num, n);
}
static inline void
RATIONAL_SET_DEN(VALUE r, VALUE d)
{
RB_OBJ_WRITE(r, &RRATIONAL(r)->den, d);
}
#endif /* INTERNAL_RATIONAL_H */
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