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48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
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#ifndef INTERNAL_RATIONAL_H /* -*- C -*- */
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#define INTERNAL_RATIONAL_H
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/**
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* @file
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* @brief Internal header for Rational.
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* @author \@shyouhei
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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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*/
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struct RRational {
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struct RBasic basic;
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VALUE num;
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VALUE den;
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};
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#define RRATIONAL(obj) (R_CAST(RRational)(obj))
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#define RRATIONAL_SET_NUM(rat, n) RB_OBJ_WRITE((rat), &((struct RRational *)(rat))->num,(n))
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#define RRATIONAL_SET_DEN(rat, d) RB_OBJ_WRITE((rat), &((struct RRational *)(rat))->den,(d))
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/* rational.c */
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VALUE rb_rational_canonicalize(VALUE x);
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VALUE rb_rational_uminus(VALUE self);
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VALUE rb_rational_plus(VALUE self, VALUE other);
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VALUE rb_rational_mul(VALUE self, VALUE other);
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VALUE rb_lcm(VALUE x, VALUE y);
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VALUE rb_rational_reciprocal(VALUE x);
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VALUE rb_cstr_to_rat(const char *, int);
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VALUE rb_rational_abs(VALUE self);
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VALUE rb_rational_cmp(VALUE self, VALUE other);
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VALUE rb_rational_pow(VALUE self, VALUE other);
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VALUE rb_numeric_quo(VALUE x, VALUE y);
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VALUE rb_float_numerator(VALUE x);
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VALUE rb_float_denominator(VALUE x);
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RUBY_SYMBOL_EXPORT_BEGIN
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/* rational.c (export) */
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VALUE rb_gcd(VALUE x, VALUE y);
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VALUE rb_gcd_normal(VALUE self, VALUE other);
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#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
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VALUE rb_gcd_gmp(VALUE x, VALUE y);
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#endif
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RUBY_SYMBOL_EXPORT_END
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#endif /* INTERNAL_RATIONAL_H */
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