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48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#include "internal/rational.h"
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#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
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static VALUE
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big(VALUE x)
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{
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if (FIXNUM_P(x))
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return rb_int2big(FIX2LONG(x));
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if (RB_TYPE_P(x, T_BIGNUM))
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return x;
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rb_raise(rb_eTypeError, "can't convert %s to Bignum",
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rb_obj_classname(x));
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}
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#endif
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static VALUE
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gcd_normal(VALUE klass, VALUE x, VALUE y)
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{
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return rb_big_norm(rb_gcd_normal(rb_to_int(x), rb_to_int(y)));
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}
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#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
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static VALUE
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gcd_gmp(VALUE klass, VALUE x, VALUE y)
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{
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return rb_big_norm(rb_gcd_gmp(big(x), big(y)));
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}
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#else
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#define gcd_gmp rb_f_notimplement
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#endif
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static VALUE
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s_rational_raw(VALUE klass, VALUE x, VALUE y)
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{
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return rb_rational_raw(x, y);
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}
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void
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Init_rational(void)
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{
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VALUE mBug = rb_define_module("Bug");
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VALUE klass = rb_define_module_under(mBug, "Rational");
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rb_define_singleton_method(klass, "gcd_normal", gcd_normal, 2);
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rb_define_singleton_method(klass, "gcd_gmp", gcd_gmp, 2);
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rb_define_singleton_method(klass, "raw", s_rational_raw, 2);
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}
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