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6fdad008a2
(rb_big_mul_toom3): Ditto. * internal.h (rb_big_sq_fast): Declared. (rb_big_mul_toom3): Ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41832 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
#include "ruby.h"
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#include "internal.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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static VALUE
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mul_normal(VALUE x, VALUE y)
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{
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return rb_big_norm(rb_big_mul_normal(big(x), big(y)));
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}
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static VALUE
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sq_fast(VALUE x)
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{
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return rb_big_norm(rb_big_sq_fast(big(x)));
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}
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static VALUE
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mul_balance(VALUE x, VALUE y)
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{
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return rb_big_norm(rb_big_mul_balance(big(x), big(y)));
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}
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static VALUE
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mul_karatsuba(VALUE x, VALUE y)
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{
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return rb_big_norm(rb_big_mul_karatsuba(big(x), big(y)));
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}
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static VALUE
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mul_toom3(VALUE x, VALUE y)
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{
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return rb_big_norm(rb_big_mul_toom3(big(x), big(y)));
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}
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void
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Init_mul(VALUE klass)
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{
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rb_define_const(rb_cBignum, "SIZEOF_BDIGITS", INT2NUM(SIZEOF_BDIGITS));
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rb_define_const(rb_cBignum, "BITSPERDIG", INT2NUM(SIZEOF_BDIGITS * CHAR_BIT));
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rb_define_method(rb_cInteger, "big_mul_normal", mul_normal, 1);
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rb_define_method(rb_cInteger, "big_sq_fast", sq_fast, 0);
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rb_define_method(rb_cInteger, "big_mul_balance", mul_balance, 1);
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rb_define_method(rb_cInteger, "big_mul_karatsuba", mul_karatsuba, 1);
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rb_define_method(rb_cInteger, "big_mul_toom3", mul_toom3, 1);
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}
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