diff options
| author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-07-07 14:01:40 +0000 |
|---|---|---|
| committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-07-07 14:01:40 +0000 |
| commit | 29634bca310c32b8f8dacd6e9bd8304388b30d17 (patch) | |
| tree | a302efcad36156493f8e4c51fcde940fe4c20db7 /ext/-test- | |
| parent | d7c2f3f8a412b64880fa07b65faabe2b56543290 (diff) | |
* internal.h (rb_big_mul_normal): Declared.
(rb_big_mul_balance): Ditto.
(rb_big_mul_karatsuba): Ditto.
* bignum.c (rb_big_mul_normal): New function for tests.
(rb_big_mul_balance): Ditto.
(rb_big_mul_karatsuba): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41824 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/-test-')
| -rw-r--r-- | ext/-test-/bignum/depend | 1 | ||||
| -rw-r--r-- | ext/-test-/bignum/mul.c | 41 |
2 files changed, 42 insertions, 0 deletions
diff --git a/ext/-test-/bignum/depend b/ext/-test-/bignum/depend index 8524e41ce6..c8ddefb6fb 100644 --- a/ext/-test-/bignum/depend +++ b/ext/-test-/bignum/depend @@ -1,3 +1,4 @@ $(OBJS): $(HDRS) $(ruby_headers) pack.o: pack.c $(top_srcdir)/internal.h +mul.o: mul.c $(top_srcdir)/internal.h diff --git a/ext/-test-/bignum/mul.c b/ext/-test-/bignum/mul.c new file mode 100644 index 0000000000..18ab3f7633 --- /dev/null +++ b/ext/-test-/bignum/mul.c @@ -0,0 +1,41 @@ +#include "ruby.h" +#include "internal.h" + +static VALUE +big(VALUE x) +{ + if (FIXNUM_P(x)) + return rb_int2big(FIX2LONG(x)); + if (RB_TYPE_P(x, T_BIGNUM)) + return x; + rb_raise(rb_eTypeError, "can't convert %s to Bignum", + rb_obj_classname(x)); +} + +static VALUE +mul_normal(VALUE x, VALUE y) +{ + return rb_big_norm(rb_big_mul_normal(big(x), big(y))); +} + +static VALUE +mul_balance(VALUE x, VALUE y) +{ + return rb_big_norm(rb_big_mul_balance(big(x), big(y))); +} + +static VALUE +mul_karatsuba(VALUE x, VALUE y) +{ + return rb_big_norm(rb_big_mul_karatsuba(big(x), big(y))); +} + +void +Init_mul(VALUE klass) +{ + rb_define_const(rb_cBignum, "SIZEOF_BDIGITS", INT2NUM(SIZEOF_BDIGITS)); + rb_define_const(rb_cBignum, "BITSPERDIG", INT2NUM(SIZEOF_BDIGITS * CHAR_BIT)); + rb_define_method(rb_cInteger, "big_mul_normal", mul_normal, 1); + rb_define_method(rb_cInteger, "big_mul_balance", mul_balance, 1); + rb_define_method(rb_cInteger, "big_mul_karatsuba", mul_karatsuba, 1); +} |