зеркало из https://github.com/github/ruby.git
55 строки
1.3 KiB
C
55 строки
1.3 KiB
C
#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
|
|
big2str_generic(VALUE x, VALUE vbase)
|
|
{
|
|
int base = NUM2INT(vbase);
|
|
if (base < 2 || 36 < base)
|
|
rb_raise(rb_eArgError, "invalid radix %d", base);
|
|
return rb_big2str_generic(big(x), base);
|
|
}
|
|
|
|
#define POW2_P(x) (((x)&((x)-1))==0)
|
|
|
|
static VALUE
|
|
big2str_poweroftwo(VALUE x, VALUE vbase)
|
|
{
|
|
int base = NUM2INT(vbase);
|
|
if (base < 2 || 36 < base || !POW2_P(base))
|
|
rb_raise(rb_eArgError, "invalid radix %d", base);
|
|
return rb_big2str_poweroftwo(big(x), base);
|
|
}
|
|
|
|
#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
|
|
static VALUE
|
|
big2str_gmp(VALUE x, VALUE vbase)
|
|
{
|
|
int base = NUM2INT(vbase);
|
|
if (base < 2 || 36 < base)
|
|
rb_raise(rb_eArgError, "invalid radix %d", base);
|
|
return rb_big2str_gmp(big(x), base);
|
|
}
|
|
#else
|
|
#define big2str_gmp rb_f_notimplement
|
|
#endif
|
|
|
|
void
|
|
Init_big2str(VALUE klass)
|
|
{
|
|
rb_define_method(rb_cInteger, "big2str_generic", big2str_generic, 1);
|
|
rb_define_method(rb_cInteger, "big2str_poweroftwo", big2str_poweroftwo, 1);
|
|
rb_define_method(rb_cInteger, "big2str_gmp", big2str_gmp, 1);
|
|
}
|