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* bignum.c (BIGSIZE): New macro.

Browse source 
(bigfixize): Use BIGSIZE.
  (big2ulong): Ditto.
  (check_shiftdown): Ditto.
  (rb_big_aref): Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41461 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2013-06-19 23:09:05 +00:00
parent 88927b04ae
commit e98b7c6c52
2 changed files with 16 additions and 4 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
Thu Jun 20 08:07:23 2013 Tanaka Akira <akr@fsij.org>
* bignum.c (BIGSIZE): New macro.
(bigfixize): Use BIGSIZE.
(big2ulong): Ditto.
(check_shiftdown): Ditto.
(rb_big_aref): Ditto.
Thu Jun 20 07:46:48 2013 Masaya Tarui <tarui@ruby-lang.org>
* gc.c (rb_gc_writebarrier): give up rescan A and register B directly

12
bignum.c
View file

@ -51,6 +51,10 @@ static VALUE big_three = Qnil;
#define BIGZEROP(x) (RBIGNUM_LEN(x) == 0 || \
(BDIGITS(x)[0] == 0 && \
(RBIGNUM_LEN(x) == 1 || bigzero_p(x))))
#define BIGSIZE(x) (RBIGNUM_LEN(x) == 0 ? (size_t)0 : \
BDIGITS(x)[RBIGNUM_LEN(x)-1] ? \
(size_t)(RBIGNUM_LEN(x)*SIZEOF_BDIGITS - nlz(BDIGITS(x)[RBIGNUM_LEN(x)-1])/CHAR_BIT) : \
rb_absint_size(x, NULL))
#define BIGDIVREM_EXTRA_WORDS 2
#define roomof(n, m) ((int)(((n)+(m)-1) / (m)))
@ -293,7 +297,7 @@ bigfixize(VALUE x)
BDIGIT *ds = BDIGITS(x);
if (len == 0) return INT2FIX(0);
if (rb_absint_size(x, NULL) <= sizeof(long)) {
if (BIGSIZE(x) <= sizeof(long)) {
long num = 0;
#if SIZEOF_BDIGITS >= SIZEOF_LONG
num = (long)ds[0];
@ -2253,7 +2257,7 @@ big2ulong(VALUE x, const char *type, int check)
BDIGIT_DBL num;
BDIGIT *ds;
if (rb_absint_size(x, NULL) > sizeof(long)) {
if (BIGSIZE(x) > sizeof(long)) {
if (check)
rb_raise(rb_eRangeError, "bignum too big to convert into `%s'", type);
len = bdigit_roomof(sizeof(long));
@ -4684,7 +4688,7 @@ static VALUE
check_shiftdown(VALUE y, VALUE x)
{
if (!RBIGNUM_LEN(x)) return INT2FIX(0);
if (rb_absint_size(y, NULL) > SIZEOF_LONG) {
if (BIGSIZE(y) > SIZEOF_LONG) {
return RBIGNUM_SIGN(x) ? INT2FIX(0) : INT2FIX(-1);
}
return Qnil;
@ -4886,7 +4890,7 @@ rb_big_aref(VALUE x, VALUE y)
if (!RBIGNUM_SIGN(y))
return INT2FIX(0);
bigtrunc(y);
if (rb_absint_size(y, NULL) > sizeof(long)) {
if (BIGSIZE(y) > sizeof(long)) {
out_of_range:
return RBIGNUM_SIGN(x) ? INT2FIX(0) : INT2FIX(1);
}