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* time.c (rb_big_abs_find_maxbit): Use rb_absint_size.

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(bdigit_find_maxbit): Removed.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41176 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2013-06-08 11:25:07 +00:00
parent b512e61ca0
commit af612be8e0
2 changed files with 14 additions and 36 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sat Jun 8 20:24:23 2013 Tanaka Akira <akr@fsij.org>
* time.c (rb_big_abs_find_maxbit): Use rb_absint_size.
(bdigit_find_maxbit): Removed.
Sat Jun 8 19:47:00 2013 Charlie Somerville <charliesome@ruby-lang.org> Sat Jun 8 19:47:00 2013 Charlie Somerville <charliesome@ruby-lang.org>
* class.c (include_modules_at): invalidate method cache if included * class.c (include_modules_at): invalidate method cache if included

45
time.c
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@ -296,47 +296,20 @@ w2v(wideval_t w)
} }
#if WIDEVALUE_IS_WIDER #if WIDEVALUE_IS_WIDER
static int
bdigit_find_maxbit(BDIGIT d)
{
int res = 0;
if (d & ~(BDIGIT)0xffff) {
d >>= 16;
res += 16;
}
if (d & ~(BDIGIT)0xff) {
d >>= 8;
res += 8;
}
if (d & ~(BDIGIT)0xf) {
d >>= 4;
res += 4;
}
if (d & ~(BDIGIT)0x3) {
d >>= 2;
res += 2;
}
if (d & ~(BDIGIT)0x1) {
d >>= 1;
res += 1;
}
return res;
}
static VALUE static VALUE
rb_big_abs_find_maxbit(VALUE big) rb_big_abs_find_maxbit(VALUE big)
{ {
BDIGIT *ds = RBIGNUM_DIGITS(big); int num_zeros;
BDIGIT d; size_t bytesize;
long len = RBIGNUM_LEN(big);
VALUE res; VALUE res;
while (0 < len && ds[len-1] == 0)
len--; bytesize = rb_absint_size(big, &num_zeros);
if (len == 0) if (bytesize == 0)
return Qnil; return Qnil;
res = mul(LONG2NUM(len-1), INT2FIX(SIZEOF_BDIGITS * CHAR_BIT));
d = ds[len-1]; res = mul(SIZET2NUM(bytesize), LONG2FIX(CHAR_BIT));
res = add(res, LONG2FIX(bdigit_find_maxbit(d))); if (num_zeros)
res = sub(res, LONG2FIX(num_zeros));
return res; return res;
} }