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* ext/bigdecimal/bigdecimal.c (VpAddAbs): put out a conditional branch from

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the inside of while-loop.

* ext/bigdecimal/bigdecimal.c (VpSubAbs): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44152 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mrkn 2013-12-12 17:02:24 +00:00
parent 27d53fb5df
commit 7d3538db3f
2 changed files with 23 additions and 16 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
Wed Dec 13 01:56:00 2013 Kenta Murata <mrkn@mrkn.jp>
* ext/bigdecimal/bigdecimal.c (VpAddAbs): put out a conditional branch from
the inside of while-loop.
* ext/bigdecimal/bigdecimal.c (VpSubAbs): ditto.
Wed Dec 13 01:53:00 2013 Kenta Murata <mrkn@mrkn.jp> Wed Dec 13 01:53:00 2013 Kenta Murata <mrkn@mrkn.jp>
* ext/bigdecimal/bigdecimal.c (VPrint): be a static function, support another * ext/bigdecimal/bigdecimal.c (VPrint): be a static function, support another

30
ext/bigdecimal/bigdecimal.c
View File

@ -4196,14 +4196,14 @@ VpAddAbs(Real *a, Real *b, Real *c)
/* Just assign the last few digits of b to c because a has no */ /* Just assign the last few digits of b to c because a has no */
/* corresponding digits to be added. */ /* corresponding digits to be added. */
while (b_pos + word_shift > a_pos) {
--c_pos;
if (b_pos > 0) { if (b_pos > 0) {
c->frac[c_pos] = b->frac[--b_pos]; while (b_pos > 0 && b_pos + word_shift > a_pos) {
c->frac[--c_pos] = b->frac[--b_pos];
} }
else { }
--word_shift; if (b_pos == 0 && word_shift > a_pos) {
c->frac[c_pos] = 0; while (word_shift-- > a_pos) {
c->frac[--c_pos] = 0;
} }
} }
@ -4299,17 +4299,17 @@ VpSubAbs(Real *a, Real *b, Real *c)
/* each of the last few digits of the b because the a has no */ /* each of the last few digits of the b because the a has no */
/* corresponding digits to be subtracted. */ /* corresponding digits to be subtracted. */
if (b_pos + word_shift > a_pos) { if (b_pos + word_shift > a_pos) {
while (b_pos + word_shift > a_pos) { while (b_pos > 0 && b_pos + word_shift > a_pos) {
--c_pos; c->frac[--c_pos] = BASE - b->frac[--b_pos] - borrow;
if (b_pos > 0) {
c->frac[c_pos] = BASE - b->frac[--b_pos] - borrow;
}
else {
--word_shift;
c->frac[c_pos] = BASE - borrow;
}
borrow = 1; borrow = 1;
} }
if (b_pos == 0) {
while (word_shift > a_pos) {
--word_shift;
c->frac[--c_pos] = BASE - borrow;
borrow = 1;
}
}
} }
/* Just assign the last few digits of a to c because b has no */ /* Just assign the last few digits of a to c because b has no */
/* corresponding digits to subtract. */ /* corresponding digits to subtract. */