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Merge pull request #352 from monaka/pr-range-check-optimization-array.c

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Optimize range check.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2012-07-07 08:27:58 -07:00
parent 7eb86a4aaf 312b2c7b16
commit 5b418a37ac
1 changed files with 8 additions and 4 deletions
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src/array.c
+8 -4
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@@ -566,9 +566,11 @@ mrb_ary_set(mrb_state *mrb, mrb_value ary, mrb_int n, mrb_value val) /* rb_ary_s
ary_modify(mrb, a);
/* range check */
if (n < 0) n += a->len;
if (n < 0) {
mrb_raise(mrb, E_INDEX_ERROR, "index %ld out of array", n - a->len);
n += a->len;
if (n < 0) {
mrb_raise(mrb, E_INDEX_ERROR, "index %ld out of array", n - a->len);
}
}
if (a->len <= (int)n) {
if (a->aux.capa <= (int)n)
@@ -592,9 +594,11 @@ mrb_ary_splice(mrb_state *mrb, mrb_value ary, mrb_int head, mrb_int len, mrb_val
ary_modify(mrb, a);
/* range check */
if (head < 0) head += a->len;
if (head < 0) {
mrb_raise(mrb, E_INDEX_ERROR, "index is out of array");
head += a->len;
if (head < 0) {
mrb_raise(mrb, E_INDEX_ERROR, "index is out of array");
}
}
tail = head + len;