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-rw-r--r--array.c32
1 files changed, 19 insertions, 13 deletions
diff --git a/array.c b/array.c
index 3994ce6e0d..1300e574ce 100644
--- a/array.c
+++ b/array.c
@@ -173,6 +173,21 @@ ary_resize_capa(VALUE ary, long capacity)
}
static void
+ary_double_capa(VALUE ary, long min)
+{
+ long new_capa = ARY_CAPA(ary) / 2;
+
+ if (new_capa < ARY_DEFAULT_SIZE) {
+ new_capa = ARY_DEFAULT_SIZE;
+ }
+ if (new_capa >= ARY_MAX_SIZE - min) {
+ new_capa = (ARY_MAX_SIZE - min) / 2;
+ }
+ new_capa += min;
+ ary_resize_capa(ary, new_capa);
+}
+
+static void
rb_ary_decrement_share(VALUE shared)
{
if (shared) {
@@ -580,16 +595,7 @@ rb_ary_store(VALUE ary, long idx, VALUE val)
rb_ary_modify(ary);
if (idx >= ARY_CAPA(ary)) {
- long new_capa = ARY_CAPA(ary) / 2;
-
- if (new_capa < ARY_DEFAULT_SIZE) {
- new_capa = ARY_DEFAULT_SIZE;
- }
- if (new_capa >= ARY_MAX_SIZE - idx) {
- new_capa = (ARY_MAX_SIZE - idx) / 2;
- }
- new_capa += idx;
- ary_resize_capa(ary, new_capa);
+ ary_double_capa(ary, idx);
}
if (idx > RARRAY_LEN(ary)) {
rb_mem_clear(RARRAY_PTR(ary) + RARRAY_LEN(ary),
@@ -839,7 +845,7 @@ rb_ary_unshift_m(int argc, VALUE *argv, VALUE ary)
if (argc == 0) return ary;
rb_ary_modify(ary);
if (ARY_CAPA(ary) <= (len = RARRAY_LEN(ary)) + argc) {
- ary_resize_capa(ary, len + argc + ARY_DEFAULT_SIZE);
+ ary_double_capa(ary, len + argc);
}
/* sliding items */
@@ -1203,7 +1209,7 @@ rb_ary_splice(VALUE ary, long beg, long len, VALUE rpl)
}
len = beg + rlen;
if (len >= ARY_CAPA(ary)) {
- ary_resize_capa(ary, len);
+ ary_double_capa(ary, len);
}
rb_mem_clear(RARRAY_PTR(ary) + RARRAY_LEN(ary), beg - RARRAY_LEN(ary));
if (rlen > 0) {
@@ -1216,7 +1222,7 @@ rb_ary_splice(VALUE ary, long beg, long len, VALUE rpl)
alen = RARRAY_LEN(ary) + rlen - len;
if (alen >= ARY_CAPA(ary)) {
- ary_resize_capa(ary, alen);
+ ary_double_capa(ary, alen);
}
if (len != rlen) {