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Fix an off by one in rb_ary_resize

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When setting len to X we only need to grow the array
if len is bigger than capa. If they're equal we don't need to
increase capacity.
This commit is contained in:
Jean Boussier 2024-12-04 19:55:35 +01:00
parent 1c4dbb133e
commit bf225feb26
Notes: git 2024-12-04 21:46:24 +00:00 
Merged: https://github.com/ruby/ruby/pull/12262
1 changed files with 1 additions and 1 deletions
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array.c
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@ -2304,7 +2304,7 @@ rb_ary_resize(VALUE ary, long len)
rb_raise(rb_eIndexError, "index %ld too big", len); rb_raise(rb_eIndexError, "index %ld too big", len);
} }
if (len > olen) { if (len > olen) {
if (len >= ARY_CAPA(ary)) { if (len > ARY_CAPA(ary)) {
ary_double_capa(ary, len); ary_double_capa(ary, len);
} }
ary_mem_clear(ary, olen, len - olen); ary_mem_clear(ary, olen, len - olen);