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string.c: fix boundary check in String#bytesplice

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It should be able to append to the receiver.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2023-01-29 17:10:15 +09:00
parent a2e2e83012
commit d41ea96c2a
1 changed files with 1 additions and 1 deletions
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src/string.c
+1 -1
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@@ -2950,7 +2950,7 @@ static mrb_value
str_bytesplice(mrb_state *mrb, mrb_value str, mrb_int idx1, mrb_int len1, mrb_value replace, mrb_int idx2, mrb_int len2)
{
struct RString *s = RSTRING(str);
if (RSTR_LEN(s) <= idx1 || RSTRING_LEN(replace) <= idx2) {
if (RSTR_LEN(s) < idx1 || RSTRING_LEN(replace) < idx2) {
mrb_raise(mrb, E_INDEX_ERROR, "index out of string");
}
if (RSTR_LEN(s) <= idx1+len1) {