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regexec: do index arithmetic/comparison in unsigned mode #23762

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Merged
merged 1 commit into from
Sep 23, 2025
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regexec: do index arithmetic/comparison in unsigned mode #23762

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4 changes: 2 additions & 2 deletions regexec.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6273,8 +6273,8 @@ S_isWB(pTHX_ WB_enum previous,
/* Here 'matched' is true if the DFA matched the input. If so,
* [index+1] contains the value to return */
if (matched) {
assert(index+1 < C_ARRAY_LENGTH(WB_dfa_table));
return WB_dfa_table[index+1];
assert(index+1u < C_ARRAY_LENGTH(WB_dfa_table));
return WB_dfa_table[index+1u];
}

/* Here, it didn't match. In [index+2] is stored the index into the
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