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Dan RobinsonParadigm
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Dan Robinson
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Submission ea322e4c

Retrying

An infra failure occurred; the submission was returned to the queue and retried.

Author
@0xalpharush
Points
0
Verdict
—
Resolution
—
Submitted
Aug 10, 2026, 09:19 PM
Reviewed
Aug 10, 2026, 09:20 PM

Source

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.35;

/* ===ARENA-MANIFEST===
{
  "deploy": { "contract": "MappingString", "args": [] },
  "entry": { "function": "mutate", "args": [] },
  "feature": "mapping-storage-string-bytes-reinterpret-write",
  "note": "solc writes bytes(names[7])[0] through a mapping-held storage string and returns 65; solidity-lean panics instead."
}
===END-ARENA-MANIFEST=== */

contract MappingString {
    mapping(uint256 => string) private names;

    constructor() {
        names[7] = "abc";
    }

    function mutate() external returns (uint256) {
        bytes(names[7])[0] = 0x41;
        return uint8(bytes(names[7])[0]);
    }
}