mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
52 lines
932 B
Solidity
52 lines
932 B
Solidity
|
contract C {
|
||
|
uint[] storageArray;
|
||
|
function test_zeroed_indicies(uint256 len) public
|
||
|
{
|
||
|
storageArray.length = len;
|
||
|
|
||
|
for (uint i = 0; i < len; i++)
|
||
|
storageArray[i] = i + 1;
|
||
|
|
||
|
if (len > 3)
|
||
|
{
|
||
|
storageArray.length = 3;
|
||
|
|
||
|
for (uint i = 3; i < len; i++)
|
||
|
{
|
||
|
assembly {
|
||
|
mstore(0, storageArray_slot)
|
||
|
let pos := add(keccak256(0, 0x20), i)
|
||
|
|
||
|
if iszero(eq(sload(pos), 0)) {
|
||
|
revert(0, 0)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
storageArray.length = 0;
|
||
|
storageArray.length = len;
|
||
|
|
||
|
for (uint i = 0; i < len; i++)
|
||
|
{
|
||
|
require(storageArray[i] == 0);
|
||
|
|
||
|
uint256 val = storageArray[i];
|
||
|
uint256 check;
|
||
|
|
||
|
assembly { check := iszero(val) }
|
||
|
|
||
|
require(check == 1);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
// ====
|
||
|
// compileViaYul: true
|
||
|
// ----
|
||
|
// test_zeroed_indicies(uint256): 1 ->
|
||
|
// test_zeroed_indicies(uint256): 5 ->
|
||
|
// test_zeroed_indicies(uint256): 10 ->
|
||
|
// test_zeroed_indicies(uint256): 15 ->
|
||
|
// test_zeroed_indicies(uint256): 0xFF ->
|