mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
24 lines
376 B
Solidity
24 lines
376 B
Solidity
contract C {
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uint[] a;
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uint l;
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function p() public {
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require(a.length < type(uint).max - 1);
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require(l < type(uint).max - 1);
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a.push();
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++l;
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}
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function q() public {
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require(a.length > 0);
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require(l > 0);
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a.pop();
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--l;
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}
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function r() public view returns (uint) {
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require(l > 0);
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return a[l - 1]; // safe access
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}
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}
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// ====
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// SMTEngine: all
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// ----
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