mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
57 lines
1.7 KiB
Solidity
57 lines
1.7 KiB
Solidity
library L {
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function f(uint256 v) external pure returns (uint) {
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return v * v;
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}
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function g(uint256 v) external returns (uint) {
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return v * v;
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}
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}
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contract C {
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function addr() public view returns (bool) {
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return address(L) == address(0);
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}
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function g(uint256 v) public view returns (uint256) {
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return L.f(v);
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}
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function h(uint256 v) public returns (uint256) {
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(bool success, bytes memory result) = address(L).delegatecall(abi.encodeWithSignature("f(uint256)", v));
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assert(success);
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return abi.decode(result, (uint256));
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}
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function i(uint256 v) public returns (uint256) {
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(bool success, bytes memory result) = address(L).call(abi.encodeWithSignature("f(uint256)", v));
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assert(success);
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return abi.decode(result, (uint256));
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}
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function j(uint256 v) public returns (uint256) {
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(bool success, bytes memory result) = address(L).delegatecall(abi.encodeWithSignature("g(uint256)", v));
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assert(success);
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return abi.decode(result, (uint256));
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}
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function k(uint256 v) public returns (uint256) {
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(bool success, bytes memory result) = address(L).call(abi.encodeWithSignature("g(uint256)", v));
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assert(success);
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return abi.decode(result, (uint256));
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}
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}
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// ====
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// EVMVersion: >=byzantium
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// ----
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// library: L
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// addr() -> false
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// g(uint256): 1 -> 1
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// g(uint256): 2 -> 4
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// g(uint256): 4 -> 16
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// h(uint256): 1 -> 1
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// h(uint256): 2 -> 4
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// h(uint256): 4 -> 16
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// i(uint256): 1 -> 1
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// i(uint256): 2 -> 4
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// i(uint256): 4 -> 16
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// j(uint256): 1 -> 1
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// j(uint256): 2 -> 4
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// j(uint256): 4 -> 16
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// k(uint256): 1 -> FAILURE
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// k(uint256): 2 -> FAILURE
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// k(uint256): 4 -> FAILURE
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