mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
66 lines
1.5 KiB
Solidity
66 lines
1.5 KiB
Solidity
contract C {
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function add() public pure returns (uint8, uint8) {
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uint8 x; uint8 y = 0;
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assembly { x := 0x0101 }
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return (x + y, y + x);
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}
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function sub() public pure returns (uint8, uint8) {
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uint8 x; uint8 y = 1;
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assembly { x := 0x0101 }
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return (x - y, y - x);
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}
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function mul() public pure returns (uint8, uint8) {
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uint8 x; uint8 y = 1;
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assembly { x := 0x0101 }
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return (x * y, y * x);
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}
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function div() public pure returns (uint8, uint8) {
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uint8 x; uint8 y = 1;
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assembly { x := 0x0101 }
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return (x / y, y / x);
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}
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function mod() public pure returns (uint8, uint8) {
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uint8 x; uint8 y = 2;
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assembly { x := 0x0101 }
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return (x % y, y % x);
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}
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function inc_pre() public pure returns (uint8) {
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uint8 x;
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assembly { x := 0x0100 }
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return ++x;
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}
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function inc_post() public pure returns (uint8) {
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uint8 x;
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assembly { x := 0x0100 }
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return x++;
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}
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function dec_pre() public pure returns (uint8) {
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uint8 x;
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assembly { x := not(0xFF) }
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return --x;
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}
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function dec_post() public pure returns (uint8) {
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uint8 x;
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assembly { x := not(0xFF) }
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return x--;
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}
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function neg() public pure returns (int8) {
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int8 x;
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assembly { x := 0x80 }
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return -x;
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}
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}
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// ====
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// compileViaYul: true
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// ----
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// add() -> 1, 1
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// sub() -> 0, 0
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// mul() -> 1, 1
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// div() -> 1, 1
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// mod() -> 1, 0
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// inc_pre() -> 1
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// inc_post() -> 0
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// dec_pre() -> FAILURE, hex"4e487b71", 0x11
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// dec_post() -> FAILURE, hex"4e487b71", 0x11
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// neg() -> FAILURE, hex"4e487b71", 0x11
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