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https://github.com/ethereum/solidity
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16 lines
485 B
Solidity
16 lines
485 B
Solidity
contract A {
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function f() external virtual {}
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}
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contract B {
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function f() external virtual {}
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}
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contract C is A, B {
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function f() external override (A, B);
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}
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contract X is C {
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}
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// ----
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// TypeError: (120-158): Overriding an implemented function with an unimplemented function is not allowed.
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// TypeError: (120-158): Overriding an implemented function with an unimplemented function is not allowed.
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// TypeError: (120-158): Functions without implementation must be marked virtual.
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