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			10 lines
		
	
	
		
			438 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			10 lines
		
	
	
		
			438 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
contract C {
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    fallback() external returns (bytes memory _output) {}
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}
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contract D {
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    fallback(bytes calldata _input) external {}
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}
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// ----
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// TypeError 5570: (45-67): Fallback function either has to have the signature "fallback()" or "fallback(bytes calldata) returns (bytes memory)".
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// TypeError 5570: (131-131): Fallback function either has to have the signature "fallback()" or "fallback(bytes calldata) returns (bytes memory)".
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