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			17 lines
		
	
	
		
			424 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			17 lines
		
	
	
		
			424 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
contract Test {
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  struct Sample { bool flag; }
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  Sample public s;
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  modifier checkAddr(address _a){
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      require(_a!=address(0));
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      _;
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  }
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  function testFunc(address _a) external checkAddr(_a) {
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        Sample storage t;
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        t.flag=true;
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    }
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}
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// ----
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// TypeError 3464: (237-238): This variable is of storage pointer type and can be accessed without prior assignment, which would lead to undefined behaviour.
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