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			27 lines
		
	
	
		
			571 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			27 lines
		
	
	
		
			571 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| contract C {
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| 	uint x;
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| 
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| 	bool lock;
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| 	modifier mutex {
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| 		require(!lock);
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| 		lock = true;
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| 		_;
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| 		lock = false;
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| 	}
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| 
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| 	function set(uint _x) mutex public {
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| 		x = _x;
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| 	}
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| 
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| 	function f(address _a) mutex public {
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| 		uint y = x;
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| 		_a.staticcall("aaaaa");
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| 		assert(y == x); // should hold
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| 	}
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| }
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| // ====
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| // SMTEngine: all
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| // ----
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| // Warning 9302: (218-240): Return value of low-level calls not used.
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| // Info 1180: Reentrancy property(ies) for :C:\n((!lock || (<errorCode> <= 0)) && (lock' || !lock))\n<errorCode> = 0 -> no errors\n<errorCode> = 1 -> Assertion failed at assert(y == x)\n
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