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			19 lines
		
	
	
		
			328 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			19 lines
		
	
	
		
			328 B
		
	
	
	
		
			Solidity
		
	
	
	
	
	
| pragma experimental SMTChecker;
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| 
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| contract C
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| {
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| 	mapping (uint => uint) map;
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| 	function f(uint x) public {
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| 		map[x] = 5;
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| 		uint a = --map[x];
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| 		assert(map[x] == 4);
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| 		assert(a == 4);
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| 		uint b = map[x]--;
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| 		assert(map[x] == 3);
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| 		// Should fail.
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| 		assert(b > 4);
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| 	}
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| }
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| // ----
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| // Warning: (244-257): Assertion violation happens here
 |