solidity/test/libsolidity/smtCheckerTests/operators/unary_sub_mapping.sol
2023-03-09 14:59:32 +01:00

21 lines
484 B
Solidity

contract C
{
mapping (uint => uint) map;
function f(uint x) public {
map[x] = 5;
uint a = --map[x];
assert(map[x] == 4);
assert(a == 4);
uint b = map[x]--;
assert(map[x] == 3);
// Should fail.
assert(b > 4);
}
}
// ====
// SMTEngine: all
// SMTIgnoreCex: yes
// ----
// Warning 6328: (211-224): CHC: Assertion violation happens here.
// Info 1391: CHC: 5 verification condition(s) proved safe! Enable the model checker option "show proved safe" to see all of them.