solidity/test/libsolidity/smtCheckerTests/external_calls/staticcall_mutex_2.sol
2022-04-01 23:41:18 -05:00

28 lines
637 B
Solidity

contract C {
uint x;
bool lock;
modifier mutex {
require(!lock);
lock = true;
_;
lock = false;
}
function set(uint _x) mutex public {
x = _x;
}
function f(address _a) public {
uint y = x;
_a.staticcall("aaaaa");
assert(y == x); // should hold
}
}
// ====
// SMTEngine: all
// ----
// Warning 9302: (212-234='_a.staticcall("aaaaa")'): Return value of low-level calls not used.
// Warning 2018: (164-271): Function state mutability can be restricted to view
// Info 1180: Reentrancy property(ies) for :C:\n(<errorCode> <= 0)\n<errorCode> = 0 -> no errors\n<errorCode> = 1 -> Assertion failed at assert(y == x)\n