solidity/test/libsolidity/smtCheckerTests/external_calls/staticcall_mutex.sol

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2021-08-11 16:10:34 +00:00
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) mutex public {
uint y = x;
_a.staticcall("aaaaa");
assert(y == x); // should hold
}
}
// ====
// SMTEngine: all
// ----
// Warning 9302: (218-240): Return value of low-level calls not used.