solidity/test/libsolidity/smtCheckerTests/control_flow/require.sol
2021-01-12 14:57:04 +01:00

35 lines
888 B
Solidity

pragma experimental SMTChecker;
contract C {
function f() pure public {
require(false);
// This is not reachable.
assert(false);
}
function g() pure public {
require(false, "require message");
// This is not reachable.
assert(false);
}
function h(bool b) pure public {
if (b)
require(false);
assert(!b);
}
// Check that arguments are evaluated.
bool x = false;
function m() view internal returns (string memory) {
assert(x != true);
}
function i() public {
x = true;
require(false, m());
}
}
// ----
// Warning 6321: (429-442): Unnamed return variable can remain unassigned. Add an explicit return with value to all non-reverting code paths or name the variable.
// Warning 6328: (448-465): CHC: Assertion violation happens here.\nCounterexample:\nx = true\n\nTransaction trace:\nC.constructor()\nState: x = false\nC.i()\n C.m() -- internal call