solidity/test/libsolidity/smtCheckerTests/operators/delete_multid_array.sol
2021-03-30 10:28:48 +02:00

61 lines
1.3 KiB
Solidity

pragma experimental SMTChecker;
contract C {
uint[] a;
uint[][] b;
function p() public { a.push(); }
function q() public { b.push().push(); }
function f(uint x, uint v) public {
require(x < a.length);
a[x] = v;
delete a;
assert(a.length == 0);
}
function g(uint x, uint y, uint v) public {
require(x < b.length);
require(y < b[x].length);
b[x][y] = v;
delete b;
assert(b.length == 0);
}
function h(uint x, uint y, uint v) public {
require(x < b.length);
require(y < b[x].length);
b[x][y] = v;
delete b[x];
assert(b[x].length == 0);
}
function i(uint x, uint y, uint v) public {
require(x < b.length);
require(y < b[x].length);
b[x][y] = v;
require(y < b.length);
delete b[y];
assert(b[y].length == 0);
}
function j(uint x, uint y, uint z, uint v) public {
require(x < b.length);
require(y < b[x].length);
b[x][y] = v;
require(z < b.length);
delete b[z];
// Not necessarily the case.
require(y < b.length);
require(x < b[x].length);
// Disabled because of Spacer nondeterminism.
//assert(b[y][x] == 0);
}
function setA(uint x, uint y) public {
require(x < a.length);
a[x] = y;
}
function setB(uint x, uint y, uint z) public {
require(x < b.length);
require(y < b[x].length);
b[x][y] = z;
}
}
// ====
// SMTIgnoreCex: yes
// ----