1contract C {
2    function f() pure external {
3        assembly {
4            let s := returndatasize()
5            returndatacopy(0, 0, s)
6        }
7    }
8    function g() view external returns (uint ret) {
9        assembly {
10            ret := staticcall(0, gas(), 0, 0, 0, 0)
11        }
12    }
13}
14// ====
15// EVMVersion: =homestead
16// ----
17// TypeError 4778: (86-100): The "returndatasize" instruction is only available for Byzantium-compatible VMs (you are currently compiling for "homestead").
18// DeclarationError 3812: (77-102): Variable count mismatch for declaration of "s": 1 variables and 0 values.
19// TypeError 7756: (115-129): The "returndatacopy" instruction is only available for Byzantium-compatible VMs (you are currently compiling for "homestead").
20// TypeError 1503: (245-255): The "staticcall" instruction is only available for Byzantium-compatible VMs (you are currently compiling for "homestead").
21// DeclarationError 8678: (238-277): Variable count for assignment to "ret" does not match number of values (1 vs. 0)
22