1.1.0
```rust
cfor!{let mut x = 0, let mut y = 1; x < 4; x += 1, y *= 2; {
println!("{} {}", x, y);
}}
```
Output:
```
0 1
1 2
2 4
3 8
```
```rust
cfor!{let mut x = 0, let mut y = 1; x < 4; x += 1, y *= 2; {
println!("{} {}", x, y);
}}
```
Output:
```
0 1
1 2
2 4
3 8
```