i
is
u
us
..
This breaks code that looks like: match foo { 1..3 => { ... } } Instead, write: match foo { 1...3 => { ... } } Closes #17295. [breaking-change]
int
f64
floating point numbers for real. This will break code that looks like: let mut x = 0; while ... { x += 1; } println!("{}", x); Change that code to: let mut x = 0i; while ... { x += 1; } println!("{}", x); Closes #15201. [breaking-change]
alt
match
