Float literal out of range for f64

Built from the repository at commit a8614dc.

A float literal must round to a finite f64, which holds magnitudes up to about 1.8e308. 1e400 rounds to infinity and is an error.

Why

A literal is rounded to the nearest f64, and no f64 is near 1e400. Silently turning it into infinity would hide a typo, so the literal is an error. A literal below the smallest f64, such as 1e-400, rounds to zero and is not an error. The compiler does not invent a value, so there is no fix.

Broken

fn main() {
    let x = 1e400
    print(x)
}

What sisu says

error[E0103]: literal out of range for `f64`
 --> E0103.sisu:2:13
  |
2 |     let x = 1e400
  |             ^^^^^

sisu: 1 error
sisu: for more on a code, run `sisu explain <code>`: E0103

Fixed

fn main() {
    let x = 1e300
    print(x)
}