error literal-overflow

What it means#

An integer literal that does not fit the type inferred from its context is a compile-time error (§1.5). A literal without a suffix gets its type from the context, or i64 if there is none.

Example#

fn main() {
  let level: u8 = 300      // <- literal-overflow (u8 holds 0..=255)
}

literal-overflow

How to fix#

fn main() {
  let level: u16 = 300
}

Use a wider type, a smaller value, or a suffix that selects the intended type (300u16). Converting at run time with as panics when the value is out of range (§3.1).

See also#

• invalid-number
• type-mismatch
• refinement-violated