Function isotope::parser::u64_dec [−][src]
pub fn u64_dec(input: &str) -> IResult<&str, u64>
Expand description
Parse a decimal integer literal as a u64.
Examples
assert_eq!(u64_dec("5"), Ok(("", 5))); // Does not recognize hexadecimal literals, etc! assert_eq!(u64_dec("0x5"), Ok(("x5", 0))); // Overflow! assert!(u64_dec("100000000000000000000").is_err());