pub const MAX_BUF_LEN: usize = 26;
The max length the inner buffer within Unsigned or Int can be.
Unsigned
Int
u64::MAX == "18_446_744_073_709_551_615".len() == 26
u64::MAX
"18_446_744_073_709_551_615".len()
26
i64::MIN == "-9,223,372,036,854,775,808".len() == 26
i64::MIN
"-9,223,372,036,854,775,808".len()