pub fn safe_sub(a: i64, b: i64) -> Result<i64, ConsensusError>Expand description
Fast-path subtraction with overflow checking
Uses manual overflow detection for common cases which is faster than
checked_sub for the hot path. Falls back to checked_sub for edge cases.
ยงSafety
This function maintains the same safety guarantees as checked_sub,
but with better performance for common cases.