checkedAdd (Function)

Signature: checkedAdd(a: int, b: int) -> Result<int, Error>

Description: Integer addition that reports overflow instead of wrapping. The + operator returns plain int because a wrapped result is still representable; this returns Result<int, MathError>.

Parameters

• a (int): The first addend
• b (int): The second addend

Returns: Result<int, Error>

Example

let t = checkedAdd(a: 9223372036854775807, b: 1) ?: 0  // 0 — overflow reported

t = checkedAdd (a: 9223372036854775807, b: 1) ?: 0  // 0 — overflow reported