[Solved] How do you correctly overload the - operator for a struct named Distance in Swift? — Ans: static func - (lhs: Distance, rhs: Distance) -> Distance { return... | Swift

Swift - Operators and Expressions

How do you correctly overload the - operator for a struct named Distance in Swift?

Astatic func - (lhs: Distance, rhs: Distance) -> Distance { return Distance(value: lhs.value - rhs.value) }

Bfunc - (lhs: Distance, rhs: Distance) -> Distance { return Distance(value: lhs.value - rhs.value) }

Cstatic func subtract(lhs: Distance, rhs: Distance) -> Distance { return Distance(value: lhs.value - rhs.value) }

Dfunc subtract(lhs: Distance, rhs: Distance) -> Distance { return Distance(value: lhs.value - rhs.value) }

Step-by-Step Solution

Solution:

Step 1: Declare the operator function as static
Operator overloads must be static methods inside the struct.
Step 2: Use the correct operator symbol and parameters
The function must be named with the operator symbol (-) and take two parameters of type Distance.
Step 3: Return a new Distance instance
The function returns a new Distance with the value calculated by subtracting rhs.value from lhs.value.
Final Answer:
Option A -> Option A
Quick Check:
Static + operator symbol + correct parameters [OK]

Quick Trick: Operator overloads are static functions with operator symbol [OK]

Common Mistakes:

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How do you correctly overload the - operator for a struct named Distance in Swift?