// Oops! The hermit forgot how to capture the union values
// in a switch statement. Please capture each value as
// 'p' so the print statements work!
- .place => print("{s}", .{p.name}),
- .path => print("--{}->", .{p.dist}),
+ .place => |p| print("{s}", .{p.name}),
+ .path => |p| print("--{}->", .{p.dist}),
}
}
};
// dereference and optional value "unwrapping" look
// together. Remember that you return the address with the
// "&" operator.
- if (place == entry.*.?.place) return entry;
+ if (place == entry.*.?.place) return &entry.*.?;
// Try to make your answer this long:__________;
}
return null;
//
// Looks like the hermit forgot something in the return value of
// this function. What could that be?
- fn getTripTo(self: *HermitsNotebook, trip: []?TripItem, dest: *Place) void {
+ fn getTripTo(self: *HermitsNotebook, trip: []?TripItem, dest: *Place) TripError!void {
// We start at the destination entry.
const destination_entry = self.getEntry(dest);