anonymous structs within structs

[H. S. Teoh]

On Mon, Dec 04, 2023 at 11:46:45PM +0000, DLearner via Digitalmars-d-learn wrote:
[...]
> Basically, B corresponds to the whole record (and only a whole record
> can be read).
> But the task only requires Var1 and Var2, the last two fields on the record.
> By putting all the irrelevant fields into A, and defining B as above,
> program remains unpolluted with data it does not need.
[...]

Sounds like what you need is something like this:

	struct Record {
		struct UnimportantStuff {
			...
		}
		UnimportantStuff unimportant;

		struct ImportantStuff {
			...
		}
		ImportantStuff important;
	}

	ImportantStuff readData() {
		Record rec = readData(...); // read entire record
		return rec.important; // discard unimportant stuff
	}

	int main() {
		...
		ImportantStuff data = readData(); // only important stuff returned
		processData(data);
		...
	}


T

-- 
Let X be the set not defined by this sentence...