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...
