[fpc-pascal] Array clearing
Jürgen Hestermann
juergen.hestermann at gmx.de
Wed Apr 12 16:43:13 CEST 2017
Am 2017-04-12 um 16:17 schrieb Ryan Joseph:
> SetLength resizes the array in memory and “clear” means setting all values to default() for that type.
"clear" is not very clear to me ;-)
IMO SetLength(array,0) is clearing too.
The function you want should be called "Fill".
For example a function
Array.Fill(DefaultValue);
But what happens to a multi-dimensional (dynamic) array?
For example, how to handle this case:
Type MyType = record
A : Integer;
B : array of char;
C : array of Float;
end; // of record
ArrayA = array of MyType;
ArrayB = array of ArrayA.
What would be the DefaultValue for
ArrayB.Fill(DefaultValue);
?
I don't see how this can be achieved in a solid and easy to unterstand Array.Fill routine....
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