On Thu, 12 Dec 2019, Martin Frb wrote:
It does gain something: it tells you it is NOT a varargs, but an
array of
const, which is a different beast altogether.
But it's a syntax equivalent for "a variable amount of arguments",
i.e. varargs. ;) I guess others don't see it this way however.
Somecall(fmt : String; args : Array of Const; anOptionalArg : TType =
SomeDefault);
That still would not break, but it actually is the base for something
that would break.
The point was to demonstrate that array of const is 1 argument.
It is not equal to a variable number of arguments.
It was already mentioned, that the [] can be dropped if the array has
*exactly one* element.
Not sure what you mean here, but even if there is only 1 argument, today the []
cannot be dropped:
home:~> cat tf.pp
program tf;
uses sysutils;
begin
writeln(Format('%s','huh?'));
end.
home:~> fpc tf.pp
tf.pp(6,29) Error: Incompatible type for arg no. 2: Got "Constant String", expected
"Array Of Const"
tf.pp(8) Fatal: There were 1 errors compiling module, stopping
Fatal: Compilation aborted
Error: /usr/local/bin/ppcx64 returned an error exitcode
Michael.
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