On Fri, 9 Oct 2020, Bo Berglund via fpc-pascal wrote:
On Thu, 8 Oct 2020 23:00:32 +0200 (CEST), Michael Van Canneyt via
fpc-pascal
<fpc-pascal@lists.freepascal.org> wrote:
On Thu, 8 Oct 2020, Ryan Joseph via fpc-pascal wrote:
On Oct 8, 2020, at 5:14 AM, gabor via fpc-pascal
<fpc-pascal@lists.freepascal.org> wrote:
You can define typed constant and assign it to variable.
type
TMyRecord = record
X, Y: Integer;
S: String;
end;
const
MYDEFREC: TMyRecord = (X: 1; Y: 2; S: 'ABC');
I never understood why we can't initialize fields at init time for
records. Pascal seems to be the only language that doesn't support this
in 2020. Thinking of C++, C#, PHP, Swift and many more all let you do
this. Not even Delphi supports this AKAIK.
Of course you can:
var
x : record a,b : integer; end = (a:1;b:3);
begin
end.
This is identical to how C++ does it. From cppreference.com:
typedef struct { int k; int l; int a[2]; } T;
T x = {.l = 43, .k = 42, .a[1] = 19, .a[0] = 18 };
If you do that can you be selective and initialize only some fields or
must you list all or none?
You can do selected fields.
Fields you didn't specify are undefined.
But the code you posted is wrong.
Michael.
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