[fpc-pascal] Dynamic Arrays in Procedures

James Richters james at productionautomation.net
Sun Oct 4 21:58:55 CEST 2020


I'm wondering if there is a way to pass an array of values to a Procedure
without defining an array variable.. 
 
For example, if I have a Procedure:
 
Procedure DoSomething(X :Byte);
 
Then I can call it with a specific a variable like this:
 
Var
   ThingA :Byte;
.
 
DoSomething(ThingA);  
 
And I can also call it without a variable but instead just hard code a
specific value like this:
 
DoSomething($1A);
 
 
So if I have a procedure like this:
 
Procedure DoSomethingElse(Y :Array of Byte);
 
I can call it like this:
Var
   ThingB :Array Of Byte;
 
SetLength(ThingB,3);
ThingB[0] :=$12;
ThingB[1] :=$1A;
ThingB[2] :=$2B;
DoSomethingElse(ThingB);
 
But can I also just call it with specific values somehow?
DoSomethingElse([$12,$1A,$2B]);   for example. of course this doesn't work,
but is there a syntax that would work?
 
James
 
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