[Info-vax] Any Way to Pass Arrays of Strings from C to Basic?

[Arne Vajhøj]

On 11/9/2019 6:20 PM, Arne Vajhøj wrote:
> On 11/9/2019 12:20 PM, Dave Froble wrote:
>> Anything can be improved.  However, descriptors, as a concept, are a 
>> whole bunch better than not having descriptors, or something better.
> 
> I agree.
> 
> And it is what most modern languages do. They pass something
> that has both information about what is being passed and a reference
> to the actual data.
> 
> It is not called a descriptor. But I cannot see why it should not
> be considered a descriptor.

$ type ArgDump.java
public class ArgDump  {
     public static void demo(Object... arg) {
         for(int i = 0; i < arg.length; i++) {
             if(i > 0) System.out.print(" ");
             System.out.print(arg[i].getClass().getName());
         }
         System.out.println();
     }
     public static void main(String[] args) {
         demo(123, "ABC");
         demo(123.456);
     }
}
$ javac "ArgDump.java"
$ java "ArgDump"
java.lang.Integer java.lang.String
java.lang.Double

Sure - it is called passing objects or instances of
classes.

But the concept is really the same as passing a descriptor.

Arne