Re: Simple Pascal question

On 8/4/2024 8:09 PM, Dan Cross wrote:

In article <v8o4h8$2ut3$1@dont-email.me>,
Arne Vajhøj  <arne@vajhoej.dk> wrote:

On 8/4/2024 8:22 AM, Dan Cross wrote:

Interesting, this has become du jour again in modern languages,
but those tend to provide access to a `slice` type that provides
a window onto the underly array, and implicitly encodes a
length (and usually a "capacity").  This makes working with
arrays in such languages very convenient.

>
Different people may have different opinions on what is a modern
language.

 Designed in this century.

That rules out Java.
But there are still languages like C#, Scala and Kotlin.

But a lot of the widely used static typed languages does not
have any problems with arrays of different lengths as they
are treated as objects.

 Like I said, modern languages make this a solved problem.

But C#, Scala and Kotlin also just allows for passing any length
arrays to methods taking an array.

Like:
>
public class FlexArray {
     private static void dump(int[] a) {
         for(int v : a) {
             System.out.printf(" %d", v);
         }
         System.out.println();
     }
     public static void main(String[] args) throws Exception {
         int[] a1 = { 1 };
         int[] a2 = { 1, 2 };
         int[] a3 = { 1, 2, 3 };
         dump(a1);
         dump(a2);
         dump(a3);
     }
}

 Java arrays are more like the aforementioned slices.

I don't think so.
Java does not have anything like slices.
C# does.
C# Span is similar to slices. But C# Span and C# array are far from
the same.
Arne