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If Pascal had 1-based indexing, it wouldn't be possible to store the string length at index 0. The first character in a string is always at index 1 because of this. Strings are

    Packed Array[0..255] of Char
See https://www.pascal-programming.info/lesson10.php


Pascal has both. Static arrays in Pascal can have arbitrary indexes with mixed data types:

http://docwiki.embarcadero.com/RADStudio/Sydney/en/Structure...

Examples:

- var MyArray: array [1..100] of Char;

- packed array[Boolean, 1..10, TShoeSize] of Integer;

Dynamic arrays are indexed from zero.




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