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An array represents an indexed collection of elements of the same type (called the
base type). Since each element has a unique index, arrays, unlike sets, can mean-
ingfully contain the same value more than once.

Array types are denoted by constructions in the following form:

type[array_length]

Each of elements of an array is numbered from 

0

through 

array_length

- 1. Every

element of an array is of 

type

and can be accessed by specifying array name fol-

lowed by element’s index within brackets.

Here are a few examples of array declaration:

dim weekdays as byte[7]
dim samples  as word[50]

main:

' Now we can access elements of array variables, for example:
samples[0] = 1
if samples[37] = 0 then

' ...

Constant array is initialized by assigning it a comma-delimited sequence of values
within parentheses. For example:

' Declare a constant array which holds number of days in each month:

const MONTHS as byte[12] = (31,28,31,30,31,30,31,31,30,31,30,31)

Note that indexing is zero based; in the previous example, number of days in Jan-
uary is 

MONTHS[0]

and number of days in December is 

MONTHS[11]

.

The number of assigned values must not exceed the specified length. Vice versa is
possible, when the trailing “excess” elements will be assigned zeroes.

For more information on arrays of 

char

, refer to Strings.

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- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 5