Mikroelektronika MIKROE-350 Fiche De Données

A string represents a sequence of characters equivalent to an array of 

char

. It is

declared like this:

string[string_length]

The specifier 

string_length

is a number of characters a string consists of. The

string is stored internally as the given sequence of characters plus a final 

null

char-

acter (zero). This appended “stamp” does not count against string’s total length.

A null string (

""

) is stored as a single 

null

character.

You can assign string literals or other strings to string variables. The string on the
right side of an assignment operator has to be shorter than another one, or of equal
length. For example:

dim msg1 as string[20]
dim msg2 as string[19]

main:

msg1 = "This is some message"
msg2 = "Yet another message"

msg1 = msg2  ' this is ok, but vice versa would be illegal

Alternately, you can handle strings element–by–element. For example: 

dim s as string[5]
' ...
s = "mik"
' s[0] is char literal "m"
' s[1] is char literal "i"
' s[2] is char literal "k"
' s[3] is zero
' s[4] is undefined

' s[5] is undefined

Be careful when handling strings in this way, since overwriting the end of a string will
cause an unpredictable behavior.

mikroBasic PRO for AVR includes String Library which automatizes string related tasks.

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- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 5