DIM INTEGER Str1(MaxLen/8), Str2(MaxLen/8), Str3(MaxLen/8)

These will contain empty strings when created (ie, their length will be zero). When these variables are passed to the long string functions they should be entered as the variable name followed by empty brackets. For example:

LONGSTRING COPY Str1(), Str2()

Long string variables can be passed as arguments to user defined subroutines and functions. For example:

Sub MySub lstr() AS INTEGER
PRINT "Long string length is" LLEN(lstr())
END SUB

And it could be called like this:

MySub str1()

Sub MySub str1() AS INTEGER
PRINT "Long string length is" LLEN(str1())
END SUB

Sub MySub longarg() AS INTEGER
 PRINT  "Long string length is" LLEN(longarg())
END SUB

[60] LongString AES128 ENCRYPT CTR key$,inp%(),out%(),iv$
Error : input must be multiple of 16 elements long

PicoMiteHDMI MMBasic RP2350A Edition V6.00.01
OPTION FLASH SIZE 4194304
OPTION KEYBOARD GR
OPTION CPUSPEED (KHz) 315000
OPTION SDCARD GP5, GP2, GP3, GP4
OPTION F9 *"B:FM113d"

Dim key$
Do
  Do :Loop While Inkey$<>""
  Do :Key$=Inkey$:Loop While Key$=""
  Print Asc(key$)
Loop
End