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8E. the complex type (STRING/LIST)
- STRINGs. Similar to arrays, but different in the respect that they may
only be changed by using E string functions, and that they contain
length and maxlength information, so string functions may alter them in a
safe fashion, i.e: the string can never grow bigger than the memory
area it is in. Definition:
The STRING datatype (called an estring) is backwards compatible with
PTR TO CHAR and of course ARRAY OF CHAR, but not the other way around.
(see 9B on string functions for more details).
- LISTs. These may be interpreted as a mix between a STRING and an ARRAY
OF LONG. I.e: this data structure holds a list of LONG variables which may
be extended and shortened like STRINGs. Definition:
A powerful addition to this datatype is that it also has a 'constant'
equivalent , like STRINGs have ''. LIST is backward compatible with
PTR TO LONG and of course ARRAY OF LONG, but not the other way around.
(see 9C and 2G) for more on this.