7.19 Built-in Procedures and Functions
- GetMem and FreeMem are supported like in BP.
The second parameter to FreeMem is ignored by GNU Pascal and
may be omitted. Memory blocks are always freed with the same size
they were allocated with.
Remark: Extended Pascal Schema types provide a cleaner approach to
most of the applications of GetMem and FreeMem.
- Min and Max: GNU Pascal has built-in Min and
Max functions (two arguments) which work for all ordinal
types (Integer, Char, ...) plus Real.
- UpCase, High, Low and similar functions are
built-in. In contrast to Borland Pascal, GNU Pascal's UpCase
function is aware of non-ASCII characters of certain languages
(e.g., accented letters and “umlauts”), but for compatibility this
feature is disables in --borland-pascal mode. There is also a
- Lo, Hi, Swap functions: not built-in, but
available in the System unit.