Built-in Procedures and Functions

• `Write' and `writeln' default behaviour: The numeric default format of "write" and "writeln" differs between both Pascal dialects. The standard format of GNU Pascal is a field of length 14 for real, and a field of length 10 for integer values, while Borland Pascal begins just left by default. An explicit fieldlength of zero causes GNU Pascal to omit the output; in Borland Pascal it yields the default.
• `GetMem' and `FreeMem': `GetMem' can also act as a function in GNU Pascal:

    p:= GetMem ( 1024 );
  

  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 will provide a cleaner approach to most of the applications of `GetMem' and `FreeMem' in the future.
• `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' function: not built-in.
• `Lo', `Hi', `Swap' functions: not built-in.