Peter Gerwinski wrote:
According to Frank Heckenbach:
Until a (more optimized) version of them will be built in, here are some replacements (a bit slower, but should be portable and generate no warnings): [...]
Pointer arithmetics is portable and can be used here to speed it up:
Procedure FillChar ( Var Dest: Void; Count: Integer; C: Char ); Var DestArray: tCharArray absolute Dest; z: ^Char; begin (* FillChar *) for z:= @DestArray [ 0 ] to @DestArray [ Count - 1 ] do z^:= C; end (* FillChar *);
This is getting very interesting :-) We now have many different versions of FillChar! Which should I use?
(Similar for `move'.)
BTW, pointer arithmetics ... should GPC allow constructions like
(*$X+*) Var p, q: ^Char; p:= q + 42;or only
p:= succ ( q, 42 ); ?Personally, I would prefer to allow only the second (Pointer being an ordinal type) and to consider the first (Pointer + Integer) an error, but it's technically easier to allow both, so I ask before I remove a bug somebody might consider a feature. ;-)
Personally, I would keep both. I am not in favour of imposing restrictions on programmers, unless it is for their own good! I suppose we could assume that anyone who wants to use the first permutation knows what he/she is doing.
PS: - another point entirely; is there a switch that will enable a particular unit (in this case SYSTEM.PAS) to be used automatically, without putting it manually in the USES clause of every source file? I am looking for something like
"--auto-use=xxx.pas,yyy.pas,f:\gpc\zzz.pas",
which I can then use from the command line, or put into to GPCC.CFG file.
Best regards, The Chief -------- Dr. Abimbola A. Olowofoyeku (The African Chief) Email: laa12@keele.ac.uk Author of: Chief's Installer Pro 4.01 for Win16 and Win32: Winner of PC PLUS Magazine Gold Award (April 1995 U.K. edition) http://ourworld.compuserve.com/homepages/African_Chief/
ftp://ftp.demon.co.uk/pub/ibmpc/win3/apps/chief/pro/chief401.zip