[fpc-pascal] Delete and Add for TBytes?
pascaldragon at googlemail.com
Thu Jul 13 00:15:40 CEST 2017
Am 12.07.2017 16:08 schrieb "Bo Berglund" <bo.berglund at gmail.com>:
> To remove Count processed bytes from the beginning:
> Buffer: AnsiString;
> Delete(Buffer, 1, Count)
> or worse:
> Buffer := Copy(Buffer, Count+1, Length(Buffer));
FPC trunk supports Delete() and Insert() on dynamic arrays (TBytes is
merely a dynamic array) and Copy() is supported for longer already. You
merely need to adjust the indices to 0-based instead of 1-based.
Delete() and Insert() are also supported by Delphi XE8 and newer I think.
> For adding new data (c: AnsiChar) to the end:
> Buffer := Buffer + c;
The + operator is not yet implemented by default on FPC (neither is
Concat()), but you can easily declare that yourself.
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