File output and buffering

[Maciej Sobczak <see.my.homepage@gmail.com>]

It seems to me that the file output in standard Ada library is not
buffered:
1. There is no buffer-related operation in the whole library.
2. The semantics of output operations is defined in terms of the
effects on external file.
3. The performance of simple test is consistent with what can be
obtained in equivalent C code that flushes the channel after every
operation (ie. some 15-20x slower than with default buffering).

Let's suppose that I want to add buffering to my output. I can write
the stream type that does the necessary magic, but how can I reuse the
formatting machinery that is already available in Ada.Text_IO and
related packages?

--
Maciej Sobczak * www.msobczak.com * www.inspirel.com

Database Access Library for Ada: www.inspirel.com/soci-ada