Re: File output and buffering

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

On 20 Sie, 15:19, Georg Bauhaus <rm.dash-bauh...@futureapps.de> wrote:

> Using the following stupid programs for comparison,
> and using strace, I get 3370 calls to write(2) from C,
> but 50_000 from both C++ and Ada.

The C++ part can be explained by the fact that you did not use it
properly.

>         std::cout << s << std::endl;

Try this instead:

std::cout << s << '\n';

The difference is that std::endl performs *two* actions on the given
stream: it inserts the newline and... flushes. If you intend to only
insert the newline character, do what you mean. It is even less
typing.

(yes, 99% of "benchmarks" available on the web are broken for the same
reason)

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

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