Re: Reading and writing a big file in Ada (GNAT) on Windows XP

[george@gentoo.org]

Fionn Mac Cumhaill wrote:
> All it does is read lines in a loop from a text file with
> Ada.Text_IO.Get_Line, does minor modifications on about 80% of the
> lines that it reads, and writes the lines to an output file with
> Put_Line.
Looks like a perfect task for sed utility to me. Even if sed does not
do all you need you can at the very least check some simple sed
transformation on your data, which should give you an estimate of what
run times you can expect with your file.
I am not familiar with MinGW environment. If it is anything like
CygWin then you should be able to run GNU tools and perform that test
with sed. At least this should answer the

> Do I have an Ada problem, a GNAT problem, or a MinGW problem?

(and CygWin does tend to be slower than native computation, however I
used it only a few times).


George