Re: ada lapack

[Niklas Holsti <niklas.holsti@tidorum.invalid>]

On 12-08-17 13:27 , Ada novice wrote:
> On Friday, August 17, 2012 10:43:22 AM UTC+1, Niklas Holsti wrote:
> 
>> Change this line to have a ./ at the start:
>>
>>
>>
>> 		./$${file} > $${file}.txt; \
>>
> 
> Thanks. It works!

Good.

> I am curious to know why "make tests" in my earlier
> case was giving me the outputs of the matrices while
> now with the new Makefile, I get only
> 
> Testing  example01
> Testing  example02

   ...

Because the Makefile applies "diff" to compare the actual output from
running e.g. the example01 executable and a reference file in the
"output" subfolder. If the files match, "diff" prints nothing. This is
the "no news is good news" principle -- a sucessful test is silent.

In your first try, the shell did not find the executable, so the actual
output file (./example01.txt) became empty, and "diff" showed all the
lines in the reference file (output/example01.txt) as "difference" lines.

>> The files without a suffix, such as example01, are most likely the
>> binaries, also called executables.
> 
> Ok. On my linux system, these files are also in a different colour from the rest.

That depends on the options you use with the "ls" command. (I always
turn off the "color" option -G and use the suffix-flagging option -F
instead, because I find it more readable.)

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
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