On 02.11.2014 12:40, Berend Hasselman wrote:
On 02-11-2014, at 12:20, January Weiner <january.wei...@gmail.com> wrote:
I am building a package that makes a simple visualization. A part of
the code is in C++, and utilizes the functions srand() and rand() for
purposes not related to statistics (introducing random noise in the
visualization). The package compiles without problems on my
workstation(s), but when I submitted it to the winbuilder service, I
got the following weird message:
* checking compiled code ... NOTE
File 'tagcloud/libs/i386/tagcloud.dll':
Found 'rand', possibly from 'rand' (C)
Object: 'overlap.o'
Found 'srand', possibly from 'srand' (C)
Object: 'overlap.o'
File 'tagcloud/libs/x64/tagcloud.dll':
Found 'rand', possibly from 'rand' (C)
Object: 'overlap.o'
Found 'srand', possibly from 'srand' (C)
Object: 'overlap.o'
Compiled code should not call entry points which might terminate R nor
write to stdout/stderr instead of to the console, nor the C RNG.
To the best of my knowledge, I don't see where in the code I "call
entry points which might terminate R" or "write to stdout/stderr", but
then, if I remove the calls to rand/srand, this message disappears.
Which version of R on your workstation?
Your code should also not call the C RNG (rand and srand) as the message
clearly states.
Right: set.seed() only controls R'd RNG, hence use that one so that your
users can conveniently reproduce their visualizations with your package.
Best,
Uwe Ligges
Berend
You can review the package her:e
http://win-builder.r-project.org/toy6frr57aCU/
Kind regards,
January
--
-------- January Weiner --------------------------------------
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