[flac-dev] [PATCH] Change test scripts shell to bash, to avoid lack of arithmetic support in dash, which is sh on Ubuntu 10.04

[Jaren Stangret]

>
> Your's is probably better and this is probably an improvement:
>


    awk 'BEGIN { srand(); print int(rand() * 255 + 1) }'
>


Awk's rand seems to be seeded by the current epoch seconds, but in this
> case that doesn't matter.


Looks good to me.  I'd even go as far as implementing your nanosecond
approach as the seed for AWK's 'srand()'.  Maybe set up a tiny function to
use whenever we want a random integer:

random_int () {

awk \

-v nanosecond_seed=$(date +%N) \

'BEGIN {

srand( nanosecond_seed )

print int ( rand() * 255 + 1 )

}'

}

Then we can just call 'random_int' in place of $RANDOM...


On Wed, Mar 20, 2013 at 1:24 AM, Erik de Castro Lopo
<mle+la at mega-nerd.com>wrote:

> Jaren Stangret wrote:
>
> > Erik,
> >
> > I was thinking of doing this:
> > export MALLOC_PERTURB_=$(awk 'BEGIN { srand(); print int(rand() * 32767 %
> > 255 + 1) }')
> >
> > Or would you prefer using 'date'?
>
> Your's is probably better and this is probably an improvement:
>
>     awk 'BEGIN { srand(); print int(rand() * 255 + 1) }'
>
> Awk's rand seems to be seeded by the current epoch seconds, but in this
> case that doesn't matter.
>
> Erik
> --
> ----------------------------------------------------------------------
> Erik de Castro Lopo
> http://www.mega-nerd.com/
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