Different random shuffles generated when compiled with gdc than with dmd

[Joseph Rushton Wakeling via Digitalmars-d-learn]

On 30/05/14 22:45, monarch_dodra via Digitalmars-d-learn wrote:
> Didn't you make changes to how and when the global PRNG is popped and accessed
> in randomShuffle? I figured it *could* be an explanation.

No, it was partialShuffle that I tweaked, and that shouldn't affect the results 
here.  There was a bug where partialShuffle would _always_ shuffle the whole of 
the input; but that wouldn't affect the results of randomShuffle itself, which 
calls partialShuffle with the explicit request to shuffle the entire array.

Just to be sure I checked with random/partialShuffle pre- and post- my patches, 
and the result is identical: [1, 8, 4, 2, 0, 7, 5, 6, 9, 3] just as the OP gets 
for dmd.

I think it's more likely that the culprit is either your set of patches to the 
Mersenne Twister, or the patches made to uniform() (which is called by 
partialShuffle).  I'll look more deeply into this.