Recently I have reported problems with using results of stats() as scalars. Today I found that another of my scripts, that used to work in older PDL versions, is failing. The problem is very similar, using one-element piddles in scalar context gives almost random results. Here it is:
pdl> $x = floor(1.3) pdl> p $x 1 pdl> $x += 0.1 pdl> p $x 1.1 pdl> $x = floor(1) pdl> p $x 1 pdl> $x += 0.1 pdl> p $x 1 when taking floor() of an integer number, I cannot increment it afterwards. No problems when I take floor() of a non-integer. I think in this particular case the problem is with the type: pdl> $x = floor(1.1); p $x->info PDL: Double D [] pdl> $x = floor(1); p $x->info PDL: Byte D [] Suddenly, the type is changed and I suppose 'Byte' doesn't take +=0.1. This is a bit random, unexpected and unpredictable. In particular, there is inconsistency: pdl> $x = floor(1); p $x->info PDL: Byte D [] pdl> $y = pdl(1); p $y->info PDL: Double D [] Has something been changed in the recent months (or even years, as we used to use quite old version of PDL for years and only recently upgraded to 2.007) in the way types are converted and one-element piddles are treated in the scalar context? I'm just discovering more and more of my scripts doing weird things... Cheers, Marek
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