Segfault with fft on Linux

[Abe Solberg]

Hi all,

I am trying to write a version of Mizer size spectrum model (thanks to the authors of that package) in RTMB and am running into an issue on mac and linux machines.  

On my windows machine, the TMB object compiles without issue and mostly works (expect another post on that eventually), but on both linux and mac machines i get a segfault error when trying to do the fft transformation. 

Hopefully this is just me doing something incorrectly, but I've attached an example here where I've attempted to isolate the issue. 

Thanks in advance,

Abe

[Kasper Kristensen]

You've found a bug in RTMB. For some reason, the multivariate RTMB::fft doesn't work in the special case when one of the dimensions is 1.

For now, just remove 'base::t' from this line:

RTMB::fft(base::t(prey[i, ])) / (length(w_full))

to avoid setting the redundant dimension attribute.

[Abe Solberg]

Cheers. Thank you for the quick response. That fixed it.

Thanks again,

Abe

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