Re: #matr~ vs ##matr

Ilya Zakharevich <[email protected]>
Newsgroups gmane.comp.mathematics.pari.devel
Message-ID <[email protected]> 
On Fri, Feb 05, 2021 at 03:10:05PM +0100, Bill Allombert wrote:
> >   Is #matr~ optimized by the compiler?
> 
> No, but you can do either #mat[,1] or matsize(mat)[1]

Well, it was discussed here already: the former is not equivalent to
#matr~.  They differ if #mattr=0.

Thisi is ONE of the reasons why I think ## and ### may be quite
useful.

Ilya
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