On Mon, Mar 05, 2012 at 03:53:28PM +0000, William Dunlap wrote: > I haven't used Julia yet, but from my quick reading > of the docs it looks like arguments to functions are > passed by reference and not by value, so functions > can change their arguments. My recollection from when > I first started using S (in the course of a job helping > profs and grad students do statistical programming, c. 1983) > is that not having to worry about in-place algorithms changing > your data gave S a big advantage over Fortran or C. [...]
C also uses Call-by-Value. Fortran I don't know in detail. > While this feature could slow things down and increase > memory code, I felt that it made it easier to write correct > code and to use functions that others had written. Yes, I also think, that call-by-value decreases errors in Code. What I read about Julia it's like MATLAB plus more features for programming. Does matlab also only use call-by-reference? > Does Julia have a const declaration or other > means of controlling or documenting that a given function > will or will not change the data passed into it? I did not explored it in detail so far. Maybe the orig-poster already did this in more depth? Ciao, Oliver ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
