Le lundi 23 mars 2015 à 05:50 -0700, Daniel Carrera a écrit :
> Dear all,
>
>
> For me personally my biggest irritation with Julia is the fact that
> @sprintf() is a macro and not a function. That means that I am always
> forced to write the entire format string in one go. For example, this
> doesn't work:
>
>
> julia> fmt = "%3d"
> "%3d"
>
>
> julia> @sprintf(fmt,a)
> ERROR: @sprintf: first argument must be a format string
>
>
>
>
>
> If the format string is long, or if I want to generate it dynamically,
> this quickly becomes cumbersome and irritating. I would much rather
> have a traditional printf() and sprintf() function that I can use
> naturally:
>
>
> fmt = "%15s - " * repeat(" %7.4f", 17)
>
>
> printf(fmt * "\n", name, vals...)
>
>
>
>
> Yes, it is possible to work around this seemingly arbitrary
> limitation, but that goes against the spirit of writing code that is
> clear and simple. I generally like Julia because the code is clear
> with very little extraneous syntax, so the implementation of @sprintf
> sticks out like a sore thumb.
>
>
> Is there any hope that this might change some day? I really don't
> understand why we have to use a macro here. Even C/C++ can manage to
> have a printf function. Why can't Julia?
There was a discussion about this recently, but it stopped prematurely:
https://github.com/JuliaLang/julia/pull/9243
Regards
