bearophile wrote:
On the topic of idioms: I may also use an idiom just shown to me by downs, to allow
"passing" "function templates" to other functions:
_sum { T opCall(T)(T[] array) { ... } } _sum sum;
I don't know what this is doing. That code fragment won't compile, and
it isn't showing usage.
Passing an instantiation of a function template is easy -- you just pass
in a function. Passing a template requires an alias template parameter,
I think.
Virtual templates would allow you to use polymorphism in this case, but
that's not going to be considered for quite some time, if at all.
That's another situation where I think some built-in syntactic sugar can be
useful. Do you have ideas regarding a possible syntax/statement?
Bye,
bearophile
