Sturcts with constructor (dmd1.x)

[Strtr]

bearophile Wrote:

> grauzone:
> > > Struct constructors are probably the D2 feature I miss more in D1 :-)
> > 
> > Why?
> 
> During optimization phases I sometimes want to convert classes into structs, and then I want to allocate some of those struct instances on the heap and others on the stack. A struct constructor allows me to change as little as possible to the code that uses those new structs.

How much of an overhead is a call to a struct instance compared to a call to a object?