digitalmars.D - Creation of an array which length depens on variables not possible?
- TheDGuy (15/15) Dec 26 2015 Why is this not possible?
- Adam D. Ruppe (7/9) Dec 26 2015 Try:
- TheDGuy (3/13) Dec 26 2015 Thank you very much, it really helped me a lot!
Why is this not possible? GtkAllocation size; widget.getAllocation(size); this.width = size.width; this.height = size.height; int[size.width*size.height*3+1] arr; this.accumulator = arr; nor this: GtkAllocation size; widget.getAllocation(size); this.width = size.width; this.height = size.height; int[this.width*this.height*3+1] arr; this.accumulator = arr; in the constructor?
Dec 26 2015
On Saturday, 26 December 2015 at 18:43:51 UTC, TheDGuy wrote:Why is this not possible? int[size.width*size.height*3+1] arr;Try: auto arr = new int[](size.width*size.height*3+1); The int[x] syntax declares a statically sized array - statically sized meaning it must be known at compile time and thus cannot be variables, along a few other differences. The new array syntax though returns one of variable size.
Dec 26 2015
On Saturday, 26 December 2015 at 18:49:26 UTC, Adam D. Ruppe wrote:On Saturday, 26 December 2015 at 18:43:51 UTC, TheDGuy wrote:Thank you very much, it really helped me a lot!Why is this not possible? int[size.width*size.height*3+1] arr;Try: auto arr = new int[](size.width*size.height*3+1); The int[x] syntax declares a statically sized array - statically sized meaning it must be known at compile time and thus cannot be variables, along a few other differences. The new array syntax though returns one of variable size.
Dec 26 2015