On Wednesday, 3 April 2013 at 15:25:22 UTC, Tobias Pankrath wrote:
On Wednesday, 3 April 2013 at 14:47:22 UTC, John Colvin wrote:
On Wednesday, 3 April 2013 at 11:05:06 UTC, Tobias Pankrath
wrote:
basic idea.
---
T x;
T* px = new T(x);
---
int x
int* px = new int(x); // fails
---
I need to do this for structs and basic types. What's the
standard way to do this?
Do you need to use new? i.e. do you need the variable to be
allocated on the heap?
Also, as you've written it, px is not a pointer to x which is
a bit misleading. What is the result you actually want?
I need a fresh T (let's call it t) allocated on the heap and a
pointer (pt) to it and the value of t should be the value of x.
---
T x;
int* pt = new T;
*pt = x;
---
Maybe I'll just do this.
int* pt = new T; //that will only compile if T is int. I assume
you meant:
T* pt = new T;
Other than that, what you have done there should work.
To avoid any superfluous initialisation of fields:
import core.memory : malloc;
T x;
T* pt = cast(T*)malloc(T.sizeof);
*pt = x;
note: this is not C malloc, the memory is requested from and
managed by the GC.
