• ddos (12/12) Aug 05 2014 alias Vec4f = TVector!(float,4);
• "Marc =?UTF-8?B?U2Now7x0eiI=?= <schuetzm gmx.net> (11/23) Aug 05 2014 Can you show the complete code? I cannot reproduce this with
• Daniel Gibson (2/28) Aug 05 2014 struct vs class?
• ddos (4/30) Aug 05 2014 http://pastebin.com/34sbffSa
• Philippe Sigaud via Digitalmars-d-learn (9/10) Aug 05 2014 Your problem comes from lengthSquared:
• ddos (5/19) Aug 05 2014 i wasn't intentionally creating a functionpointer, i just liked

"ddos" <oggs gmx.at> writes:

alias Vec4f = TVector!(float,4);
alias Vec3f = TVector!(float,3);

class TVector(T,int n)
{
	T[n] val;
...

TVector as class does work as expected, as a struct i get the 
following errors, but why?

struct Vector.TVector!(float, 4).TVector no size yet for forward 
reference
struct Vector.TVector!(float, 3).TVector no size yet for forward 
reference

"Marc =?UTF-8?B?U2Now7x0eiI=?= <schuetzm gmx.net> writes:

On Tuesday, 5 August 2014 at 18:36:35 UTC, ddos wrote:
 alias Vec4f = TVector!(float,4);
 alias Vec3f = TVector!(float,3);

 class TVector(T,int n)
 {
 	T[n] val;
 ...

 TVector as class does work as expected, as a struct i get the 
 following errors, but why?

 struct Vector.TVector!(float, 4).TVector no size yet for 
 forward reference
 struct Vector.TVector!(float, 3).TVector no size yet for 
 forward reference

Can you show the complete code? I cannot reproduce this with 
either latest DMD git, DMD 2.065, or LDC 0.13.0:

     alias Vec4f = TVector!(float,4);
     alias Vec3f = TVector!(float,3);

     struct TVector(T,int n)
     {
         T[n] val;
     }

     Vec3f a;
     Vec4f b;

Daniel Gibson <metalcaedes gmail.com> writes:

Am 05.08.2014 21:13, schrieb "Marc Schütz" <schuetzm gmx.net>":
 On Tuesday, 5 August 2014 at 18:36:35 UTC, ddos wrote:
 alias Vec4f = TVector!(float,4);
 alias Vec3f = TVector!(float,3);

 class TVector(T,int n)
 {
     T[n] val;
 ...

 TVector as class does work as expected, as a struct i get the
 following errors, but why?

 struct Vector.TVector!(float, 4).TVector no size yet for forward
 reference
 struct Vector.TVector!(float, 3).TVector no size yet for forward
 reference

 Can you show the complete code? I cannot reproduce this with either
 latest DMD git, DMD 2.065, or LDC 0.13.0:

      alias Vec4f = TVector!(float,4);
      alias Vec3f = TVector!(float,3);

      struct TVector(T,int n)
      {
          T[n] val;
      }

      Vec3f a;
      Vec4f b;

struct vs class?

"ddos" <oggs gmx.at> writes:

On Tuesday, 5 August 2014 at 19:13:31 UTC, Marc Schütz wrote:
 On Tuesday, 5 August 2014 at 18:36:35 UTC, ddos wrote:
 alias Vec4f = TVector!(float,4);
 alias Vec3f = TVector!(float,3);

 class TVector(T,int n)
 {
 	T[n] val;
 ...

 TVector as class does work as expected, as a struct i get the 
 following errors, but why?

 struct Vector.TVector!(float, 4).TVector no size yet for 
 forward reference
 struct Vector.TVector!(float, 3).TVector no size yet for 
 forward reference

 Can you show the complete code? I cannot reproduce this with 
 either latest DMD git, DMD 2.065, or LDC 0.13.0:

     alias Vec4f = TVector!(float,4);
     alias Vec3f = TVector!(float,3);

     struct TVector(T,int n)
     {
         T[n] val;
     }

     Vec3f a;
     Vec4f b;

http://pastebin.com/34sbffSa
thx for your help :) !
i use DMD 2.065 btw

Philippe Sigaud via Digitalmars-d-learn writes:

 http://pastebin.com/34sbffSa

Your problem comes from lengthSquared:

public auto lengthSquared = function () => val.reduce!((a,b) => a + b*b);

That's an unusual way to define a method. Any reason why you are using
a pointer to a function as a member? Do you need to be able to
redefine it at runtime?

I guess that in this case, the compiler cannot determine its return
type and/or its size?
I'd use:

public auto lengthSquared () { return val.reduce!((a,b) => a + b*b);}

"ddos" <oggs gmx.at> writes:

i wasn't intentionally creating a functionpointer, i just liked 
the syntax x3 ... but i guess i should read into it now :)
thx for you help !

On Tuesday, 5 August 2014 at 19:51:33 UTC, Philippe Sigaud via 
Digitalmars-d-learn wrote:
 http://pastebin.com/34sbffSa

 Your problem comes from lengthSquared:

 public auto lengthSquared = function () => val.reduce!((a,b) => 
 a + b*b);

 That's an unusual way to define a method. Any reason why you 
 are using
 a pointer to a function as a member? Do you need to be able to
 redefine it at runtime?

 I guess that in this case, the compiler cannot determine its 
 return
 type and/or its size?
 I'd use:

 public auto lengthSquared () { return val.reduce!((a,b) => a + 
 b*b);}