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digitalmars.D.learn - how to initialize an array of struct

reply westcity <westcity1973 hotmail.com> writes:
My code is as following:

struct Point {
        float x, y, z ;
};

int main ()
{
        Point[3] pts = [
                {1.0, 0.0, 0.0} ,
                {0.0, 1.0, 0.0} ,
                {0.0, 0.0, 1.0}
        ];

        return 0 ;
}

But, the compiler report "Error: array initializers as expressions are not
allowed".

Then, how do I initialize an array of struct ?
Feb 12 2009
next sibling parent reply Frits van Bommel <fvbommel REMwOVExCAPSs.nl> writes:
westcity wrote:

 My code is as following:
 
 struct Point {
         float x, y, z ;
 };
 
 int main ()
 {
         Point[3] pts = [
                 {1.0, 0.0, 0.0} ,
                 {0.0, 1.0, 0.0} ,
                 {0.0, 0.0, 1.0}
         ];
 
         return 0 ;
 }
 
 But, the compiler report "Error: array initializers as expressions are not
allowed".



That message's pretty messed up: array initializers look like [1.0, 0.0, 
0.0] in D.


 Then, how do I initialize an array of struct ? 



Replacing the middle lines with these works:
                 Point(1.0, 0.0, 0.0) ,
                 Point(0.0, 1.0, 0.0) ,
                 Point(0.0, 0.0, 1.0)
Feb 12 2009
parent westcity <westcity1973 hotmail.com> writes:
Frits van Bommel дµ½:


 westcity wrote:

 My code is as following:
 
 struct Point {
         float x, y, z ;
 };
 
 int main ()
 {
         Point[3] pts = [
                 {1.0, 0.0, 0.0} ,
                 {0.0, 1.0, 0.0} ,
                 {0.0, 0.0, 1.0}
         ];
 
         return 0 ;
 }
 
 But, the compiler report "Error: array initializers as expressions are not
allowed".



 That message's pretty messed up: array initializers look like [1.0, 0.0, 
 0.0] in D.
 

 Then, how do I initialize an array of struct ? 



 Replacing the middle lines with these works:
                  Point(1.0, 0.0, 0.0) ,
                  Point(0.0, 1.0, 0.0) ,
                  Point(0.0, 0.0, 1.0)
Feb 12 2009
prev sibling parent reply bearophile <bearophileHUGS lycos.com> writes:
westcity Wrote:

 But, the compiler report "Error: array initializers as expressions are not
allowed".
 Then, how do I initialize an array of struct ? 



Move the definition out of main (note that ; after the struct isn't required):

struct Point {
    float x, y, z;
}

Point[3] pts = [{1.0, 0.0, 0.0},
                {0.0, 1.0, 0.0},
                {0.0, 0.0, 1.0}];

void main () {}

Bye,
bearophile
Feb 12 2009
next sibling parent reply Frits van Bommel <fvbommel REMwOVExCAPSs.nl> writes:
bearophile wrote:

 westcity Wrote:

 But, the compiler report "Error: array initializers as expressions are not
allowed".
 Then, how do I initialize an array of struct ? 



 Move the definition out of main (note that ; after the struct isn't required):
 
 struct Point {
     float x, y, z;
 }
 
 Point[3] pts = [{1.0, 0.0, 0.0},
                 {0.0, 1.0, 0.0},
                 {0.0, 0.0, 1.0}];
 
 void main () {}



The fact that *does* compile just makes the error message all the more 
crazy...
Feb 12 2009
parent torhu <no spam.invalid> writes:
On 12.02.2009 15:16, Frits van Bommel wrote:

 bearophile wrote:

  westcity Wrote:

  But, the compiler report "Error: array initializers as expressions are not
allowed".
  Then, how do I initialize an array of struct ?



  Move the definition out of main (note that ; after the struct isn't required):

  struct Point {
      float x, y, z;
  }

  Point[3] pts = [{1.0, 0.0, 0.0},
                  {0.0, 1.0, 0.0},
                  {0.0, 0.0, 1.0}];

  void main () {}



 The fact that *does* compile just makes the error message all the more
 crazy...



It should compile inside of main if declared static.  It's just the 
error message that's a bit off.
Feb 12 2009
prev sibling parent westcity <westcity1973 hotmail.com> writes:
bearophile дµ½:


 westcity Wrote:

 But, the compiler report "Error: array initializers as expressions are not
allowed".
 Then, how do I initialize an array of struct ? 



 Move the definition out of main (note that ; after the struct isn't required):
 
 struct Point {
     float x, y, z;
 }
 
 Point[3] pts = [{1.0, 0.0, 0.0},
                 {0.0, 1.0, 0.0},
                 {0.0, 0.0, 1.0}];
 
 void main () {}
 
 Bye,
 bearophile
Feb 13 2009