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digitalmars.D - initializing static rectangular arrays

reply llee <llee goucher.edu> writes:
how do you initialize a static multidimensional array? I tried the following,
but it did not work.

float[3][4] array =
[
   [1.1, 1.2, 1.3],
   [2.1, 2.2, 2.3],
   [3.1, 3.2, 3.3]
];
Nov 17 2007
next sibling parent reply "Janice Caron" <caron800 googlemail.com> writes:
On 11/17/07, llee <llee goucher.edu> wrote:

 how do you initialize a static multidimensional array? I tried the following,
but it did not work.

 float[3][4] array =
 [
    [1.1, 1.2, 1.3],
    [2.1, 2.2, 2.3],
    [3.1, 3.2, 3.3]
 ];



Isn't that a 3x3 array, not a 3x4 array?

Anyway, I think the solution to your dilemma is the keyword "const".
(Or if that doesn't work, try "static").
Nov 17 2007
parent reply llee <llee goucher.edu> writes:
Janice Caron Wrote:


 On 11/17/07, llee <llee goucher.edu> wrote:

 how do you initialize a static multidimensional array? I tried the following,
but it did not work.

 float[3][4] array =
 [
    [1.1, 1.2, 1.3],
    [2.1, 2.2, 2.3],
    [3.1, 3.2, 3.3]
 ];



 Isn't that a 3x3 array, not a 3x4 array?
 
 Anyway, I think the solution to your dilemma is the keyword "const".
 (Or if that doesn't work, try "static").



didn't work. I tried:

	const float[3][4] elements = 
	[
		[1.1, 1.2, 1.3, 1.4],
		[2.1, 2.2, 2.3, 2.4],
		[3.1, 3.2, 3.3, 3.4]		
	];

and the compiler returned "too many initializers" for each nested array.
Nov 17 2007
parent llee <llee goucher.edu> writes:
naryl Wrote:


 On Sun, 18 Nov 2007 00:54:31 +0300, llee <llee goucher.edu> wrote:
 

 Janice Caron Wrote:


 On 11/17/07, llee <llee goucher.edu> wrote:

 how do you initialize a static multidimensional array? I tried the  




 float[3][4] array =
 [
    [1.1, 1.2, 1.3],
    [2.1, 2.2, 2.3],
    [3.1, 3.2, 3.3]
 ];



 Isn't that a 3x3 array, not a 3x4 array?

 Anyway, I think the solution to your dilemma is the keyword "const".
 (Or if that doesn't work, try "static").



 didn't work. I tried:

 	const float[3][4] elements =
 	[
 		[1.1, 1.2, 1.3, 1.4],
 		[2.1, 2.2, 2.3, 2.4],
 		[3.1, 3.2, 3.3, 3.4]		
 	];

 and the compiler returned "too many initializers" for each nested array.



 float[3][4] is really an array of 4 arrays of 3 floats.  
 http://www.digitalmars.com/d/1.0/arrays.html
 
 You can initialize it like that:
 	float[3][4] elements =
          [
   	    [1.1, 1.2, 1.3],
              [2.1, 2.2, 2.3],
              [3.1, 3.2, 3.3],
              [4.1, 4.2, 4.3]
          ];



thanks for the help. The following worked.

	const float[3][4] elements =
	[
		[1.1, 1.2, 1.3],
		[2.1, 2.2, 2.3],
		[3.1, 3.2, 3.3],
		[4.1, 4.2, 4.3]
	];
Nov 17 2007
prev sibling next sibling parent naryl <cy ngs.ru> writes:
On Sun, 18 Nov 2007 00:54:31 +0300, llee <llee goucher.edu> wrote:


 Janice Caron Wrote:


 On 11/17/07, llee <llee goucher.edu> wrote:

 how do you initialize a static multidimensional array? I tried the =











 following, but it did not work.

 float[3][4] array =3D
 [
    [1.1, 1.2, 1.3],
    [2.1, 2.2, 2.3],
    [3.1, 3.2, 3.3]
 ];



 Isn't that a 3x3 array, not a 3x4 array?

 Anyway, I think the solution to your dilemma is the keyword "const".
 (Or if that doesn't work, try "static").



 didn't work. I tried:

 	const float[3][4] elements =3D
 	[
 		[1.1, 1.2, 1.3, 1.4],
 		[2.1, 2.2, 2.3, 2.4],
 		[3.1, 3.2, 3.3, 3.4]		=




 	];

 and the compiler returned "too many initializers" for each nested arra=




float[3][4] is really an array of 4 arrays of 3 floats.  =

http://www.digitalmars.com/d/1.0/arrays.html

You can initialize it like that:
	float[3][4] elements =3D
         [
  	    [1.1, 1.2, 1.3],
             [2.1, 2.2, 2.3],
             [3.1, 3.2, 3.3],
             [4.1, 4.2, 4.3]
         ];
Nov 17 2007
prev sibling parent "Janice Caron" <caron800 googlemail.com> writes:
On 11/17/07, naryl <cy ngs.ru> wrote:

 You can initialize it like that:
         float[3][4] elements =
          [
             [1.1, 1.2, 1.3],
              [2.1, 2.2, 2.3],
              [3.1, 3.2, 3.3],
              [4.1, 4.2, 4.3]
          ];



Yes, because D puts the array dimension on the type, not the variable.
(But you can do it the C way if you want).

So
    float elements[4][3];
==
    float[3] elements[4];
==
    float[3][4] elements;

(At least, I think that's right. Disclaimer: I don't have a compiler
handy right now).
Nov 17 2007