• Zarathustra <adam.chrapkowski gmail.com> Sep 03 2008
• "Denis Koroskin" <2korden gmail.com> Sep 03 2008
• Zarathustra <adam.chrapkowski gmail.com> Sep 03 2008
• Fawzi Mohamed <fmohamed mac.com> Sep 06 2008

Zarathustra <adam.chrapkowski gmail.com> writes:

How to easy set size of multi dimentional dynamic array?

for example:
class Foo{
  private double[][] m_array;

  this(uint o_length, uint o_width){
    // hard way:
    this.m_data.length = o_length;
    for(uint i = 0; i < this.m_array.length; i++){
      this.m_array[i] = new double[o_width];
    }
  }
}

"Denis Koroskin" <2korden gmail.com> writes:

On Wed, 03 Sep 2008 13:45:12 +0400, Zarathustra  
<adam.chrapkowski gmail.com> wrote:

 How to easy set size of multi dimentional dynamic array?

 for example:
 class Foo{
   private double[][] m_array;

   this(uint o_length, uint o_width){
     // hard way:
     this.m_data.length = o_length;
     for(uint i = 0; i < this.m_array.length; i++){
       this.m_array[i] = new double[o_width];
     }
   }
 }



Try this:

this(uint o_length, uint o_width){
   m_array = new double[][](o_length, o_width);
}

Zarathustra <adam.chrapkowski gmail.com> writes:

Denis Koroskin Wrote:

 On Wed, 03 Sep 2008 13:45:12 +0400, Zarathustra  
 <adam.chrapkowski gmail.com> wrote:
 
 How to easy set size of multi dimentional dynamic array?

 for example:
 class Foo{
   private double[][] m_array;

   this(uint o_length, uint o_width){
     // hard way:
     this.m_data.length = o_length;
     for(uint i = 0; i < this.m_array.length; i++){
       this.m_array[i] = new double[o_width];
     }
   }
 }


 
 Try this:
 
 this(uint o_length, uint o_width){
    m_array = new double[][](o_length, o_width);
 }


Great, ;)
Thanks Denis

Fawzi Mohamed <fmohamed mac.com> writes:

On 2008-09-03 13:28:47 +0200, Zarathustra <adam.chrapkowski gmail.com> said:

 Denis Koroskin Wrote:
 
 On Wed, 03 Sep 2008 13:45:12 +0400, Zarathustra
 <adam.chrapkowski gmail.com> wrote:
 
 How to easy set size of multi dimentional dynamic array?
 
 for example:
 class Foo{
 private double[][] m_array;
 
 this(uint o_length, uint o_width){
 // hard way:
 this.m_data.length = o_length;
 for(uint i = 0; i < this.m_array.length; i++){
 this.m_array[i] = new double[o_width];
 }
 }
 }


 
 Try this:
 
 this(uint o_length, uint o_width){
 m_array = new double[][](o_length, o_width);
 }


 Great, ;)
 Thanks Denis


please not that a multidimensional array does not need to be square, so 
it uses a lot of emory more.
You might be interested at my multidimensional array library (tango 
only for the moment).
See http://github.com/fawzi/narray/tree/master/INSTALL.txt

ciao
Fawzi