Re: How to represent struct with trailing array member

[Dibyendu Majumdar via Digitalmars-d-learn]

On Friday, 22 January 2016 at 01:53:53 UTC, Chris Wright wrote:

On Thu, 21 Jan 2016 21:52:06 +0000, Dibyendu Majumdar wrote:

Hi

I have C code where the struct has a trailing array member:

struct matrix {
   int rows;
   int cols;
   double data[1];
};

D has bounds checking, which makes this awkward. You would be able to access the data using:

  struct matrix {
    int rows, cols;
    double[] data() {
      void* p = &this;
      p += this.sizeof;
      return (cast(double*)p)[0 .. rows * cols];
    }
  }

Right - I should use slices in other words.

Thanks