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Date: Sat, 16 Aug 2008 12:31:00 -0000
From: Philip <snzzbk@gmail.com>
To: gcc-help@gcc.gnu.org
Subject: reinterpret_casting a non-POD
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Given a simple but currently non-POD class such as:

struct Point
{
  float x, y, z;

  Point () {}
  Point (float x_, float y_, float z_): x (x_), y (y_), z (z_) {}
};

Is there any risk involved in the following operations?:

Point p;
float* pp = reinterpret_cast<float*> (&p);

void* buffer = // acquire memory
Point* points = reinterpret_cast<Point*> (buffer);
// do stuff that treats buffer as array of Points
float* floats = reinterpret_cast<float*> (points);

Thanks.