On 2 March 2015 at 12:14, Andrew Haley <aph@xxxxxxxxxx> wrote: > On 03/02/2015 11:08 AM, Manuel López-Ibáñez wrote: >> Actually, the question that I was unsure about and I could not find a >> ready answer in the standard is whether one can use ((double >> *)(&cam_xyz[0][0]))[j] to address the whole multidimensional array. >> The C-FAQ seems to suggest that one cannot, but it is not crystal >> clear in this respect. > > It may not be, but the passage I sent you is. The way I read that passage is that *cam_xyz is of type double[3] and *(*cam_xyz) is of type 'double', but it doesn't say anything about dereferencing the pointer &(*(*cam_xyz)) beyond any limits. This also raises the question of whether is valid to initialize a multidimensional array with memset as memset(&cam_xyz[0][0], 0, sizeof(cam_xyz)).
