Binary I/O for Newbie

[Ali Çehreli]

On 02/27/2012 11:27 AM, Tobias Brandt wrote:
 >> So, something like this should work:
 >> [...]
 >
 > It really depends on how you wrote the file originally. If you
 > know that it is packed, i.e. 10+32+32+32=106 bytes per record,
 > then yes.

You meant 4 bytes per int. :)

 > If you wrote to the file with a C++ program, then I guess the
 > compiler aligned the data so that the whole struct is 128 bytes
 > in size. Technically, the C++ compiler is allowed to do
 > anything short of changing the order of the struct fields.

That is correct for non-POD types. The C++ compiler must treat POD 
structs essentially as if they are C structs.

Ali