Cedric Roux wrote: > Thomas Martitz wrote: >> Try appending __attribute__((packed)) after the closing } of the structs >> in question. That should disable padding. >> >> Furthermore I recommend using int32_t instead of long, since long is 8 >> bytes on 64-bit Linux systems (hence your code wouldn't work on those). Yes. > > You can also compile with -fpack-struct > (see "man gcc") No, don't. This may break system headers. > But may I suggest that you read your file byte by byte > and feed the structures by reconstructing data with those > bytes (like "x = c1 | (c2 << 8) | (c3 << 16)" or something)? > It is the most portable solution and if your > programs don't spend all of their time in reading these > headers then there is no need to "optimize." (And you > won't waste a lot of time debugging in that direction...) All of this is good advice. Andrew.
