Martin Ling wrote: > > You can't map raw data from the file to a struct like this for at least > > 2 reasons: > > - the compiler is free to add some alignment padding between the struct > > fields which would prevent them to map to the data you expect > > - the data stored in the file may not match the endianness of the host > > trying to read it > > > > To solve this issue, you should use the RL16() and RL32() macro to read > > directly from raw data. (you may need to add a RL64() version of the > > macro) > > Note you can use __attribute((packed))__ on the struct in GCC (and > similar constructs in other compilers), to avoid the first problem.
Don't build that kind of compiler-dependence into software intended for widespread use. Write packing and unpacking functions instead, using those macros. //Peter ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ sigrok-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sigrok-devel
