Re: C structure analyzer ("Reflection" in C?)

phollingsworth@sbsintl.com writes:
> > that uses a large number of C structures. The exchange supplies C
> > header files that describe structures which define the format of the
> > input and output messages. These header files provide structures that
> > define the message format of blocks of bytes that are sent to, and
> > received from, the exchange.
> >
> > Does anybody know of a tool that I could use that converts the C
> > structure definitions into some other source file that has each data
> > member name, byte offset, size etc so that I could make a program to
> > dynamically compose these "structures"?




What about the compiler itself ?


#define OFFSET( struct, member) unsigned( ((struct*)NULL)->member) -
NULL)


// print member name, size and offset:


#define DUMP( os, struct, member) \
os << #member <<" : size=" << sizeof(member) << "\n" \
                                            << : ofs =" << OFFSET( struct, member) "\n" \


main()
{
struct S { int a,b; char c[10];} // or any other struct


DUMP( cout, S, a);
DUMP( cout, S, b);
DUMP( cout, S, c);
}


or something like that. Should print your table


volker

Return to the comp.compilers page.
Search the comp.compilers archives again.