Hello, I just read the HURD hacking guide, which is for me a very nice introduction into HURD programming.
I found a paragraph which was quite confusing to me: it's the one which describes the function 'io_read()' from the sample program 'dump.c' in the section 6.1 "Writing a file to standard output". Confusing was, that you refer to the definition in the file $(HURD)/hurd/io_defs.h and state that there's one argument less defined as you use (and not the last one, BTW): this wouldn't work in (ANSI) C, as a mismatch between a function's prototype and usage would be reported by the compiler. In fact, the arguments are all in the definition file. Maybe the io.h file shows another definition - but I couldn't check this as I don't yet have a HURD system in place. Anyway, I still doubt this works, when the additional argument is placed somewhere else than at last. Anyway, I'd like to suggest to expand this paragraph to include some description about the definition file 'io_defs.h', the generation of the header file 'io.h' and th ebehaviour of MiG (which I suppose is used for that), to demonstrate how these parts of HURD work together - this would be very helpfull for HURD newbies like me - or at least you should refer to another document which describes this already (with the same or a very similar example). I inserted some comments in the 'hhg.texi' file to help you find the place I mean. BTW: I also corrected two typos in the 'hhg.texi' file. Please find attached the output of diff -u hhg.texi hhg.texi.orig. Thanks for your great work Best regards Christophe -- +-----------------------------------------------------+ | Christophe A. Gévaudan --> mailto:[EMAIL PROTECTED] | +-----------------------------------------------------+
diff_-u_hhg.texi_hhg.texi.orig.output
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