Date: Thu, 3 Oct 1996 19:04:51 +1000 From: Bruce Evans <bde@zeta.org.au> To: bde@zeta.org.au, phk@critter.tfs.com Cc: cvs-all@freefall.freebsd.org, CVS-committers@freefall.freebsd.org, cvs-sys@freefall.freebsd.org, jkh@freefall.freebsd.org, peter@spinner.dialix.com, sos@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/isa syscons.c Message-ID: <199610030904.TAA08440@godzilla.zeta.org.au>
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>One "semi-clean" way of doing it would have been to add a hack to >gcc so that args named __unused_* wasn't complained about, then you >could: > int foo (char * _unused_1) > { > } >to suppress it. This would still require changing thosands of functions. >>The unused attribute doesn't work right in typedefs. Otherwise we >But that's because you cannot say > > sy_call_t > read > { > if (proc != curproc) > ... > } > >(Which I think is a bug in C btw.) That's because the names in prototypes are unused :-). The attributes could be used. >You don't use the typedef when you declare the function. Yes you do. The above is a definition, not a declaration :-). >That's why I have used the SYSCTL_HANDLER_ARGS solution for sysctl. I don't like macros like these, although I introduced similar ones for ddb functions. Bruce
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