Re: Headers bug? ISO C doesn’t support unnamed structs/unions
On Sep 07 2009, Cyril Brulebois wrote:
> | -pedantic-errors -Werror -Wall -Wfatal-errors -Wwrite-strings -O2
The problem is with pedantic.
It can be a good thing to use "-ansi -pedantic" while compiling
alpha/very rough development versions, so that the compiler keep you on
your place if:
* you're programming by trial-and-error :)
* you're aiming at, say, C89.
OTOH, it is not such a good idea to turn it on for production code,
since the compiler may disable some intrinsics (functions of which it
has "a deep understanding", especially regarding the scheduling and
register uses) which may lead to slower code. See, for instance:
http://gcc.gnu.org/onlinedocs/gcc-4.4.1/gcc/Other-Builtins.html#Other-Builtins
Regards, Rogério Brito.
P.S.: Actually, my post is not entirely accurate, but this is the gist
of the idea.
--
Rogério Brito : rbrito@{mackenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org
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