+chandlerc, richardsmith, klimek, dgregor Yes, it's really my patch, but I'm not really sure if we want to fix this.
Any idea of whether we should care about this behavior or not? On Wed, Aug 29, 2012 at 5:48 PM, Alexander Kornienko <[email protected]>wrote: > I'm not really sure if that was my patch, but I'm looking into it now. > > Anyone else has any preferences except compatibility with gcc? > > > On Wed, Aug 29, 2012 at 5:16 PM, Eli Friedman <[email protected]>wrote: > >> On Wed, Aug 29, 2012 at 4:40 PM, Alexander Kornienko <[email protected]> >> wrote: >> > No, there was no intention to change behavior. But could you provide >> more >> > details on this? >> >> Just compile it with clang; before, it would fail to compile: >> [...]gcc-4_2-testsuite/src/gcc.dg/cpp/mac-dir-1.c:27:15: error: too >> many arguments provided to function-like macro invocation >> if (1 != f(2 >> ^ >> [...]/gcc-4_2-testsuite/src/gcc.dg/cpp/mac-dir-1.c:27:15: error: use >> of undeclared identifier 'f' >> >> With your patch, it compiles without errors, but the compiled program >> aborts. For comparison, with gcc, the program compiles and runs >> successfully. (I'm pretty sure this is all undefined behavior per >> C99, but it would be nice to be consistent with gcc.) >> >> -Eli >> > > > > -- > Regards, > Alex > -- Regards, Alex
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