------- Comment #4 from joseph at codesourcery dot com 2007-10-26 14:45 ------- Subject: Re: New: Empty macro definitions not considered equal
On Fri, 26 Oct 2007, rguenth at gcc dot gnu dot org wrote: > #define A(a) > #define A(b) > > g++-4.3 -S t.C > t.C:2:1: error: "A" redefined > t.C:1:1: error: this is the location of the previous definition > > We check the parameter names before the expansion, but if the expansion is > empty in both cases there is no need to warn about different names. Both C and C++ require diagnostics here, my interpretation being that they are required even if the only spelling difference is a different UCN for the same identifier (bug 9449 comment 39). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33907
