[Bug c++/40076] New: g++ should not permit types to be defined in compound literals

[ian at airs dot com]

This is invalid C++:

struct s1 { int i; } *p;
int i = ((struct s2 { int j; } *)p)->j;

foo.cc:2: error: types may not be defined in casts

By analogy, this should be invalid C++:

int i = (struct s3 { int j; }) { 1 }.j;

Currently g++ accepts it.  Compound literals are an extension to C++, so there
are no documented rules about them.  However, it seems to be that when it comes
to defining new types, they should be consistent with casts.


-- 
           Summary: g++ should not permit types to be defined in compound
                    literals
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: accepts-invalid
          Severity: minor
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ian at airs dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40076