[Bug c/40136] New: Initializing a union whose first member is an anonymous struct

[Bug c/40136] New: Initializing a union whose first member is an anonymous struct

[markleone at gmail dot com]

Not sure if this is a bug or a standards interpretation issue.  Consider the
following union, whose first member is an anonymous struct:

union Foo {
    struct { float a,b,c; };
    const char* x;
};

icc (10.1) permits initialization of the first member of the union:

Foo foo = { .0f, .0f, .0f };

gcc (4.0.1) doesn't permit that, but does permit the following, which I believe
should not be accepted:

Foo foo = { "foo" };


-- 
           Summary: Initializing a union whose first member is an anonymous
                    struct
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: markleone at gmail dot com
  GCC host triplet: i686-apple-darwin9-gcc-4.0.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40136

[Bug c/40136] Initializing a union whose first member is an anonymous struct

[hjl dot tools at gmail dot com]

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------- Comment #1 from hjl dot tools at gmail dot com  2009-05-14 00:42 -------
4.0 branch is closed. Gcc 4.1.2 gave

[hjl@gnu-3 tmp]$ cat u.cc
union Foo {
    struct { float a,b,c; };
    const char* x;
};

Foo foo = { .0f, .0f, .0f };
Foo foo1 = { "foo" };
[hjl@gnu-3 tmp]$ gcc -c u.cc
u.cc:7: error: cannot convert ‘const char*’ to ‘float’ in initialization
[hjl@gnu-3 tmp]$ 


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |WONTFIX


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40136