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N3242 8.5.1/15 -- braced union declarations limited only to first member

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Taken from:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf

----------
8.5.1 / 15 When a union is initialized with a brace-enclosed initializer,
the braces shall only contain an initializer-clause for the first non-
static data member of the union.

[ Example:
union u { int a; const char* b; };
u a = { 1 };
u b = a;
u c = 1; // error
u d = { 0, "asdf" }; // error
u e = { "asdf" }; // error
--end example ]

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Why?

Such a decision severely hobbles the use of unions, limiting their full
functionality to run-time code, and in a case where compile-time non-first
member initialization is more than just possible, it's almost trivial.

I'm thinkin' ... I can't see the reasonin' ... Please help me out.

Gracias. :-)

Best regards,
Rick C. Hodgin


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N3242 8.5.1/15 -- braced union declarations limited only to first member rick.c.hodgin@googlemail.com - 2014-08-30 13:29 -0600
  Re: N3242 8.5.1/15 -- braced union declarations limited only to first member "Rick C. Hodgin" <rick.c.hodgin@googlemail.com> - 2014-09-16 21:01 -0600
    Re: N3242 8.5.1/15 -- braced union declarations limited only to first member Philip Guenther <guenther@googlemail.com> - 2014-09-17 19:29 -0600
      Re: N3242 8.5.1/15 -- braced union declarations limited only to first member "Rick C. Hodgin" <rick.c.hodgin@googlemail.com> - 2014-09-19 01:06 -0600
        Re: N3242 8.5.1/15 -- braced union declarations limited only to first member "Rick C. Hodgin" <rick.c.hodgin@googlemail.com> - 2014-09-20 01:37 -0600
          Re: N3242 8.5.1/15 -- braced union declarations limited only to first member Martin Bonner <martinfrompi@yahoo.co.uk> - 2014-09-23 14:52 -0600
            Re: N3242 8.5.1/15 -- braced union declarations limited only to first member "Rick C. Hodgin" <rick.c.hodgin@googlemail.com> - 2014-09-24 16:30 -0600
      Re: N3242 8.5.1/15 -- braced union declarations limited only to first  member James Kuyper <jameskuyper@verizon.net> - 2014-09-19 01:06 -0600
      Re: N3242 8.5.1/15 -- braced union declarations limited only to first member Francis Glassborow <Francis.glassborow@btinternet.com> - 2014-09-19 01:06 -0600

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