c/10406: Suggestion for variable attribute "default"

[Benjamin Kalytta]

>Number:         10406
>Category:       c
>Synopsis:       Suggestion for variable attribute "default"
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          support
>Submitter-Id:   net
>Arrival-Date:   Mon Apr 14 21:46:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Benjamin Kalytta <bkausbk@web.de>
>Release:        VERSION INDEPENDENT
>Organization:
>Environment:
EVERYTHING
>Description:
This is a suggestion for extending gcc syntax.
There should be "default" variable attribute.
Example:

typedef union _CPU_REG_64{
    long long int QW __attribute__((default));
    long int DW[2]
    short int W[4];
    char HW[8] 
} CPU_REG_64;

CPU_REG_64 Reg;

Reg=0x1234567890abcdef;

would be the same as ...

Reg.QW=0x1234567890abcdef;

because QW is defined as "default".

Only one "deafult" variable could be assigned within a struct/union.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: