On 2013-05-30 15:36, Aaron Ballman wrote:
Microsoft has a language extension which allows union members to be
references. What's more, they use this language extension in their
ATL header files (which come as part of MFC and the Win32 SDK).
Basically, they have code like this:
struct s {
union {
foo *fp;
foo &fr;
};
s( foo &f ) : fr( f ) {}
s( foo *f ) : fp( f ) {}
};
Seriously, what's wrong with
foo *fp;
s( foo &f) : fp( &f ) {}
? I'm really curious about what motivated the original authors to write
this code.
Sebastian
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