anonymous non-bit-field fields

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1 total messages Started by Ron Guilmette Sun, 19 Mar 1989 21:31

#1761

Author: Ron Guilmette
Date: Sun, 19 Mar 1989 21:31

26 lines
1333 bytes

(I am cross posting this to bug-gcc and bug-g++ since it seems to affect
both compilers).

I just now learned about "unnamed" structure fields.  Somebody on the
net mentioned them so I looked them up in my December 7, 1988 ANSI-C
draft standard.

I like the idea, but the ANSI syntax requires that unnamed fields can only
be bit-fields, not normal fields!  It would make more sense to me allow either,
but that's ANSI for you!

Anyway, GCC (1.33) and G++ (1.34.1) allow either, but even when the
-pedantic switch is used, neither compiler generates an error or warning
when unnamed field are non-bit-fields, as in the example below:

struct s {
	int a;
	int ;		/* ERROR: unnamed field is not a bit field */
	int b;
};

// Ron Guilmette  -  MCC  -  Experimental (parallel) Systems Kit Project
// 3500 West Balcones Center Drive,  Austin, TX  78759  -  (512)338-3740
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