From owner-freebsd-current  Wed Jan 19  7: 3:16 2000
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To: current@freebsd.org
Subject: sigisempty?
From: asami@cs.berkeley.edu (Satoshi Asami)
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Hi,

How do I test if sigset_t is empty in -current?  The xview sources
have this macro:

#define sigisempty(s)   (!(*(s)))

which is ok for the old sigset_t (unsigned int) but obviously won't
work for the new one since it's a struct.

typedef struct __sigset {
       unsigned int    __bits[_SIG_WORDS];
} sigset_t;

Am I supposed to use a loop to iterate through the __bits and test if
all of them are zero or something?

Thanks,
Satoshi


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