Date: Tue, 13 Sep 2016 20:41:44 +0000 From: Daniel Shahaf <danielsh@apache.org> To: Cedric Blancher <cedric.blancher@gmail.com> Cc: twilight <pipfstarrd@openmailbox.org>, freebsd-hackers@freebsd.org Subject: Re: What is the point in expression: !!var ? Message-ID: <20160913204144.GA13610@fujitsu.shahaf.local2> In-Reply-To: <CALXu0UcLaNgEyd_SLxSRDMDv6kjsDKpPDRc%2BHHJfyAv-YAmYkQ@mail.gmail.com> References: <7bf5cd37-6436-8cec-74e3-f0856bcc807c@openmailbox.org> <CALXu0UcLaNgEyd_SLxSRDMDv6kjsDKpPDRc%2BHHJfyAv-YAmYkQ@mail.gmail.com>
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Cedric Blancher wrote on Tue, Sep 13, 2016 at 22:10:24 +0200: > The point is to transform the value of a (any kind, like pointer) to a > Boolean value. In more words: «!!x» is equivalent to «(x ? 1 : 0)». Daniel
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