Dec. 6, 2012
1:54 p.m.
On Thu, Dec 6, 2012 at 4:50 AM, Shraddha Kamat <sh2008ka@gmail.com> wrote:
Hi,
# define likely(x) __builtin_expect(!!(x), 1) # define unlikely(x) __builtin_expect(!!(x), 0)
I see these !! in the above expressions. Please explain me the meaning of those double exclamations. What is their significance ?
this is c question, right, google is your friend
-- Shraddha
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