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Answers and rating deltas for

What does `if(!*str) ...` mean for a `char* str`?

Author Votes Δ
evading 6 +4.81
Sourav Ghosh 4 +0.80
Niall 1 -0.85
Gopi 1 -0.50
Last visited: Feb 15, 2016, 3:20:54 AM