Add {f32,f64}::approx_unchecked_to<Int>
unsafe methods#66841
Merged
bors merged 3 commits intorust-lang:master from SimonSapin:float_round_unchecked_toDec 7, 2019
+471-333
{f32,f64}::approx_unchecked_to<Int>
unsafe methods#66841