4 ms·

TIL these two lines (to get an integer absolute value without branching) are _patented_: int const mask = v >> sizeof(int) * CHAR_BIT - 1; r = (v ^ mask) -

by almog 6y ago

TIL these two lines (to get an integer absolute value without branching) are _patented_: int const mask = v >> sizeof(int) * CHAR_BIT - 1; r = (v ^ mask) - mask;