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// Copyright 2014 Sonia Keys
// License MIT: http://opensource.org/licenses/MIT
// +build !386,!arm
package graph
const (
wordSize = 64
wordExp = 6 // 2^6 = 64
)
// reference: http://graphics.stanford.edu/~seander/bithacks.html
const deBruijnMultiple = 0x03f79d71b4ca8b09
const deBruijnShift = 58
var deBruijnBits = []int{
0, 1, 56, 2, 57, 49, 28, 3, 61, 58, 42, 50, 38, 29, 17, 4,
62, 47, 59, 36, 45, 43, 51, 22, 53, 39, 33, 30, 24, 18, 12, 5,
63, 55, 48, 27, 60, 41, 37, 16, 46, 35, 44, 21, 52, 32, 23, 11,
54, 26, 40, 15, 34, 20, 31, 10, 25, 14, 19, 9, 13, 8, 7, 6,
}
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