../../.cargo/katex-header.html
pub fn log2(n: usize) -> u32
Returns base 2 logarithm of n, where n is a power of two.
n
Panics if n is not a power of two.
assert_eq!(log2(1), 0); assert_eq!(log2(16), 4); assert_eq!(log2(1 << 20), 20); assert_eq!(log2(2usize.pow(20)), 20);