findLastSet
Synopsis
Declared in <folly/lang/Bits.h>
template<typename T>
constexpr
unsigned int
findLastSet(T const v);Description
Return the 1‐based index of the most significant bit which is set. For x > 0, findLastSet(x) == 1 + floor(log2(x)).
Return Value
The 1‐based index of the most significant set bit, or 0 if v == 0.
Parameters
Name |
Description |
v |
The integral value to examine. |
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