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Add util::is_pow2

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This commit is contained in:
Nikita Lisitsa 2025-08-29 16:39:19 +03:00
parent fa214ed956
commit d2f35276bf
1 changed files with 8 additions and 1 deletions
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9
libs/util/include/psemek/util/bits.hpp
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@ -5,8 +5,15 @@
namespace psemek::util namespace psemek::util
{ {
// log2 rounded down template <typename T>
bool is_pow2(T x)
{
static_assert(std::is_integral_v<T>);
return (x > 0) && ((x & (x - 1)) == 0);
}
// log2 rounded down
template <typename T> template <typename T>
T log2(T x) T log2(T x)
{ {