BloombergLP::bdlb::BitStringUtil::num1

Return the number of 1 bits in the specified numBits beginning at the specified index in the specified bitString. The behavior is undefined unless bitString has a length of at least index + numBits.

Synopsis

Declared in <bdlb_bitstringutil.h>

static
std::size_t
num1(
    uint64_t const* bitString,
    std::size_t index,
    std::size_t numBits);