Return numBits bits beginning at index as low‐order return bits.

Synopsis

Declared in <bdlc_bitarray.h>

uint64_t
bits(
    std::size_t index,
    std::size_t numBits) const;

Description

Return the specified numBits beginning at the specified index in this array as the low‐order bits of the returned value. The behavior is undefined unless numBits <= sizeof(uint64_t) * CHAR_BIT and index + numBits <= length().

Return Value

requested bits as the low‐order bits of the returned value

Parameters

Name

Description

index

starting bit position to read

numBits

number of bits to return

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