Base/core/src-c/bitfield.c

#include <librr/bitfield.h>

inline bool_t rr_is_bit_set(u64_t buffer, usz_t index)
{
    return !!(buffer & (1 << index));
}

inline u64_t rr_set_bit(u64_t buffer, usz_t index)
{
    return buffer | (1 << index);
}

u64_t rr_bitpad_lsb(usz_t count)
{
    u64_t result = 0;
    for(usz_t index = 0; index < count; ++index)
    {
        result |= 1 << index;
    }
    return result;
}

u64_t rr_bitpad_msb(usz_t count)
{
    u64_t result = 0;
    for(usz_t index = 0; index < count; ++index)
    {
        result |= (1 << 63) >> index;
    }
    return result;
}