Deserialize bytes

deserializer.cpp

#undef be16toh

void deserialize_u32(uint32_t &value, const uint8_t *bytes)
{
    value =
        (static_cast<uint32_t>(bytes[0]) << 24) |
        (bytes[1] << 16) | (bytes[2] << 8) | bytes[3];
}

void deserialize_u24(uint32_t &value, const uint8_t *bytes)
{
    value =
        (static_cast<uint32_t>(bytes[0]) << 16) |
        (bytes[1] << 8) | bytes[2];
}

uint16_t be16toh(const uint8_t *bytes)
{
    return = (static_cast<uint16_t>(bytes[0]) << 8) | bytes[1];
}

// Returns number of loose bytes
int deserialize_u32(uint32_t *dest, const uint8_t *bytes, int n)
{
    while (n > 3) {
        deserialize_u32(*dest++, bytes);
        bytes += 4;
        n -= 4;
    }
    return n;
}

// Returns number of loose bytes
int deserialize_u24(uint32_t *dest, const uint8_t *bytes, int n)
{
    while (n > 2) {
        deserialize_u24(*dest++, bytes);
        bytes += 3;
        n -= 3;
    }
    return n;
}

// Returns number of encoded values
int be16toh(uint16_t *dest, const uint8_t *bytes, int n)
{     
    int i = 0;
    for (; n > 1; n-=2, i++) {
        dest[i] = be16toh(bytes);
        bytes += 2;
    }
    return i;
}