INNER CODE UNIT · C++

need

7thSamurai/steganography · src/sha256.cpp:40

        std::uint64_t need = 64 - last_size;
        std::copy(buffer, buffer + need, last_data + last_size);

        buffer += need;
        size   -= need;

        last_size = 0;
        process_chunk(last_data);
    }

    while (size >= 64) {
        process_chunk(buffer);

        buffer += 64;
        size   -= 64;
    }

    std::copy(buffer, buffer + size, last_data + last_size);

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