Method Decode

src/cryptlib/integer.cpp:1363–1384

}

void Integer::Decode(const byte *input, unsigned int inputLen, Signedness s)
{
    sign = ((s==SIGNED) && (input[0] & 0x80)) ? NEGATIVE : POSITIVE;

    while (input[0]==0 && inputLen>0)
    {
        input++;
        inputLen--;
    }

    reg.CleanNew(RoundupSize(bytesToWords(inputLen)));

    for (unsigned i=0; i<inputLen; i++)
        reg[i/WORD_SIZE] |= input[inputLen-1-i] << (i%WORD_SIZE)*8;

    if (sign == NEGATIVE)
    {
        for (unsigned i=inputLen; i<reg.size*WORD_SIZE; i++)
            reg[i/WORD_SIZE] |= 0xff << (i%WORD_SIZE)*8;
        TwosComplement(reg, reg.size);
    }
}

unsigned int Integer::MinEncodedSize(Signedness signedness) const
{