C++ (Cpp) UCharBuffer::begin Examples

Example #1

File: utils.cpp Project: mariuz/firebird

// converts bytes to BASE64 representation
void base64(Firebird::string& b64, const Firebird::UCharBuffer& bin)
{
	b64.erase();
	const unsigned char* f = bin.begin();
	for (int i = bin.getCount(); i > 0; i -= 3, f += 3)
	{
		if (i >= 3)
		{
			const ULONG l = (ULONG(f[0]) << 16) | (ULONG(f[1]) <<  8) | f[2];
			b64 += conv_bin2ascii(l >> 18);
			b64 += conv_bin2ascii(l >> 12);
			b64 += conv_bin2ascii(l >> 6);
			b64 += conv_bin2ascii(l);
		}
		else
		{
			ULONG l = ULONG(f[0]) << 16;
			if (i == 2)
				l |= (ULONG(f[1]) << 8);
			b64 += conv_bin2ascii(l >> 18);
			b64 += conv_bin2ascii(l >> 12);
			b64 += (i == 1 ? '=' : conv_bin2ascii(l >> 6));
			b64 += '=';
		}
	}

Example #2

File: BigInteger.cpp Project: Alexpux/firebird

	void BigInteger::random(int numBytes)
	{
		Firebird::UCharBuffer b;
		Firebird::GenerateRandomBytes(b.getBuffer(numBytes), numBytes);
		assign(numBytes, b.begin());
	}

Example #3

File: BigInteger.cpp Project: Alexpux/firebird

	BigInteger::BigInteger(const Firebird::UCharBuffer& val)
	{
		CHECK_MP(mp_init(&t));
		assign(val.getCount(), val.begin());
	}