C + + conversion (decimal binary, octal, arbitrary)

decimal Turn binary:

Decimal to Binary
#include <iostream>
using namespace std;

void printbinary (const unsigned int val)
{for
	(int i = i >= 0; i--)
	{
		if (Val & (1 << i)) C9/>cout << "1";
		else
			cout << "0";
	}
}

int main ()
{
	printbinary (1024);
	return 0;
}

Decimal Turn octal

Decimal transfer octal
#include <iostream>
#include <vector>
using namespace std;

int main ()
{
	cout<< "input a number:" <<endl;
	int D;
	Vector<int> Vec;

	cin>>d;
	while (d)
	{
		vec.push_back (d%8);
		D=D/8;
	}

	cout<< "The result is:" <<endl;
	For (Vector<int>::iterator ip=vec.end () -1;ip>=vec.begin ();)
	{
		cout<<*ip--;
	}
	cout<<endl;
	
	return 0;
}

Decimal to arbitrary system:

Decimal conversion to arbitrary feed source
#include <iostream>
using namespace std;

int main ()
{
	long n;
	int p,c,m=0,s[100];
	cout<< "Enter the number to convert:" <<endl;
	cin>>n;
	cout<< "Enter the system to convert:" <<endl;
	cin>>p;

	cout<< "(" <<n<< ") 10=" << "(";

	while (n!=0)//conversion, the result is stored in the array s[m]
	{
		c=n%p;
		n=n/p;
		M++;s[m]=c;   Put the remainder in order into array s[m]
	} for

	(int k=m;k>=1;k--)//output converted sequence
	{
		if (s[k]>=10)///If 16 is the output of the corresponding letter
			cout<< (char) (s[k]+55);
		else         //Otherwise direct output digital
			cout<<s[k];
	}

	cout<< ")" <<p<<endl;

	return 0;
}

implements eight, hexadecimal output through library functions:

#include <iostream>
using namespace std;

int main ()
{
	int test=64;
	cout<< "DEC:" <<test<<endl;
	cout<< "OCT:" <<oct<<test<<endl;//octal
	cout<< "HEX:" <