Need help with C++ program

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Can I write a project in C++ that converts numbers from decimal to binary?
Or a program that calculates sum of binary numbers, does multiplication and division?
If I can how do that what is the basic idea for the programs?

Posted 14-May-10 10:30am

danger man 2011

Updated 14-May-10 13:08pm

Moak

v2

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Richard MacCutchan · Accepted Answer · 2010-05-14T10:41:00

Yes, you can do any of these things, assuming you understand how numbers are represented in computers. Try using functions such as atoi (take a look at the MSDN documentation) to convert your strings to numbers, and printf() to display your results. You can also use cin and cout but it is less likely to enhance your levels of understanding.

Xeqtr · Accepted Answer · 2010-05-14T10:42:00

Solution 2

Simple example to convert from decimal to binary:

long Convert(int x) {
	
	int i;
	int mod;
	long double_ = 0;

	for (i = 0; x>0; i++) 
        {
	
		mod =  x % 2;
		x = (x - mod) / 2;
		double_ += mod * pow((double)10,i);
	}
	return double_;

}

Posted 14-May-10 10:42am

Xeqtr

Updated 14-May-10 22:07pm

v2