Addition without addition in C#?

Question

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C#

mathematics

Is it possible to add numbers without using the '+' operator?
WITHOUT SUBTRACTION

Posted 6-Feb-14 10:15am

The Kcrownikown

Updated 7-Feb-14 19:06pm

v2

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Comments

Maarten Kools 6-Feb-14 16:19pm

Why would you want to?

Richard C Bishop 6-Feb-14 16:21pm

I can't imagine that there could be unless some abstract method was concocted and I can't even begin to think how you would go about creating that.

BillWoodruff 7-Feb-14 0:58am

Are you re-inventing the wheel ?

The Kcrownikown 8-Feb-14 1:05am

Yep

4 solutions

Solution 3

The "Bitwise operations in C" Wikipedia's page, provides an example[^].

Posted 8-Feb-14 6:29am

CPallini

Solution 4

Its possible with bitwise operations.
You can find some implementations if you search on the internet.

Posted 8-Feb-14 6:34am

Abhinav S

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CPallini · Accepted Answer · 2014-02-06T10:30:00

Solution 1

Yes, of course

C#

int a = 5;
int b = 10;
int c = a - (-b);

Posted 6-Feb-14 10:30am

CPallini

Comments

Andrius Leonavicius 6-Feb-14 16:41pm

*Brackets are optional. ;)

CPallini 6-Feb-14 16:52pm

**They are sexy ;-)

Andrius Leonavicius 6-Feb-14 16:55pm

I can agree on that. :)

The Kcrownikown 8-Feb-14 1:06am

Can I do it without using subtraction

agent_kruger 8-Feb-14 3:19am

this is correct but why so difficult wen we can use (+).

Karthik_Mahalingam · Accepted Answer · 2014-02-07T19:10:00

Solution 2

C#

using System;
using System.Collections.Generic;
using System.Linq;
class Program
{
    public static void Main(string[] args)
    {
        int a = 34;
        int b = 55;
        int[] array = {a,b };
        int sum = array.Sum(); //89

    }

}

Posted 7-Feb-14 19:10pm

Karthik_Mahalingam