CODEWITHSUNDEEP
cbit-manipulation
user834697
user834697

Reputation: 235

split two number using bit operators

Assuming that I have an variable like:

int n = 23;

it is possible split it, and convert to: 

int x = n ?? ??; //2
int y = n ?? ??; //3

have no idea how to do this. Any help is very appreciated. Thanks in advance.

Upvotes: 1

Views: 866

Answers (3)

jim mcnamara
jim mcnamara

Reputation: 16389

different approach using libc library. .. there are others as well.

 int *
 val2arr(int *arr, const int val)
 {
       char tmp[32]={0x0}; // more than digits in LONG_MAX on 64 bit
       char *p=tmp;
       int *i=arr;
       sprintf(p, "%d", val);
       for(; *p; i++, p++ ) 
           *i=*p - 48;
       *i=-1;          // mark end with -1
       return arr; 
 }

Upvotes: 0

Adam S
Adam S

Reputation: 3125

You can use a loop to grab each value. You'll have to keep track of x here differently of course, but I think this will work for you.

while (n != 0)
{
    x = n % 10;
    n = n / 10;
}

Upvotes: 1

Greg Hewgill
Greg Hewgill

Reputation: 993183

It is not necessary to use bit operators for this. In fact, since bit operators work with the binary representation of numbers, they're generally no good for base 10 calculations.

int n = 23;
int x = n / 10;
int y = n % 10;

Upvotes: 7

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