C program to convert binary to decimal using function

Learn about C program to convert binary to decimal using function in the below code example. Also refer the comments in the code snippet to get a detailed view about what’s actually happening.

Contents

C program to convert binary to decimal using function

Source code:

 #include<stdio.h>
 #include<math.h>
 int convert(int bin);
 int main()
 {
     int binary, decimal;

     printf("Enter binary number: ");
     scanf("%d",&binary);

     decimal = convert(binary);

     printf("Decimal value=%d",decimal);

     return 0;
 }

 int convert(int bin)
 {
     int rem, i=0, dec=0;

     while(bin!=0)
     {
         rem = bin%10;
         dec += (rem*pow(2,i));
         bin /= 10;
         i++;
     }

     return dec;
 }

Output:

Enter binary number: 1010 
Decimal value=10

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