Question

Defining a binary in c language, write the function int binToDec(const int bin[]) to convert an eight-bit unsigned binary number to a nonnegative decimal integer. Do not output the decimal integer in the function. Test your function with interactive input?

Answer 1

#include<stdio.h>

#include<math.h>

int binToDec(const int bin[]){

int i=0,total=0,p=0;

//iterating the array

for(i=7;i>=0;i--,p++){

// starting the power with 0, 2^0,2^1,2^2...2^8

total=total+(pow(2,p)*bin[i]);

}

return total;

}

int main(){

int arr[8];

int n=0,i=0,decimalNumber;

while(n!=-1){

//reading binary number into array

printf("Please 8 bit binary number: ");

for(i=0;i<8;i++)

scanf("%d",&arr[i]);

//converting into decimal

decimalNumber=binToDec(arr);

//printing the decimal value

printf("Decimal Number is : %d\n",decimalNumber);

printf("Press -1 to exit, any other key to continue: ");

scanf("%d",&n);

}

}