Binary to Decimal in C++

To convert binary to decimal in C++ Programming, you have to ask to the user to enter any number in binary

to convert it into decimal, then display the equivalent decimal value on the output screen as shown here in the following program.

C++ Programming Code to Convert Binary to Decimal

Following C++ program ask to the user to enter any number in binary to convert it into decimal form, then display the result on the screen :

 

#include <iostream>

#include<string>

using namespace std;

int main()

{

long int binnum, decnum=0, i=1, rem;

cout<<"enter any binary number: ";

cin>>binnum;

 

//  循环 

while(binnum!=0)

{

rem=binnum%10;

decnum=decnum+rem*i;

i=i*2;

binnum=binnum/10;

}

cout<<"equivalent decimal value=: "<<decnum;

}