Converting binary to decimal using recursion

[trinibaby]

Hi,
I'm having some trouble with my code that convert binary to decimal using recursion. this is my code
#include
#include
using namespace std;
void binaryToDecimal( int binaryNumber, int decimal, int weight );
int main(int argc, char *argv[])
{
// binary to decimal
int decimalNum;
int bitWeight;
int binaryNum;
decimalNum = 0;
bitWeight = 0;
cout <<"enter a number in binary: ";
cin >> binaryNum;
cout << endl;
binaryToDecimal(binaryNum, decimalNum, bitWeight);
cout << "Binary" << binaryNum << "=" << decimalNum
<<"decimal" << endl;

system("PAUSE");
return EXIT_SUCCESS;
}

void binaryToDecimal( int binaryNumber, int decimal, int weight )
{
int bit;
if ( binaryNumber > 0 )
bit = binaryNumber % 10;
decimal = decimal + bit * pow(2, weight );
binaryNumber = binaryNumber / 10;
weight++;
binaryToDecimal(binaryNumber, decimal, weight );
}

my teacher said that i have to do the following errors, but I have no idea how to fix it..
1 - the binaryNumber variable should be a string, not an int
example: "110110"
2 - the function should return an int, the binary string converted to a decimal number
3 - your function never returns, i.e. never stops, that is the cause of the crash

Can someone please help me.
thanks,:)

[WaltP]

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[softeng2013]

//edit code of binary to decimal conversion(using recursive function)
//try it,,,its working

#include
#include

int sum=0;
using namespace std;
int binaryToDecimal( int binaryNumber, int weight );
int main()
{
// binary to decimal

int bitWeight;
int binaryNum;
bitWeight = 0;
cout <<"enter a number in binary: ";
cin >> binaryNum;
cout << endl;
int sum=binaryToDecimal(binaryNum, bitWeight);
cout << "Binary " << binaryNum << "= "<< sum<< endl;

system("PAUSE");
return 0;
}

int binaryToDecimal( int binaryNumber, int weight )
{
int bit;
if ( binaryNumber> 0 ){
bit = binaryNumber % 10;
sum = sum + bit * pow(2, weight );
binaryNumber = binaryNumber / 10;
weight++;
binaryToDecimal(binaryNumber, weight );}
return sum;
}

[softeng2013]

Hi, I'm having some trouble with my code that convert binary to decimal using recursion. this is my code #include #include using namespace std; void binaryToDecimal( int binaryNumber, int decimal, int weight ); int main(int argc, char *argv[]) { // binary to decimal int decimalNum; int bitWeight; int binaryNum; decimalNum = 0; bitWeight = 0; cout <<"enter a number in binary: "; cin >> binaryNum; cout << endl; binaryToDecimal(binaryNum, decimalNum, bitWeight); cout << "Binary" << binaryNum << "=" << decimalNum <<"decimal" << endl; system("PAUSE"); return EXIT_SUCCESS; }

void binaryToDecimal( int binaryNumber, int decimal, int weight ) { int bit; if ( binaryNumber > 0 ) bit = binaryNumber % 10; decimal = decimal + bit * pow(2, weight ); binaryNumber = binaryNumber / 10; weight++; binaryToDecimal(binaryNumber, decimal, weight ); }

my teacher said that i have to do the following errors, but I have no idea how to fix it.. 1 - the binaryNumber variable should be a string, not an int example: "110110" 2 - the function should return an int, the binary string converted to a decimal number 3 - your function never returns, i.e. never stops, that is the cause of the crash

Can someone please help me. thanks,:)

see below..i have modify your code..now its working...just copy and paste..and enjoy it...dont forget to reply..

[Mr. K]

Did you find any error? What type of error did you get?

#include <iostream>
#include <math.h>

int sum = 0;
using namespace std;
int binaryToDecimal( int binaryNumber, int weight );
int main()
{
// binary to decimal

int bitWeight;
int binaryNum;
bitWeight = 0;
cout <<"enter a number in binary: ";
cin >> binaryNum;
cout << endl;
int sum = binaryToDecimal(binaryNum, bitWeight);
cout << "Binary " << binaryNum << "= "<< sum<< endl;

system("PAUSE");
return 0;
}

int binaryToDecimal( int binaryNumber, int weight )
{
int bit;
if ( binaryNumber > 0 ){
bit = binaryNumber % 10;
sum = sum + bit * pow(2, weight );
binaryNumber = binaryNumber / 10;
weight++;
binaryToDecimal(binaryNumber, weight );
}
return sum;
}