Reference no: EM132211470

Question :

Write a program that takes a dollar amount (...XXX.XX) as a string input and inserts commas every three digits if the number is large.

You should search for the "." and then count back three characters from that location, inserting a comma every 3 digits until the character at index 0 is reached.

See the source file for how it is done in C++. Perform the same operation using C.

#include <iostream>
#include <iomanip>

using namespace std;

void dollarFormat(string &);

int main()
{
string s;
cout << "Enter dollar amount in the form nnnn.nn :";
cin >> s;
dollarFormat(s);
cout << "Here is the amount formatted: \n";
cout << s << endl;

return 0;
}

void dollarFormat(string &currency)
{
int dp;
dp = currency.find('.');
if(dp > 3)
{
for(int x = dp-3; x > 0; x-= 3)
{
currency.insert(x, ",");
}
currency.insert(0, "tiny_mce_markerquot;);
}
}

Convert this C++ code to C only