help me i cnt get this to work

[KEVO]

#include <cstdlib>
#include <iostream>
#include <iomanip>

using namespace std;

int main(int argc, char *argv[])
{ // cw for charwidth & bw for billboard width
cout.setf(ios::fixed);
double bw, cw;
float numchars, spaceleft;

cout<<"bbwidth ? ";
cin>>bw;
cout<<"charwidth ? ";
cin>>cw;

numchars=(int)bw/(int)cw;
spaceleft= bw%cw; // i need the modulus but since its doube i get
error message


cout<<"numchar ? "<<setprecision(0)<<numchars<<endl;
cout<<"spaceleft ? "<<setprecision(6)<<spaceleft<<endl;

system("PAUSE");
return EXIT_SUCCESS;
}

 

[Victor Bazarov]

#include <cstdlib>
#include <iostream>
#include <iomanip>

using namespace std;

int main(int argc, char *argv[])
{ // cw for charwidth & bw for billboard width
cout.setf(ios::fixed);
double bw, cw;
float numchars, spaceleft;

cout<<"bbwidth ? ";
cin>>bw;
cout<<"charwidth ? ";
cin>>cw;

numchars=(int)bw/(int)cw;
spaceleft= bw%cw; // i need the modulus but since its doube i get
error message

Operator % is only defined for integral operands, you have 'double'.
See 'modf' function (IIRC).

cout<<"numchar ? "<<setprecision(0)<<numchars<<endl;
cout<<"spaceleft ? "<<setprecision(6)<<spaceleft<<endl;

system("PAUSE");
return EXIT_SUCCESS;
}

V