i'm doing project file processing in c++. project wants users create sequential file (input data), , file reading data sequential file (output data). i'm using visual studio write program. came few problems.
visual studio has 1
int main()in 1 project. how can write program? did same project java , works fine.i tried create separated project. now, can have 2
int main()can not read data first file (input), because 2 different projects.
i'm new c++ , hoping guys can me. not know if can post question here. thank much!
updated
input
#include <iostream> #include <fstream> #include <string> #include <cstdlib> using namespace std; int main() { ofstream outclientfile("payroll.txt", ios::out); if (!outclientfile) { cerr << "file not opened" << endl; exit(exit_failure); } cout << "enter employee id, hours , payrate" << endl << "enter end-of-file end input.\n? "; int id; float hours; float payrate; while (cin >> id >> hours >> payrate) { outclientfile << id << ' ' << hours << ' ' << payrate << endl; cout << "? "; } } output
#include <iostream> #include <fstream> #include <iomanip> #include <string> #include <cstdlib> using namespace std; void outputline(int, float, float, float); int main() { ifstream inclientfile("payroll.txt", ios::in); if (!inclientfile) { cerr << "file not opened" << endl; exit(exit_failure); } int id; float hours; float payrate; float grosspay = hours * payrate; cout << left << setw(10) << "employee id" << setw(13) << "hours" << "payrate" << setw(10) << "grosspay" << endl << fixed << showpoint; while (inclientfile >> id >> hours >> payrate >> grosspay) outputline(id, hours, payrate, grosspay); } void outputline(int id, float hours, float payrate, float grosspay) { cout << left << setw(10) << id << setw(13) << hours << setw(7) << payrate << setw(7) << setprecision(2) << right << payrate << endl; }
you don't need have more 1 main function.
you can make part1 function , part2 function , call them both main 1 after another.
void part1(){ //code writing file } void part2(){ //code reading file } int main(){ part1(); part2(); return 0; } 