Vector Errors in C++ Program -
i working on miscellaneous theater seating program! starting progress through c++, can't figure out these errors. trying make program store user entered row numbers , row seats (only if multiple seats) in 2 vectors; vector seat_row() , vector seat_number(). know error stating, don't know how approach situation otherwise. sorry if being unclear, honest, don't know else include. please take @ code, feel program, , let me have ideas. please keep answers simple; again, i'm no master @ c++
p.s.
sorry showing whole code... didn't know include, not to; , wanted people able feel program testing themselves... again!
/* * program built team of students * local movie theaters sell tickets * * file: main.cpp * author(s): * * * created on april 15, 2013, 11:10 */ #include <cstdlib> #include <vector> #include <string> #include <fstream> #include <iostream> #include <cctype> #include <iomanip> using namespace std; //function prototypes void title_card(); void seating_prices(); void seating_chart(); void pick_seating(); void purchase_history(); void quit(); void update_file(); void show_menu(); void picking_seats(); void display_seating(); void display_name(); void display_number_of_seats(); void display_correct1(string, int); void display_seats(); void display_correct2(string, int, int, int); void display_correct2_alt(string, int, vector<int>, vector<int>); void display_correct3(string); void multiple_seats(string, int, vector<int>, vector<int>); void display_rows_seats(string, int); void display_finished(string); void display_purchase_seats(string, int, int); void display_purchase_seats_alt(string, int, vector<int>, vector<int>); int readseating (const char*, vector<char>&); //reads seatingchart.txt int readprices(string, vector<double>&); //reads seatingprices.txt vector<double> prices(15); //for seatprices.txt vector<char> seating(450); //for seatingchart.txt vector<int> seat_row(); //for storing multiple seat rows vector<int> seat_number(); //for storing multiple seat numbers //actual program int main() { title_card(); //calls title page readseating("seatingchart.txt", seating); //reads seatingchart.txt readprices("seatprices.txt", prices); //reads seatprices.txt show_menu(); //shows introductory menu system ("pause"); return 0; } //************************************************************** // definition of showmenu function. shows introductory menu* // , controls user ends in program. * //************************************************************** void show_menu() { int choice; string password; cout << "welcome our theater program! made person" << endl; cout << "who looking seating, purchasing ticket, and" << endl; cout << "searching other miscellaneous things... hope" << endl; cout << "you enjoy program!" << endl << endl; cout << "below list of options user can choose from:" << endl << endl; cout << "1.\tseating prices" << endl; cout << "2.\tseating chart" << endl; cout << "3.\tpick seating" << endl; cout << "4.\tpurchase history" << endl; cout << "5.\tquit" << endl << endl; cout << "enter choice... (1-5): "; cin >> choice; while (choice < 1 || choice > 5){ cout << endl << "you have entered invalid choice!" << endl; cout << "enter choice... (1-5): "; cin >> choice; } switch (choice){ case 1: seating_prices(); case 2: seating_chart(); case 3: pick_seating(); case 4: purchase_history(); case 5: quit(); } } //************************************************************** // definition of seating_prices function. displays * // user, seatprices.txt * //************************************************************** void seating_prices(){ system ("cls"); cout << "the current seating prices are:" << endl << endl; (int count = 0; count < 4; count++){ cout << " " << setprecision(4) << showpoint << prices[count] << " | row " << (count + 1) << endl; } (int count = 4; count < prices.size(); count++){ cout << " " << setprecision(3) << showpoint << prices[count] << " | row " << (count + 1) << endl; } cout << endl; system ("pause"); system ("cls"); show_menu(); } //************************************************************** // definition of seating_chart function. function * // displaying seating chart * //************************************************************** void seating_chart(){ system ("cls"); int counter = 30; int row_counter = 0; cout << "the current seating chart is:" << endl << endl << endl << " 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0" << endl << endl; cout << " ---------------------------------------------------------------" << endl; cout << " row " << (row_counter + 1) << " "; //displaying seating chart (int index = 0; index < 270; index++){ if (index == counter){ row_counter = (row_counter + 1); counter = (counter + 30); cout << "" << endl << " row " << (row_counter + 1) << " "; } cout << seating[index] << " "; } (int index = 270; index < seating.size(); index++){ if (index == counter){ row_counter = (row_counter + 1); counter = (counter + 30); cout << "" << endl << " row " << (row_counter + 1) << " "; } cout << seating[index] << " "; } cout << endl << " ---------------------------------------------------------------" << endl; cout << endl << endl; system ("pause"); system ("cls"); show_menu(); } //************************************************************** // definition of pick_seating function. displays * // current seating chart , allows user pick seat* //************************************************************** void pick_seating(){ //not finished system ("cls"); display_seating(); } //************************************************************** // definition of purchase_history function. displays * // current total sum of movie ticket purchases * //************************************************************** void purchase_history(){ //not finished system ("cls"); system ("pause"); system ("cls"); show_menu(); } //************************************************************** // definition of quit function. allows user quit the* // program entirely * //************************************************************** void quit(){ update_file(); exit(0); } //************************************************************** // definition of update_file function. designed update * // seating chart upon leaving pick_seating function * //************************************************************** void update_file(){ //not finished //this function supposed //update seating chart //upon exit of pick_seating function } //************************************************************** // definition of read_prices function. reads seatprices.txt * // , stores pre-determined prices vector named * // prices. * //************************************************************** int readprices(string myfile, vector<double>& vect) { //input file ifstream seatprices; seatprices.open(myfile.c_str()); //if file cannot found if (!seatprices) cout << "cannot find file!" << endl; (int index = 0; index < vect.size(); index++){ seatprices >> vect[index]; //reading file "seatprices.txt" } seatprices.close(); //closes file return 0; } //************************************************************** // definition of readseating function. reads text file * // seating chart in it. * //************************************************************** int readseating(const char* myfile, vector<char>& vect){ //input file ifstream seatingchart; seatingchart.open(myfile); //if file cannot found if (!seatingchart) cout << "cannot find file!" << endl; (int index = 0; index < vect.size(); index++){ seatingchart >> vect[index]; //reading file "seatingchart.txt" } seatingchart.close(); //closes file return 0; } //************************************************************** // definition of display_seating function. function * // simplifying pick_seating function * //************************************************************** void display_seating(){ int counter = 30; int row_counter = 0; //displaying seating chart cout << " 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0" << endl << endl; cout << " ---------------------------------------------------------------" << endl; cout << " row " << (row_counter + 1) << " "; //displaying seating chart (int index = 0; index < 270; index++){ if (index == counter){ row_counter = (row_counter + 1); counter = (counter + 30); cout << "" << endl << " row " << (row_counter + 1) << " "; } cout << seating[index] << " "; } (int index = 270; index < seating.size(); index++){ if (index == counter){ row_counter = (row_counter + 1); counter = (counter + 30); cout << "" << endl << " row " << (row_counter + 1) << " "; } cout << seating[index] << " "; } cout << endl << " ---------------------------------------------------------------" << endl << endl; cout << "in seating chart... hashtags (#'s) seats taken" << endl; cout << "and stars (*'s) available seats..." << endl << endl; system ("pause"); display_name(); //continues program, helps loop if necessary } //************************************************************** // definition of display_name function. function * // simplifying pick_seating function * //************************************************************** void display_name(){ string name; //picking seat cout << endl << endl << "to pick own seat(s), follow instructions below:" << endl << endl; cout << "what name of recipient of seat(s)? "; cin >> name; display_correct3(name); } //************************************************************** // definition of display_number_of_seats function. function* // simplifying pick_seating function * //************************************************************** void display_number_of_seats(string name){ int number_of_seats; int available_seats = 450; //amount of remaining seats out of 450 cout << "alright " << name << "!" << endl; cout << "how many seats purchasing today? "; cin >> number_of_seats; while (number_of_seats < 1 || number_of_seats > available_seats){ cout << endl << endl << "you have entered invalid number of seats!" << endl; cout << "this might because number 0 or less," << endl; cout << "or number entered more amount" << endl; cout << "of remaining seats! try again!" << endl << endl; cout << "how many seats purchasing today? "; cin >> number_of_seats; } display_correct1(name, number_of_seats); } //************************************************************** // definition of display_correct1 function. function * // simplifying pick_seating function * //************************************************************** void display_correct1(string name, int number_of_seats){ int correct; cout << endl << "alright " << name << ", purchasing " << number_of_seats << " seat(s)?" << endl; cout << "is correct? enter '0' 'no', or '1' yes: "; cin >> correct; while (correct < 0 || correct > 1){ cout << "you have entered invalid number!" << endl; cout << "enter '0' 'no', or '1' yes: "; cin >> correct; } if (correct == 0){ cout << endl << endl; display_number_of_seats(name); } if (correct == 1){ cout << endl << endl; if (number_of_seats > 1) multiple_seats(name, number_of_seats, seat_row, seat_number); display_rows_seats(name, number_of_seats); } } //************************************************************** // definition of multiple_seats function. function * // used if user chooses purchase multiple seats * //************************************************************** void multiple_seats(string name, int number_of_seats, vector<int> vect, vector<int> vect2){ (int index = 1; index <= number_of_seats; index++){ (int count = 0; count < number_of_seats; count++){ cout << "for seat #" << index << "..." << endl; cout << "enter row number in: (1-15): "; cin >> vect[count]; while (vect[count] < 1 || vect[count] > 15){ cout << endl << "you have entered invalid row number!" << endl; cout << "enter row number in (1-15): "; cin >> vect[count]; } cout << "enter seat number have (1-30): "; cin >> vect2[count]; while (vect2[count] < 1 || vect2[count] > 30){ cout << endl << "you have entered invalid seat number!" << endl; cout << "enter seat number have (1-30): "; cin >> vect2[count]; } cout << endl; } } display_correct2_alt(name, number_of_seats, seat_row, seat_number); } //************************************************************** // definition of display_rows_seats function. function * // simplifying pick_seating function * //************************************************************** void display_rows_seats(string name, int number_of_seats){ int seat_choice; int row_choice; cout << "enter row number in: (1-15): "; cin >> row_choice; while (row_choice < 1 || row_choice > 15){ cout << endl << "you have entered invalid row number!" << endl; cout << "enter row number in (1-15): "; cin >> row_choice; } cout << "enter seat number have (1-30): "; cin >> seat_choice; while (seat_choice < 1 || seat_choice > 30){ cout << endl << "you have entered invalid seat number!" << endl; cout << "enter seat number have (1-30): "; cin >> seat_choice; } display_correct2(name, number_of_seats, row_choice, seat_choice); //helps looping if necessary } //************************************************************** // definition of display_correct2_alt function. alternate * // function if user enters multiple seats * //************************************************************** void display_correct2_alt(string name, int number_of_seats, vector<int> vect, vector<int> vect2){ int correct; int counter = 1; int counter_2 = 1; //for minor details looks (int index = 1; index <= number_of_seats; index++){ (int count = 0; count < number_of_seats; count++){ if (counter_2 != number_of_seats && counter_2 == 1){ //for first seat cout << endl << endl << "alright " << name << ";" << endl; cout << "for seat #" << index << "; chose " << "row #" << vect[count]; cout << " , seat #" << vect2[count] << "?" << endl; cout << "is correct? enter '0' 'no', or '1' yes: "; cin >> correct; } if (counter_2 != number_of_seats && counter_2 > 1){ //for seats after first, except last seat cout << endl << endl; cout << "next, seat #" << index << "; chose " << "row #" << vect[count]; cout << " , seat #" << vect2[count] << "?" << endl; cout << "is correct? enter '0' 'no', or '1' yes: "; cin >> correct; } if (counter_2 == number_of_seats){ //for last seat cout << endl << endl; cout << "and last seat, seat #" << index << "; chose " << "row #" << vect[count]; cout << " , seat #" << vect2[count] << "?" << endl; cout << "is correct? enter '0' 'no', or '1' yes: "; cin >> correct; } } while (correct < 0 || correct > 1){ cout << "you have entered invalid number!" << endl; cout << "enter '0' 'no', or '1' yes: "; cin >> correct; } if (correct == 0){ cout << endl << endl; if (number_of_seats > 1) multiple_seats(name, number_of_seats, seat_row, seat_number); display_rows_seats(name, number_of_seats); } if (correct == 1){ if (counter == number_of_seats) display_purchase_seats_alt(name, number_of_seats, seat_row, seat_number); } counter = (counter + 1); counter_2 = (counter_2 + 1); } } //************************************************************** // definition of display_correct2 function. function * // simplifying pick_seating function * //************************************************************** void display_correct2(string name, int number_of_seats, int row_choice, int seat_choice){ int correct; cout << endl << endl << "alright " << name << ", chose " << "row #" << row_choice; cout << " , seat #" << seat_choice << "?" << endl; cout << "is correct? enter '0' 'no', or '1' yes: "; cin >> correct; while (correct < 0 || correct > 1){ cout << "you have entered invalid number!" << endl; cout << "enter '0' 'no', or '1' yes: "; cin >> correct; } if (correct == 0){ cout << endl << endl; if (number_of_seats > 1) multiple_seats(name, number_of_seats, seat_row, seat_number); display_rows_seats(name, number_of_seats); } if (correct == 1) display_purchase_seats(name, row_choice, seat_choice); } //************************************************************** // definition of display_purchase_seats function. function * // user purchase chosen seats * //************************************************************** void display_purchase_seats(string name, int row_choice, int seat_choice){ int total_cost = 0; //not set yet; supposed calculate row price system ("cls"); cout << name << ", time pay chosen seats!" << endl; cout << "since chose row #" << row_choice << ", , seat# " << seat_choice << "..." << endl; cout << "your total cost is: s" << total_cost << endl << endl; system ("pause"); display_finished(name); } //************************************************************** // definition of display_purchase_seats_alt function. * // alternate function used purchasing multiple seats * //************************************************************** void display_purchase_seats_alt(string name, int number_of_seats, vector<int> vect, vector<int> vect2){ int total_cost = 0; //not set yet; supposed calculate row price system ("cls"); cout << name << ", time pay chosen seats!" << endl; cout << "since chose " << number_of_seats << " seats:" << endl << endl; (int index = 0; index <= number_of_seats; index++){ cout << "seat #" << index << " being in row #" << seat_row[index] << ";" << endl; } cout << endl << "your total cost is: $" << total_cost << endl << endl; system ("pause"); display_finished(name); } //************************************************************** // definition of display_correct3 function. function * // simplifying pick_seating function * //************************************************************** void display_correct3(string name){ int correct; cout << endl << "alright, chose name " << name << "?" << endl; cout << "is correct? enter '0' 'no', or '1' yes: "; cin >> correct; while (correct < 0 || correct > 1){ cout << "you have entered invalid number!" << endl; cout << "enter '0' 'no', or '1' yes: "; cin >> correct; } if (correct == 0){ system ("cls"); display_seating(); } if (correct == 1){ cout << endl; display_number_of_seats(name); //helps if looping necessary } } //************************************************************** // definition of display_finished function. function * // simplifying pick_seating function * //************************************************************** void display_finished(string name){ system ("cls"); cout << "congratulations " << name << "! have picked seat!" << endl; cout << "the seating chart update momentarily..." << endl << endl; update_file(); system ("pause"); system ("cls"); show_menu(); } //************************************************************** // definition of title_card function. starts program * // title card, showing little introductory title * //************************************************************** void title_card(){ cout << endl << endl << endl << endl; cout << "\t\t" << "************************************************\n"; cout << "\t\t" << "* theater seating! *\n"; cout << "\t\t" << "* *\n"; cout << "\t\t" << "* program created team of 3 *\n"; cout << "\t\t" << "* students small theaters sell *\n"; cout << "\t\t" << "* more tickets *\n"; cout << "\t\t" << "* *\n"; cout << "\t\t" << "* team of students: *\n"; cout << "\t\t" << "* *\n"; cout << "\t\t" << "* *\n"; cout << "\t\t" << "* *\n"; cout << "\t\t" << "* *\n"; cout << "\t\t" << "* *\n"; cout << "\t\t" << "************************************************\n"; cout << endl << endl; system ("pause"); system ("cls"); }
your error here
vector<int> seat_row(); //for storing multiple seat rows vector<int> seat_number(); //for storing multiple seat numbers it should be
vector<int> seat_row; //for storing multiple seat rows vector<int> seat_number; //for storing multiple seat numbers it's common error, trying declare 2 vectors called seat_row , seat_number, because used empty parens instead declared 2 functions return vectors.
here's summary
vector<int> a(10); // vector, size 10 vector<int> b(0); // vector, size 0 vector<int> c; // vector size 0 vector<int> d(); // function!! taking no arguments , returning vector
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