学習演習として、さまざまな種類の数値をさまざまなファイルに並べ替えたいと思います。正しくソートするためにdoubleとintを取得することができましたが、正しくフォーマットするために自分のタイプ(カードのデッキをソートするため)を取得できません。Readerクラスのsort関数に絞り込むことができました。あらゆる種類のエラーが発生します。私は正確に何を間違っているのですか?それとも私は何かが足りないのですか?皆さん、ありがとうございました。問題を明確に説明できたと思います。
カード用に作成したファイルは次のようになります...
1 11 (meaning Jack of Diamonds)
2 8 (meaning 8 of hearts)
等...
エラー:
エラー:'((Reader )this)-> Reader :: array [compareIndex] <((Reader)this)-> Reader ::array[smallestIndex]'の'operator<'に一致しません
エラー:初期化時に「Card」を「int」に変換できません
エラー:'((Reader *)this)-> Reader :: array [smallestIndex]=temp'の'operator='に一致しません
私のコード
最後に、メイン
#include <iostream>
#include "Reader.h"
#include "Card.h"
using namespace std;
int main() {
Reader<int> nums;
Reader<double> dubs;
Reader<Card> cards;
int number;
do {
cout << "Enter 1 if your file contains integers\n"
<< "Enter 2 if your file contains doubles\n"
<< "Enter 3 if your file contains Cards:\n"
<< "Enter a number: ";
cin >> number;
if (number == 1){
nums.open_IO();
nums.read_array();
nums.sort();
nums.write_array();
nums.close_IO();
} else if (number == 2){
dubs.open_IO();
dubs.read_array();
dubs.sort();
dubs.write_array();
dubs.close_IO();
} else if (number == 3){
cards.open_IO();
cards.read_array();
cards.sort();
cards.write_array();
cards.close_IO();
}
} while ((number != 1) && (number != 2) && (number != 3));
}
Reader.h
#ifndef READER_H
#define READER_H
#include <string>
#include <fstream>
using namespace std;
template <class rList>
class Reader {
public:
static const int SIZE = 50;
Reader();
bool open_IO();
void close_IO();
bool read_array();
bool write_array();
void sort();
private:
// Ask for the files
void ask_filenames();
rList array[SIZE];
int readSize;
// input file names and stream to get the data
string readFileName;
ifstream inFile;
// output file names and stream to get the data
string writeFileName;
ofstream outFile;
bool askedFileNames;
};
#endif
#include "Reader.cpp"
私のReader.Cppファイル
// File: Reader.cpp
#ifndef READER_CPP
#define READER_CPP
#include "Reader.h"
#include <iostream>
using namespace std;
/***************************************************************************
* Contructors and modifying functions defined in "Reader.h"
***************************************************************************/
template <class rList>
Reader<rList>::Reader() {
askedFileNames = false;
readFileName = "";
writeFileName = "";
readSize = 0;
rList empty;
for( int i = 0; i<SIZE; i++ ) array[i]=empty;
}
template <class rList>
bool Reader<rList>::open_IO(){
if(!askedFileNames) ask_filenames();
inFile.open(readFileName.c_str()); //we can't pass a string, we need a char array
if(!inFile.is_open()) {
return false;
}
outFile.open(writeFileName.c_str());
if(!outFile.is_open()) {
inFile.close(); //inFile opened successfully so it needs to be closed now
return false;
}
return true;
}
template <class rList>
void Reader<rList>::close_IO() {
inFile.close();
outFile.close();
}
template <class rList>
bool Reader<rList>::read_array() {
if(inFile.is_open()) {
inFile >> readSize;
int index = 0;
while(!inFile.eof() && index < readSize) {
inFile >> array[index++]; //increments index after assigning value
}
readSize = index; //the input file could have had fewer numbers so set readSize
return true;
}
return false;
}
template <class rList>
bool Reader<rList>::write_array() {
if(outFile.is_open()) {
outFile << readSize << endl;
//don't forget the number indicating the element co
int index = 0;
while(index < readSize) {
outFile << array[index++] << endl;
}
return true;
}
return false;
}
template <class rList>
void Reader<rList>::sort() {
int startIndex = 0;
int compareIndex;
int smallestIndex;
bool smallerFound;
while(startIndex < readSize) {
smallestIndex = startIndex;
compareIndex = startIndex + 1;
smallerFound = false;
while(compareIndex < readSize) { //find the smallest value from the starting index
if(array[compareIndex] < array[smallestIndex]) {
smallestIndex = compareIndex;
smallerFound = true;
}
compareIndex++;
}
if(smallerFound) { //only swap the values if a smaller value is found
int temp = array[startIndex];
array[startIndex] = array[smallestIndex];
array[smallestIndex] = temp;
}
startIndex++;
}
}
/*--------------------------------------------------------------
This function asks the user for the filenames. This operation
is placed in a separate function because it is called multiple
times.
--------------------------------------------------------------*/
template <class rList>
void Reader<rList>::ask_filenames() {
cout << "Welcome. Please type in the name of the file to read the numbers.\n";
cin >> readFileName;
cout << "Thank you. Please type in the name of the file to write the numbers.\n";
cin >> writeFileName;
askedFileNames = true;
}
#endif
Card.h
#include <ostream>
#include <string>
#include "Reader.h"
using namespace std;
class Card{
public:
static const int SIZE = 50;
enum SUIT {clubs, diams, hears, spads };
enum RANK {ace=1, two, thr, fou, fiv, six, sev, eig, nin, ten, jac, que, kin};
Card();
Card(int newSuit, int newRank);
void change(int newSuit, int newRank);
friend ostream& operator << ( ostream& out, Card theCard );
friend istream& operator >> ( istream& in, Card theCard );
private:
void change_rank(int newRank);
void change_suit(int newSuit);
string get_rank() const;
string get_suit() const;
SUIT suit;
RANK rank;
};
Card.cpp
#include <iostream>
#include <string>
#include "Card.h"
using namespace std;
Card::Card() { suit = spads; rank = ace; }
Card::Card(int newSuit, int newRank) {
change(newSuit, newRank);
}
void Card::change( int newSuit, int newRank ) {
change_suit( newSuit );
change_rank( newRank );
}
ostream& operator << ( ostream& out, Card theCard ) {
out << theCard.get_rank() << " of " << theCard.get_suit();
return out;
}
istream& operator >> ( istream& in, Card theCard ) {
int aSuit;
int aRank;
in >> aSuit >> aRank;
return in;
}
// private member functions to set the private variables with their
// corresponding values: integer input -> enumerated type;
void Card::change_rank( int newRank ) {
if( newRank == ace ) rank = ace;
else if( newRank == two ) rank = two;
else if( newRank == thr ) rank = thr;
else if( newRank == fou ) rank = fou;
else if( newRank == fiv ) rank = fiv;
else if( newRank == six ) rank = six;
else if( newRank == sev ) rank = sev;
else if( newRank == eig ) rank = eig;
else if( newRank == nin ) rank = nin;
else if( newRank == ten ) rank = ten;
else if( newRank == jac ) rank = jac;
else if( newRank == que ) rank = que;
else if( newRank == kin ) rank = kin;
}
void Card::change_suit( int newSuit ) {
if( newSuit == clubs ) suit = clubs;
else if( newSuit == spads ) suit = spads;
else if( newSuit == diams ) suit = diams;
else if( newSuit == hears ) suit = hears;
}
// Private member functions to extract the information from the card
// class.
string Card::get_rank() const {
if( rank == ace ) return "ace";
if( rank == two ) return "two";
if( rank == thr ) return "three";
if( rank == fou ) return "four";
if( rank == fiv ) return "five";
if( rank == six ) return "six";
if( rank == sev ) return "seven";
if( rank == eig ) return "eight";
if( rank == nin ) return "nine";
if( rank == ten ) return "ten";
if( rank == jac ) return "jack";
if( rank == que ) return "queen";
if( rank == kin ) return "king";
return "get_rank: error";
}
string Card::get_suit() const {
if( suit == diams ) return "D";
if( suit == hears ) return "H";
if( suit == spads ) return "S";
if( suit == clubs ) return "C";
return "get_suit: error";
}