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devices.hファイルアーキテクチャx86_64の未定義シンボル。私のコードに何が問題なの？
#ifndef DEVICES_H
#define DEVICES_H
class malfunctionRecord
{
private:
int Num_Malfunction_Detection;
int Type_Malfunction;
int Last_Malfunction;
public:
malfunctionRecord();
void malfunction(int mlfn,int tm);
void display();
int getRecord(int*m,int*t);
};
class device
{
private:
char *Name;
malfunctionRecord malfunctionRec;
int Serial_Num;
int Value_Device;
public:
device(char*n,int sn);
~device();
void display();
void recordMalfunction(int m,int t);
int getMalfunctionRecord(int *m,int *t);
int amIThisDevice(char*n);
};
#endif
（これは私のdevices.cppファイルです）
#include<iostream>
#include "devices.h"
using namespace std;
malfunctionRecord::malfunctionRecord()
{
Num_Malfunction_Detection=0;
Last_Malfunction=0;
Type_Malfunction=='No_Malfunction';
}
void malfunctionRecord::malfunction(int mlfn,int tm)
{
Num_Malfunction_Detection=Num_Malfunction_Detection+mlfn;
Last_Malfunction=Last_Malfunction+tm;
}
void malfunctionRecord::display()
{
if (Num_Malfunction_Detection=0)
cout<<" the device has never malfunctioned";
else
cout<<"The device has malfunctioned"<<Num_Malfunction_Detection<<"times. the malfunction is type"<<Type_Malfunction<<" and last malfunction time is"<<Last_Malfunction<<endl;
}
int malfunctionRecord::getRecord(int*m,int*t)
{
cout<<"The device has malfunctioned"<<Num_Malfunction_Detection<<"times.";
Type_Malfunction=*m;
Last_Malfunction=*t;
}
/*int device::device(char*n,int sn)
{
}
void device::display()
{
}
void device::recordMalfunction(int m,int t)
{
}
int device::getMalfunctionRecord(int *m,int *t)
{
}
int device::amIThisDevice(char*n)
{
}
*/
（これは私のメインのCPPファイルで、与えられた）
#include "definitions.h"
#include "devices.h"
#include <iostream>
using namespace std;
int main() {
malfunctionRecord m1, m2;
device d1("Turn Signal Lever", 195), d2("Accelerator", 247), *d3;
int c, m, t; // Temp variables to hold values retrieved from getRecord.
char ch; // Used to hold display until user presses enter.
// malfunctionReport tests.
cout << "Initially both m1 and m2 should have no malfunctions:\n\n";
m1.display();
cout << "\n";
m2.display();
cout << "\n";
// Set a malfunction in m1.
m1.malfunction(MALFUNCTION_UNDER_RANGE,10);
cout << "m1 should now have one malfunction with time 10 and under range.\n";
m1.display();
// Now add some malfunctions and verify that only the last is kept.
m1.malfunction(MALFUNCTION_OVER_RANGE,25);
cout << "\nm1 should now have two malfunctions, the last one with time 25 and over range.\n";
m1.display();
m1.malfunction(MALFUNCTION_STOPPED_WORKING,32);
cout << "\nm1 should now have three malfunctions, the last one with time 32 and stopped working.\n";
m1.display();
// Now test the retrieval function.
c = m1.getRecord(&m, &t);
cout << "\n\nValues returned from getRecord are " << c << ", " << m << ", and " << t << ".\n";
cout << "\nEnd of malfunctionReport tests.\n\n\n";
// Hold display so user has a chance to check results so far.
cout << "Press ENTR when ready to continue:";
ch = cin.get();
// device class tests.
cout << "\n\n\nBeginning tests for device class.\n";
cout << "Display original d1 and d2:\n\n";
d1.display();
cout << "\n";
d2.display();
cout << "\n\nTest the amIThisDevice function. \n";
if(d1.amIThisDevice("Turn Signal Lever")) cout << " First test on d1 passed.\n";
else cout << " First test on d1 failed.\n";
if(d1.amIThisDevice("Accelerator")==0) cout << " Second test on d1 passed.\n";
else cout << " Second test on d1 failed.\n";
cout << "\n\nNow test record and get malfunction function members.\n";
d1.recordMalfunction(MALFUNCTION_UNDER_RANGE,25);
cout << " Should see count equal 1 and under range malfunction at time 25:\n";
d1.display();
d1.recordMalfunction(MALFUNCTION_OVER_RANGE,50);
cout << "\n Should see count equal 2 and over range malfunction at time 50:\n";
d1.display();
d1.recordMalfunction(MALFUNCTION_STOPPED_WORKING,64);
cout << "\n Should see count equal 3 and stopped working malfunction at time 64:\n";
d1.display();
cout << "\n\nTry to retrieve malfunction report. Should see same values as above.\n";
c = d1.getMalfunctionRecord(&m,&t);
cout << "Values returned from getRecord are " << c << ", " << m << ", and " << t << ".\n";
// Test destructor. Create a new device and then delete it.
cout << "\n\nTesting create and destroy n object. If you don't see the";
cout << "\nend of tests message, there is something wrong with your destructor.\n\n";
d3 = new device("Temporary Device", 100);
d3->display();
delete d3;
cout << "\n\nEnd of tests for Program 3.\n";
return 0;
}
01私はそれをコンパイルするとき
（これは私のdefinition.hファイルです）
#define NO_MALFUNCTION 20
#define MALFUNCTION_OVER_RANGE 21
#define MALFUNCTION_UNDER_RANGE 22
#define MALFUNCTION_STOPPED_WORKING 23
、私はこれらのエラーを取得しておいてください。
g++ devices.cpp main.cpp -o a
devices.cpp:9:23: warning: character constant too long for its type
main.cpp: In function ‘int main()’:
main.cpp:11: warning: deprecated conversion from string constant to ‘char*’
main.cpp:11: warning: deprecated conversion from string constant to ‘char*’
main.cpp:53: warning: deprecated conversion from string constant to ‘char*’
main.cpp:56: warning: deprecated conversion from string constant to ‘char*’
main.cpp:76: warning: deprecated conversion from string constant to ‘char*’
Undefined symbols for architecture x86_64:
"device::device(char*, int)", referenced from:
_main in cc7F618W.o
"device::display()", referenced from:
_main in cc7F618W.o
"device::amIThisDevice(char*)", referenced from:
_main in cc7F618W.o
"device::recordMalfunction(int, int)", referenced from:
_main in cc7F618W.o
"device::getMalfunctionRecord(int*, int*)", referenced from:
_main in cc7F618W.o
"device::~device()", referenced from:
_main in cc7F618W.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
誰もが私のコードで間違っているものを私に伝えることができますか？ありがとう！
メンバ関数の実装を記述するときに、私がmalfunctionRecord :: getRecord（int * m、int * t）に対して正しく記述するかどうかわかりません。誰も私がコードを修正するのを助けることができますか？ありがとう –