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من در حال خواندن کتاب how to c++ deitel & deitel هستم .
در قسمت:
Fig03_11_13
به مشکل کامپایل نشدن فایلها برخوردم.
نرم افزار: ماکروسافت ویژوال استدیو 2010
پروژه:
win32 concole application
فایلها بدین صورت هستند:
fig03_13.cpp
#include "stdafx.h"
#include <iostream>
using std::cout;
using std::endl;
#include "GradeBook.h" // include definition of class GradeBook
int main()
{
GradeBook gradeBook1( "CS101 Introduction to C++ Programming" );
GradeBook gradeBook2( "CS102 Data Structures in C++" );
cout << "gradeBook1 created for course: " << gradeBook1.getCourseName()
<< "\ngradeBook2 created for course: " << gradeBook2.getCourseName()
<< endl;
return 0;
}
GradeBook.cpp
#include <iostream>
using std::cout;
using std::endl;
#include "GradeBook.h"
GradeBook::GradeBook( string name )
{
setCourseName( name );
}
void GradeBook::setCourseName( string name )
{
courseName = name;
}
string GradeBook::getCourseName()
{
return courseName;
}
void GradeBook::displayMessage()
{
cout << "Welcome to the grade book for\n" << getCourseName()
<< "!" << endl;
}
GradeBook.h
#include <string>
using std::string;
class GradeBook
{
public:
GradeBook( string );
void setCourseName( string );
string getCourseName();
void displayMessage();
private:
string courseName;
};
این هم اروری که میده:
1>------ Build started: Project: B, Configuration: Debug Win32 ------
1>Build started 2011/07/07 07:12:39 ب.ظ.
1>InitializeBuildStatus:
1> Touching "Debug\B.unsuccessfulbuild".
1>ClCompile:
1> All outputs are up-to-date.
1> B.cpp
1>ManifestResourceCompile:
1> All outputs are up-to-date.
1>B.obj : error LNK2019: unresolved external symbol "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall GradeBook::getCourseName(void)" (?getCourseName@GradeBook@@QAE?AV?$basic_string@DU ?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) referenced in function _main
1>B.obj : error LNK2019: unresolved external symbol "public: __thiscall GradeBook::GradeBook(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (??0GradeBook@@QAE@V?$basic_string@DU?$char_traits @D@std@@V?$allocator@D@2@@std@@@Z) referenced in function _main
1>c:\documents and settings\hamid\my documents\visual studio 2010\Projects\B\Debug\B.exe : fatal error LNK1120: 2 unresolved externals
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.46
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
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