エラーが

Question

I'vaは、このコマンドを使用して、私のKubuntuの11.10でのCppUnitライブラリをインストール

libcppunit-1.12-1 - Unit Testing Library for C++ 
libcppunit-dev - Unit Testing Library for C++ 
libcppunit-doc - Unit Testing Library for C++ 
libcppunit-subunit-dev - SubunitTestProgressListener for CPPUnit - Development headers 
libcppunit-subunit0 - SubunitTestProgressListener for CPPUnit - C++ shared library 
libcunit1 - Unit Testing Library for C 
libcunit1-dev - Unit Testing Library for C -- development files 
libcunit1-doc - Unit Testing Library for C -- documentation 
libcunit1-ncurses - Unit Testing Library for C (ncurses) 
libcunit1-ncurses-dev - Unit Testing Library for C (ncurses) -- development files 
libqxcppunit-dev - A Qt4-based GUI for running tests with CppUnit - development files 
libqxcppunitd1 - A Qt4-based GUI for running tests with CppUnit 

私はユニットテストを研究するための単純なソースファイルを持っている：結果として、apt-cache search cppunitコマンド：私は実行し、この前libcppunitサブユニット-devのlibcppunit-subunit0

をインストールapt-getを

#include <iostream> 
#include <cppunit/TestCase.h> 
#include <cppunit/extensions/HelperMacros.h> 

class MyDate 
{ 
private: 
    struct Duration 
    { 
     int year; 
     int month; 
     int day; 
     Duration(int y, int m, int d) : 
      year(y), month(m), day(d) 
      {} 
    } mdata; 
public: 
    MyDate() : mdata(2011, 11, 15) 
    {} 
    MyDate(int year, int month, int day) : mdata(year, month, day) 
    {} 
    int getYear() const 
    { return mdata.year; } 
    int getMonth() const  
    { return mdata.month; } 
    int getDay() const 
    { return mdata.day; } 
    friend bool operator < (MyDate const& lhs, MyDate const& rhs) 
    { 
     if (lhs.mdata.year > rhs.mdata.year) 
      return false;   
     else if (lhs.mdata.year < rhs.mdata.year) 
      return true; 
     else if (lhs.mdata.year == rhs.mdata.year) 
     { 
      if (lhs.mdata.month > rhs.mdata.month) 
       return false;   
      else if (lhs.mdata.month < rhs.mdata.month) 
       return true; 
      else if (lhs.mdata.month == rhs.mdata.month) 
      { 
       if (lhs.mdata.day < rhs.mdata.day) 
        return true;    
       else 
        return false;   
      } 
     } 
     return false; 
    } 
}; 

class MyDateTest : public CppUnit::TestCase 
{ 
    MyDate mybday; 
    MyDate today; 
public: 
    MyDateTest() : mybday(1951, 10, 1) {} 
    void run() 
    { 
     testOps(); 
    } 
    void testOps() 
    { 
     CPPUNIT_ASSERT(mybday < today); 
    } 
}; 

int main() 
{ 
    MyDateTest test; 
    test.run(); 
    return 0; 
} 

しかし、私は、G ++を使用して、私のcppファイルをコンパイルするとき、私は次のエラーがあります。

$ g++ -Wall -pedantic date_module_test.cpp -o date_module_test 
/tmp/ccLgvOFj.o: In function `MyDateTest::MyDateTest()': 
date_module_test.cpp:(.text._ZN10MyDateTestC2Ev[_ZN10MyDateTestC5Ev]+0xd): undefined reference to `CppUnit::TestCase::TestCase()' 
/tmp/ccLgvOFj.o: In function `MyDateTest::~MyDateTest()': 
date_module_test.cpp:(.text._ZN10MyDateTestD2Ev[_ZN10MyDateTestD5Ev]+0x20): undefined reference to `CppUnit::TestCase::~TestCase()' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x10): undefined reference to `CppUnit::TestCase::run(CppUnit::TestResult*)' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x14): undefined reference to `CppUnit::TestLeaf::countTestCases() const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x18): undefined reference to `CppUnit::TestLeaf::getChildTestCount() const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x1c): undefined reference to `CppUnit::Test::getChildTestAt(int) const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x20): undefined reference to `CppUnit::TestCase::getName() const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x24): undefined reference to `CppUnit::Test::findTestPath(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, CppUnit::TestPath&) const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x28): undefined reference to `CppUnit::Test::findTestPath(CppUnit::Test const*, CppUnit::TestPath&) const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x2c): undefined reference to `CppUnit::Test::findTest(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x30): undefined reference to `CppUnit::Test::resolveTestPath(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x34): undefined reference to `CppUnit::Test::checkIsValidIndex(int) const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x38): undefined reference to `CppUnit::TestLeaf::doGetChildTestAt(int) const' 
/tmp/ccLgvOFj.o:(.rodata._ZTV10MyDateTest[vtable for MyDateTest]+0x3c): undefined reference to `CppUnit::TestCase::runTest()' 
/tmp/ccLgvOFj.o:(.rodata._ZTI10MyDateTest[typeinfo for MyDateTest]+0x8): undefined reference to `typeinfo for CppUnit::TestCase' 
collect2: ld returned 1 exit status 

問題は何を？

Answer 1

正しいCPPUnit静的ライブラリとのリンクをg ++に指示する必要があります。