C++ 일반 클래스 링크 오류

Question

Visual C++ 응용 프로그램에서 기존 클래스를 수정하여 제네릭 클래스로 만들었습니다. 이 클래스는 두 개의 다른 모듈에서 사용됩니다. 이 모듈을 따로 컴파일하면 모든 것이 작동합니다. 그러나 Build All을 수행하면 다음과 같은 링커 오류가 발생합니다.

1>Linking... 
1> Creating library C:\ccmdb\prep\g3_v5.3\g3_tools\fc_tools\ZFRTool\ZStackMTI\Debug\ZStackMTI.lib and object C:\ccmdb\prep\g3_v5.3\g3_tools\fc_tools\ZFRTool\ZStackMTI\Debug\ZStackMTI.exp 
1>SerialPort.obj : error LNK2019: unresolved external symbol "public: __thiscall CRingBuffer<unsigned char>::CRingBuffer<unsigned char>(unsigned long)" (??0?$CRingBuffer@E@@QAE@K@Z) referenced in function "public: __thiscall CSerialPort::CSerialPort(void)" (??0CSerialPort@@QAE@XZ) 
1>ZStackMTI.obj : error LNK2001: unresolved external symbol "public: __thiscall CRingBuffer<unsigned char>::CRingBuffer<unsigned char>(unsigned long)" (??0?$CRingBuffer@E@@QAE@K@Z) 
1>SerialPort.obj : error LNK2019: unresolved external symbol "public: __thiscall CRingBuffer<unsigned char>::~CRingBuffer<unsigned char>(void)" (??1?$CRingBuffer@E@@QAE@XZ) referenced in function "public: void * __thiscall CRingBuffer<unsigned char>::`scalar deleting destructor'(unsigned int)" (??_G?$CRingBuffer@E@@QAEPAXI@Z) 
1>ZStackMTI.obj : error LNK2001: unresolved external symbol "public: __thiscall CRingBuffer<unsigned char>::~CRingBuffer<unsigned char>(void)" (??1?$CRingBuffer@E@@QAE@XZ) 
1>SerialPort.obj : error LNK2019: unresolved external symbol "public: unsigned long __thiscall CRingBuffer<unsigned char>::GetBufferItems(void)" (?GetBufferItems@?$CRingBuffer@E@@QAEKXZ) referenced in function "public: unsigned long __thiscall CSerialPort::GetBufferedRxItems(void)" (?GetBufferedRxItems@CSerialPort@@QAEKXZ) 
1>SerialPort.obj : error LNK2019: unresolved external symbol "public: int __thiscall CRingBuffer<unsigned char>::Peek(unsigned char *,unsigned long,unsigned long *)" (?Peek@?$CRingBuffer@E@@QAEHPAEKPAK@Z) referenced in function "public: unsigned long __thiscall CSerialPort::Peek(unsigned char *,unsigned long,unsigned long *)" (?Peek@CSerialPort@@QAEKPAEKPAK@Z) 
1>SerialPort.obj : error LNK2019: unresolved external symbol "public: int __thiscall CRingBuffer<unsigned char>::Remove(unsigned char *,unsigned long,unsigned long *)" (?Remove@?$CRingBuffer@E@@QAEHPAEKPAK@Z) referenced in function "public: unsigned long __thiscall CSerialPort::Read(unsigned char *,unsigned long,unsigned long *)" (?Read@CSerialPort@@QAEKPAEKPAK@Z) 
1>ZStackMTI.obj : error LNK2001: unresolved external symbol "public: int __thiscall CRingBuffer<unsigned char>::Remove(unsigned char *,unsigned long,unsigned long *)" (?Remove@?$CRingBuffer@E@@QAEHPAEKPAK@Z) 
1>SerialPort.obj : error LNK2019: unresolved external symbol "public: int __thiscall CRingBuffer<unsigned char>::Add(unsigned char *,unsigned long,int)" (?Add@?$CRingBuffer@E@@QAEHPAEKH@Z) referenced in function "public: unsigned long __thiscall CSerialPort::Write(unsigned char *,unsigned long)" (?Write@CSerialPort@@QAEKPAEK@Z) 
1>ZStackMTI.obj : error LNK2001: unresolved external symbol "public: int __thiscall CRingBuffer<unsigned char>::Add(unsigned char *,unsigned long,int)" (?Add@?$CRingBuffer@E@@QAEHPAEKH@Z) 
1>SerialPort.obj : error LNK2019: unresolved external symbol "public: int __thiscall CRingBuffer<unsigned char>::Delete(unsigned long)" (?Delete@?$CRingBuffer@E@@QAEHK@Z) referenced in function "public: unsigned long __thiscall CSerialPort::Delete(unsigned long,int)" (?Delete@CSerialPort@@QAEKKH@Z) 
1>SerialPort.obj : error LNK2019: unresolved external symbol "public: int __thiscall CRingBuffer<unsigned char>::Flush(void)" (?Flush@?$CRingBuffer@E@@QAEHXZ) referenced in function "public: unsigned long __thiscall CSerialPort::Flush(int)" (?Flush@CSerialPort@@QAEKH@Z) 
1>ZStackMTI.obj : error LNK2019: unresolved external symbol "public: unsigned char __thiscall CRingBuffer<unsigned char>::Peek(unsigned long)" (?Peek@?$CRingBuffer@E@@QAEEK@Z) referenced in function "unsigned long __cdecl ZBNConnect_GetExtAddr(unsigned char *)" (?ZBNConnect_GetExtAddr@@YAKPAE@Z) 
1>C:\ccmdb\prep\g3_v5.3\g3_tools\fc_tools\ZFRTool\ZStackMTI\Debug\ZStackMTI.dll : fatal error LNK1120: 9 unresolved externals 
1>Build log was saved at "file://c:\ccmdb\prep\g3_v5.3\g3_tools\fc_tools\ZFRTool\ZStackMTI\ZStackMTI\Debug\BuildLog.htm" 
1>ZStackMTI - 14 error(s), 0 warning(s) 

Visual Studio 2008을 사용하고 있습니다.이 문제를 해결하는 방법을 알고 있습니까? 수정 이전에는 모든 것이 아무런 문제없이 구축되고 연결되었습니다. 감사.

Answer 1

헤더 파일에 템플릿 함수를 구현하십시오.

는

컴파일러는 템플릿에서 실제 클래스을 만들 때 전체 클래스 템플릿을 참조 할 필요가있다. 예 : Why should the implementation and the declaration of a template class be in the same header file?

Answer 2

이것은 링커가 구체적인 클래스의 메서드 본문을 찾을 수 없기 때문일 수 있습니다.

한 가지 해결 방법은 템플릿 기반 클래스의 구체적인 인스턴스를 선언 할 때 .h 파일 대신 실제 .cpp 파일을 포함시키는 것입니다.