Question

我有一个类，我试图定义自定义类型的几个静态/ const对象。头文件看起来大致如下：

#ifndef SRC_TEMPCONT_HXX
#define SRC_TEMPCONT_HXX

class TC
{
public:

// ... misc stuff ...

  class Register
  {
  public:

    //... misc stuff ...

    enum Access { Read=0x1, Write=0x2, ReadWrite=0x3 };

    //constructor
    Register(uint16_t address, Access access, size_t size);

    //series of static variables
    static Register 
    Setpoint1, SetpointSafetyCheck, Temperature,
      SecurityByte, RampByte, DisplayByte, DisplayState, Model,
      CommAddress, CommBaud, CommDataType, CommDebug,
      ProgramRun,
       Input, Unit,
      SoftwareVersion,
      MaxProgram, Program;

  };

};


#endif //TEMPCONT_HXX

在cxx文件中，我实例化了这样的变量：

TC::Register TC::Register::Setpoint1           (0x007F, ReadWrite, 2);
TC::Register TC::Register::SetpointSafetyCheck (0x0125, ReadWrite, 1);
TC::Register TC::Register::Temperature         (0x001C, Read,      2);
//etc...

我的makefile使用以下命令编译，我认为这是正确的：

g++ -g -Wall -DOS_LINUX -g -lm -lz -lutil -lnsl -lpthread -lrt -Isrc -I/home/deap/ovendaq/midas/include -I/home/deap/ovendaq/midas/drivers/divers src/obj/cont_test.o src/obj/TempCont.o src/obj/TimeoutSerial.o -L/home/deap/ovendaq/midas/linux-m64/lib -lmidas -lboost_system -lboost_program_options -o bin/cont_test.exe

但是我为每个变量得到了这个奇怪的错误：

src/obj/TempCont.o:/usr/include/boost/noncopyable.hpp:24: multiple definition of `TC::Register::Setpoint1'
src/obj/cont_test.o:/home/deap/dev/OvenProject/src/cont_test.cxx:14: first defined here
src/obj/TempCont.o:/usr/include/boost/system/error_code.hpp:350: multiple definition of `TC::Register::SetpointSafetyCheck'
src/obj/cont_test.o:/home/deap/dev/OvenProject/src/cont_test.cxx:16: first defined here
src/obj/TempCont.o:/usr/include/boost/exception/exception.hpp:344: multiple definition of `TC::Register::Temperature'
src/obj/cont_test.o:/home/deap/dev/OvenProject/src/cont_test.cxx:18: first defined here
//etc...

为什么它似乎认为我在升级库中声明了变量？我已经在一个简化的程序中测试了这个完全相同的结构并且它工作正常，但我无法弄清楚为什么它在这里不起作用。我做错了什么？

TIA

c ++与静态成员变量的奇怪错误

0 个答案: