c++对析构函数的未定义引用

Question

对此感到抱歉，但我要重新打开它。对特征误差进行排序后，它又重新出现了。完全相同的代码完全相同的错误。 （好吧，编译器这次找到了特征标头。）所以，同样的问题：

我搜索了析构函数 C++ 和未定义的引用，但无济于事。然而我很确定这对我来说是一个相当简单的失误。

错误：

/tmp/ccDsaJ9v.o: In function `main':
geomSetup.cpp:(.text+0x5ab): undefined reference to `SASAGeometry::~SASAGeometry()'
geomSetup.cpp:(.text+0x5cd): undefined reference to `SASAGeometry::~SASAGeometry()'
collect2: ld returned 1 exit status
make: *** [geomTest] Error 1

SASAGeometry.h：

class SASAGeometry
{
public:
//methods
  SASAGeometry() ;
  int makeFromFiles(char *, char *, char *) ;
  ~SASAGeometry() ;
//globals
  std::list<E......};

SASAGeometry.cpp

SASAGeometry::SASAGeometry(){}

int SASAGeometry::makeFromFiles(char * xyz_file, char * dat_file, char * atoms_file)
{
  sasa_transformMatrix basisMaker ;
  list<Vect...
...
}

SASAGeometry::~SASAGeometry(){}

geomTest.cpp

int main(int argv, char * argc[])
{
  list<Vector3d>::iterator listIterator ;
  char * xyz_file = argc[1] ;
  char * dat_file = argc[2] ;
  char * atoms_file = argc[3] ;
  SASAGeometry geomMaker ;
  int geomErr....

...
return 0 ;
}

makefile：

# compiler choice
CXX = g++

# executable path
BIN = .

# include paths (or lack thereof :p)
INCLUDE = -I .

# compilation flags
CXXFLAGS = -pipe # -O6

# linking flags
LFLAGS = -lm

# object declarations
GeomTest_OBJS = geomTest.o SASAGeometry.o

geomTest_source     = SASAGeometry.cpp SASAGeometry.h sasa_transformMatrix.cpp sasa_transformMatrix.h geomSetup.cpp

SASAGeometry.o  :   SASAGeometry.cpp SASAGeometry.h sasa_transformMatrix.cpp sasa_transformMatrix.h

geomTest.o  :   geomSetup.cpp SASAGeometry.o

# compile 
geomTest    : $(GeomTest_OBJS) makefile
            $(CXX) -o geomTest.o -o SASAGeometry.o $(LIBS) $(INCLUDE) $(CXXFLAGS) $(geomTest_source) $(LFLAGS)
            $(CXX) $(LIBS) $(INCLUDE) $(CXXFLAGS) -o $(BIN)/geomTest geomTest.o SASAGeometry.o $(LFLAGS)

clean       : \rm *.o *~ p1

我的 INCLUDE 和 LIBS 标志都正常，SASAGeometry 类中的所有其他方法都定义得很愉快。

提前致谢。

Answer 1

您没有将 SASAGeometry.cpp 与 geomTest.cpp 一起包含在 makefile 中。 makefile 应该是这样的：

geomTest    : $(GeomTest_OBJS) makefile
            $(CC) -o geomTest.o -o SASAGeometry.o $(LIBS) $(INCLUDE) $(CFLAGS) $(geomTest_source) $(LFLAGS)
            $(CC) $(LIBS) $(INCLUDE) $(CFLAGS) -o $(BIN)/geomTest geomTest.o $(LFLAGS)