Question

嗨我想知道哪一部分错了？将我的头文件分成.h和.cpp后，编译器无法正常工作，因为它们只是构造函数，因此我将它们全部放在我的.h文件中。谢谢！

Graphnode.h：

#ifndef Graphnode_H
#define Graphnode_H

#include <tr1/array>

//using namespace std;
class Graphnode {

public:
    std::tr1::array<char, 16> state;
    char x;
    char depth;
    char direction;
    Graphnode(std::tr1::array<char, 16> _state,char _x,char _d,char _direction);
    Graphnode();

};

#endif

Graphnode.cpp：

#include "Graphnode.h"

Graphnode::Graphnode()
{
    int i=0;
    for(i=0;i<16;i++)
    {
        state[i] = 0;
    }
    x = 0;
    depth = 0;
    direction = 0;
}

Graphnode::Graphnode(std::tr1::array<char, 16> _state,char _x,char _d,char _direction)
{
    int i=0;
    for(i=0;i<16;i++)
    {
        state[i] = _state[i];
    }
    x = _x;
    depth = _d;
    direction = _direction;
}

错误：

ZION:ods_v3 weeo$ make local
mpic++ -o local ods_v3.cpp -L/opt/local/lib/  -lboost_iostreams-mt -lz -I/opt/local/include
Undefined symbols for architecture x86_64:
  "Graphnode::Graphnode(std::tr1::array<char, 16ul>, char, char, char)", referenced from:
      _main in ods_v3-semJJ5.o
  "Graphnode::Graphnode()", referenced from:
      bfs(Graphnode, std::tr1::array<char, 16ul>, char, std::queue<Graphnode, std::deque<Graphnode, std::allocator<Graphnode> > >&) in ods_v3-semJJ5.o
      dfs(Graphnode, std::tr1::array<char, 16ul>, char, std::queue<Graphnode, std::deque<Graphnode, std::allocator<Graphnode> > >, std::queue<Graphnode, std::deque<Graphnode, std::allocator<Graphnode> > >, std::tr1::array<std::tr1::unordered_map<std::string, char, std::tr1::hash<std::string>, std::equal_to<std::string>, std::allocator<std::pair<std::string const, char> >, false>, 2000ul>) in ods_v3-semJJ5.o
      readcheckfile(char const*, std::queue<Graphnode, std::deque<Graphnode, std::allocator<Graphnode> > >&) in ods_v3-semJJ5.o
      _main in ods_v3-semJJ5.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [local] Error 1

Answer 1

您的makefile看起来已损坏或不完整。输出建议您构建ods_v3.cpp，并且没有跟踪具有mssing定义的Graphnode.cpp发生的任何事情。在构建中包含Graphnode.cpp或在ods_v2.cpp中包含#include.cpp

C ++头文件无法编译？

1 个答案: