C++程序编译遇到这种提示是什么意思？

Question

wangxiaoxiaodeMacBook-Air:Text_Query wangxiaoxiao$ g++ -std=c++11  main.cpp  TextQuery.cpp QueryResult.cpp Query.cpp Query_base.cpp WordQuery.cpp AndQuery.cpp OrQuery.cpp  -o TextQuery
Undefined symbols for architecture x86_64:
  "operator&(Query const&, Query const&)", referenced from:
      RunQueries(std::basic_ifstream<char, std::char_traits<char> >&) in ccnB7ljN.o
  "operator|(Query const&, Query const&)", referenced from:
      RunQueries(std::basic_ifstream<char, std::char_traits<char> >&) in ccnB7ljN.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status

Answer 1

你的函数定义和调用的参数不同，检查下你的代码。这里你用到了Query的重载，看你调用的代码，是不是类型定义或者使用错了。