这是什么错误啊?只是一个hello world啊

nickcheng

程序很简单
[code:1]
$ cat hello.cpp
#include <iostream>
using namespace std;
int main()
{
  cout<<"hello world"<<endl;
  return 0;
}

[/code:1]

下面是错误信息

$ gcc hello.cpp
/tmp/cc97HOxw.o(.text+0x14): In function `main':
: undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::endl<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&)'
/tmp/cc97HOxw.o(.text+0x21): In function `main':
: undefined reference to `std::cout'
/tmp/cc97HOxw.o(.text+0x26): In function `main':
: undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std:perator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
/tmp/cc97HOxw.o(.text+0x2f): In function `main':
: undefined reference to `std::basic_ostream<char, std::char_traits<char> >:perator<<(std::basic_ostream<char, std::char_traits<char> >& (*)(std::basic_ostream<char, std::char_traits<char> >&))'
/tmp/cc97HOxw.o(.text+0x5c): In function `__static_initialization_and_destruction_0(int, int)':
: undefined reference to `std::ios_base::Init::Init[in-charge]()'
/tmp/cc97HOxw.o(.text+0x8b): In function `__tcf_0':
: undefined reference to `std::ios_base::Init::~Init [in-charge]()'
/tmp/cc97HOxw.o(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status

这是怎么回事啊??

justcool

用g++来编译啊

goldedge

c++嘛,我只知道在windoze下,linux下不知道.
我想没一本入门的书第一个都是HelloWorld

goodish

[code:1]

#include <iostream>
#include <string>
using namespace std;
int main(void)
{
  cout << "hello world" << endl;
  return 0;
}
[/code:1]

关键是增加 string 头文件

g++ -o temp temp.cc
./temp

wsm

编译器用的不对 你让他怎么链上库啊

Joran

$g++ -o hello hello.cpp
$./hello