g ++编译错误 [英] g++ compile error

问题描述

我是Ubuntu的新手。
我试图编译一个简单的Hello World！ Ubuntu 11.04中的c ++代码（在终端中）：

  gcc -Wall -W -Werror tex.cpp -o tex。但是编译器返回了很多错误：
 
  

/tmp/ccL8c1p8.o：在函数main中：
tex.cpp :(。text + 0xa）：未定义引用`std :: cout'
tex.cpp :(。text + 0xf）：未定义引用`std :: basic_ostream< char，std :: char_traits< char> >& std :: operator<< < std :: char_traits< char> >（std :: basic_ostream< char，std :: char_traits< char>& char，char const *）'
/tmp/ccL8c1p8.o：在函数`__static_initialization_and_destruction_0（int，int） b $ b tex.cpp :(。text + 0x3d）：未定义引用`std :: ios_base :: Init :: Init（）'
tex.cpp :(。text + 0x42）：未定义引用` std :: ios_base :: Init ::〜Init（）'
collect2：ld返回1退出状态
mohrd @ mio：〜$ gcc -Wall -W -Werror tex.cpp -o tex。
/tmp/ccEke5JP.o：在函数`main'中：
tex.cpp :( .text + 0xa）：未定义引用`std :: cout'
tex.cpp .text + 0xf）：未定义引用`std :: basic_ostream< char，std :: char_traits< char> >& std :: operator<< < std :: char_traits< char> >（std :: basic_ostream< char，std :: char_traits< char>& char，char const *）'
/tmp/ccEke5JP.o：在函数`__static_initialization_and_destruction_0（int，int） b $ b tex.cpp :(。text + 0x3d）：未定义引用`std :: ios_base :: Init :: Init（）'
tex.cpp :(。text + 0x42）：未定义引用` std :: ios_base :: Init ::〜Init（）'
collect2：ld返回1退出状态


$ b b

简单代码：

  #include< algorithm> 
 #include< iostream> 
 using namespace std; 
 
 int main（）
 {
 std :: cout< 你好，世界！; 
 return 0; 
} 
  

为什么？我应该怎么办？

很多谢谢...

解决方案

您需要使用g ++（或c ++）命令来编译您的程序，使用gcc将编译为c ++，因为.cpp扩展而不是链接在所需的c ++库中。

I'm a newbie in Ubuntu. I tried to compile a simple "Hello World!" c++ code in Ubuntu 11.04, with that code (in terminal):

gcc -Wall -W -Werror tex.cpp -o tex. 

but compiler returned a lot of errors :

/tmp/ccL8c1p8.o: In function `main':
tex.cpp:(.text+0xa): undefined reference to `std::cout'
tex.cpp:(.text+0xf): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
/tmp/ccL8c1p8.o: In function `__static_initialization_and_destruction_0(int, int)':
tex.cpp:(.text+0x3d): undefined reference to `std::ios_base::Init::Init()'
tex.cpp:(.text+0x42): undefined reference to `std::ios_base::Init::~Init()'
collect2: ld returned 1 exit status
mohrd@mio:~$ gcc -Wall -W -Werror tex.cpp -o tex.
/tmp/ccEke5JP.o: In function `main':
tex.cpp:(.text+0xa): undefined reference to `std::cout'
tex.cpp:(.text+0xf): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'
/tmp/ccEke5JP.o: In function `__static_initialization_and_destruction_0(int, int)':
tex.cpp:(.text+0x3d): undefined reference to `std::ios_base::Init::Init()'
tex.cpp:(.text+0x42): undefined reference to `std::ios_base::Init::~Init()'
collect2: ld returned 1 exit status

simple code :

#include <algorithm>
#include <iostream>
using namespace std;

int main ()
{
  std::cout << "Hello World!";
  return 0;
}

Why? and what should I do???

many thanks ...

解决方案

You need to use the g++ (or c++) command to compile your program, using "gcc" will compile it as c++ due to the .cpp extension but not link in the required c++ libraries.

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