C ++程序无法编译[重复]

Question

我刚刚开始学习 C++。当我使用 GCC 版本编译以下代码时：gcc (Ubuntu 5.2.1-22ubuntu2) 5.2.1 20151010 我得到这个错误：

gcc tst.cpp -o mytst

/tmp/ccGA15Qf.o: In function `main':
tst.cpp:(.text+0xa): undefined reference to `std::cout'
tst.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*)'
tst.cpp:(.text+0x19): undefined reference to `std::cout'
tst.cpp:(.text+0x1e): 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/ccGA15Qf.o: In function `__static_initialization_and_destruction_0(int, int)':
tst.cpp:(.text+0x4c): undefined reference to `std::ios_base::Init::Init()'
tst.cpp:(.text+0x5b): undefined reference to `std::ios_base::Init::~Init()'
collect2: error: ld returned 1 exit status

这是我的代码：

#include <iostream>

int main ()
{
  std::cout << "Hello World! ";
  std::cout << "I'm a C++ program";
}

出了什么问题？

Answer 1

你应该使用 g++，而不是 gcc 来编译 c++ 文件

Answer 2

'g++ test.cpp -o test'解决了问题