Question

所以我尝试了 Linux C ++编译器，这在编译以下代码时发生了：

#include <iostream> 
using namespace std;
int main(){
cout<<"Hello World!\n"<<endl;
return 0;
}  



ceibal@ceibal:~$ gcc HelloWorld.cpp
/tmp/cc78Dkhk.o: In function `main':
HelloWorld.cpp:(.text+0xa): undefined reference to `std::cout'
HelloWorld.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*)'
HelloWorld.cpp:(.text+0x14): 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> >&)'
HelloWorld.cpp:(.text+0x1c): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::operator<<(std::basic_ostream<char, std::char_traits<char> >& (*)(std::basic_ostream<char, std::char_traits<char> >&))'
/tmp/cc78Dkhk.o: In function `__static_initialization_and_destruction_0(int, int)':
HelloWorld.cpp:(.text+0x4a): undefined reference to `std::ios_base::Init::Init()'
HelloWorld.cpp:(.text+0x4f): undefined reference to `std::ios_base::Init::~Init()'
collect2: ld devolvió el estado de salida 1
ceibal@ceibal:~$ pico HelloWorld.cpp
ceibal@ceibal:~$ gcc HelloWorld.cpp
HelloWorld.cpp:3:1: error: expected ‘;’ before ‘int’
ceibal@ceibal:~$ pico HelloWorld.cpp
ceibal@ceibal:~$ gcc HelloWorld.cpp
/tmp/ccIivRal.o: In function `main':
HelloWorld.cpp:(.text+0xa): undefined reference to `std::cout'
HelloWorld.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*)'
HelloWorld.cpp:(.text+0x14): 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> >&)'
HelloWorld.cpp:(.text+0x1c): undefined reference to `std::basic_ostream<char, std::char_traits<char> >::operator<<(std::basic_ostream<char, std::char_traits<char> >& (*)(std::basic_ostream<char, std::char_traits<char> >&))'
/tmp/ccIivRal.o: In function `__static_initialization_and_destruction_0(int, int)':
HelloWorld.cpp:(.text+0x4a): undefined reference to `std::ios_base::Init::Init()'
HelloWorld.cpp:(.text+0x4f): undefined reference to `std::ios_base::Init::~Init()'
collect2: ld devolvió el estado de salida 1

我尝试使用相同的程序，但是在C上它运行得很好，但是只要我将它翻译成c ++就会发生这种情况。

Answer 1

$ gcc HelloWorld.cpp

这会调用C编译器，但您的代码是使用C ++编写的。使用g++来调用C ++编译器。

$ g++ HelloWorld.cpp

在ubuntu的shell上编译cli程序时的问题

1 个答案: