Mac下终端编译C++出错，谁能告诉我怎么问题吗？

[chenhua40269596]

Mac下终端编译C++出错，谁能告诉我怎么问题吗？ 我在终端下写了一个简单的hello world C++程序，在XCODE（5.1.1)下，安装了command line tools 编译没有任何问题，但是在终端下用GCC来编译，就出现一大堆的错误，请各位大大帮我解决一下

Undefined symbols for architecture x86_64:
"std::__1::locale::use_facet(std::__1::locale::id&) const", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::endl<char, std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&) in sum-83941c.o
补充：
"std::__1::ios_base::getloc() const", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::endl<char, std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&) in sum-83941c.o
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__init(unsigned long, char)", referenced from:
std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> > std::__1::__pad_and_output<char, std::__1::char_traits<char> >(std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> >, char const*, char const*, char const*, std::__1::ios_base&, char) in sum-83941c.o
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_string()", referenced from:
std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> > std::__1::__pad_and_output<char, std::__1::char_traits<char> >(std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> >, char const*, char const*, char const*, std::__1::ios_base&, char) in sum-83941c.o
"std::__1::basic_istream<char, std::__1::char_traits<char> >::operator>>(int&)", referenced from:
_main in sum-83941c.o
"std::__1::basic_ostream<char, std::__1::char_traits<char> >::put(char)", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::endl<char, std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&) in sum-83941c.o
"std::__1::basic_ostream<char, std::__1::char_traits<char> >::flush()", referenced from:

std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::endl<char, std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&) in sum-83941c.o
"std::__1::basic_ostream<char, std::__1::char_traits<char> >::sentry::sentry(std::__1::basic_ostream<char, std::__1::char_traits<char> >&)", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
"std::__1::basic_ostream<char, std::__1::char_traits<char> >::sentry::~sentry()", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
"std::__1::basic_ostream<char, std::__1::char_traits<char> >::operator<<(int)", referenced from:
_main in sum-83941c.o
"std::__1::cin", referenced from:
_main in sum-83941c.o
"std::__1::cout", referenced from:
_main in sum-83941c.o
"std::__1::ctype<char>::id", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::endl<char, std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&) in sum-83941c.o
"std::__1::locale::~locale()", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::endl<char, std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&) in sum-83941c.o
"std::__1::ios_base::__set_badbit_and_consider_rethrow()", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
"std::__1::ios_base::clear(unsigned int)", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
"std::terminate()", referenced from:
___clang_call_terminate in sum-83941c.o
"___cxa_begin_catch", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
___clang_call_terminate in sum-83941c.o
"___cxa_end_catch", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
"___gxx_personality_v0", referenced from:
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::operator<<<std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char const*) in sum-83941c.o
std::__1::basic_ostream<char, std::__1::char_traits<char> >& std::__1::endl<char, std::__1::char_traits<char> >(std::__1::basic_ostream<char, std::__1::char_traits<char> >&) in sum-83941c.o
std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> > std::__1::__pad_and_output<char, std::__1::char_traits<char> >(std::__1::ostreambuf_iterator<char, std::__1::char_traits<char> >, char const*, char const*, char const*, std::__1::ios_base&, char) in sum-83941c.o
Dwarf Exception Unwind Info (__eh_frame) in sum-83941c.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
chenhuas-MacBook-Air:~ chenhua$


就是以上的问题，可以帮帮我吗？？？

[sniffer12345]

我觉得。。你应该用g++来编译。。

[ri_aje]

代码和命令行发上来看看。

[chenhua40269596]

引用 2 楼 ri_aje 的回复:

代码和命令行发上来看看。

#include <iostream> int main() { std::cout << "enter the two numbers:" <<std::endl; int v1 = 0, v2 = 0; std::cin >> v1 >> v2 ; std::cout << "the sum of " << v1 << "and" << v2 << " is " << v1+v2 << std::endl; return 0; } 用上面这个就出错了，如果里面不带任何函数，就没问题,像下面这样。 #include <iostream> int main() { return 0; }

[chenhua40269596]

chenhuas-MacBook-Air:~ chenhua$ gcc sum.cpp

[赵4老师]

为什么不用 using namespace std;

[赵4老师]

编译c++代码为什么不用g++

[buyong]

g++

[__cc__]

引用 4 楼 chenhua40269596 的回复:

chenhuas-MacBook-Air:~ chenhua$ gcc sum.cpp

用g++编译才行

[ri_aje]

引用 4 楼 chenhua40269596 的回复:

chenhuas-MacBook-Air:~ chenhua$ gcc sum.cpp

c++ 程序需要用 g++ 编译。