Question

CentOS6.4中，g++编译问题，如何解决？求解。。。

前几天还好好的，今天g++出问题了，编译c++文件出现以下信息：
[root@localhost maptest]# g++ hello.cpp
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/bits/localefwd.h:42,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/ios:42,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/ostream:40,
from /usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/iostream:40,
from hello.cpp:3:
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/x86_64-redhat-linux/bits/c++locale.h:52: error: ‘uselocale’ was not declared in this scope
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/x86_64-redhat-linux/bits/c++locale.h:52: error: invalid type in declaration before ‘;’ token
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/x86_64-redhat-linux/bits/c++locale.h: In function ‘int std::__convert_from_v(__locale_struct* const&, char*, int, const char*, ...)’:
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/x86_64-redhat-linux/bits/c++locale.h:72: error: ‘__gnu_cxx::__uselocale’ cannot be used as a function
/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/x86_64-redhat-linux/bits/c++locale.h:97: error: ‘__gnu_cxx::__uselocale’ cannot be used as a function
hello.cpp文件内容如下：
#include <iostream>
using namespace std;
int main(){
cout<<"Hello, world!"<<endl;
return 0;
}

Answer 1

第一安装的时候存在安装不完整，第二你应该不是在终端中运行的，如果是的话，你可以安装一个编程软件试试。可以检查具体是什么原因

Answer 2

文件丢失。重新安装

追问

我把gcc全部卸载后，重装gcc，使用g++时，还是有这个问题。

追答

你的安装文件里自带的库文件也许出问题了。建议重新下新的。