C++ std::thread 错误（线程不是 std 的成员）
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/2519607/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
std::thread error (thread not member of std)
提问by luis
I compiled & installed gcc4.4 using macports.
我使用 macports 编译并安装了 gcc4.4。
When I try to compile using -> g++ -g -Wall -ansi -pthread -std=c++0x main.cpp...:
当我尝试使用 -> g++ -g -Wall -ansi -pthread -std=c++0x main.cpp... 进行编译时：
#include <thread>
...
std::thread t(handle);
t.join();
....
The compiler returns:
编译器返回：
cserver.cpp: In member function 'int CServer::run()':
cserver.cpp:48: error: 'thread' is not a member of 'std'
cserver.cpp:48: error: expected ';' before 't'
cserver.cpp:49: error: 't' was not declared in this scope
But std::cout <<...compiles fine..
但std::cout <<...编译正常..
Can anyone help me?
谁能帮我？
回答by Artem Sokolov
gcc does not fully support std::thread yet:
gcc 尚不完全支持 std::thread：
http://gcc.gnu.org/projects/cxx0x.html
http://gcc.gnu.org/projects/cxx0x.html
http://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html
http://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html
Use boost::threadin the meantime.
同时使用boost::thread。
Edit
编辑
Although the following compiled and ran fine for me with gcc 4.4.3:
尽管以下内容在 gcc 4.4.3 下编译并运行良好：
#include <thread>
#include <iostream>
struct F
{
void operator() () const
{
std::cout<<"Printing from another thread"<<std::endl;
}
};
int main()
{
F f;
std::thread t(f);
t.join();
return 0;
}
Compiled with
编译为
g++ -Wall -g -std=c++0x -pthread main.cpp
Output of a.out:
的输出a.out：
Printing from another thread
Can you provide the full code? Maybe there's some obscure issue lurking in those ...s?
你能提供完整的代码吗？也许这些...s中潜伏着一些晦涩的问题？
回答by Tronic
Drop -ansi, it means -std=c++98, which you obviously don't want. It also causes macro __STRICT_ANSI__to be defined and this may change the behavior of the headers, e.g. by disabling C++0x support.
删除-ansi，这意味着 -std=c++98，您显然不想要。它还导致宏__STRICT_ANSI__被定义，这可能会改变头文件的行为，例如通过禁用 C++0x 支持。
回答by Vlad Bezden
I had the same issue on windows using MinGW. I found wrapper classes for in on github mingw-std-threadsIncluding mingw.mutex.h, mingw.thread.h files to global MinGW directory fixed this issue. All I had to do is to include header file and my code stayed the same
我在使用 MinGW 的 Windows 上遇到了同样的问题。我在 github mingw-std-threads上找到了 in 的包装类，包括 mingw.mutex.h、mingw.thread.h 文件到全局 MinGW 目录修复了这个问题。我所要做的就是包含头文件并且我的代码保持不变
#include "mingw.thread.h"
...
std::thread t(handle);
...
