XCode std::thread C++
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XCode std::thread C++
提问by Matthijn
For a small project for school I need to create a simple client / server construction which will run on a router (with openWRT) and I am trying to do something with threads in this application.
对于学校的一个小项目，我需要创建一个简单的客户端/服务器结构，它将在路由器（使用 openWRT）上运行，并且我正在尝试使用此应用程序中的线程做一些事情。
My C++ skills are very limited, so I found this on the internetas an basic example.
我的 C++ 技能非常有限，所以我在互联网上找到了这个作为基本示例。
#include <thread>
#include <iostream>
void doSomeWork( void )
{
std::cout << "hello from thread..." << std::endl;
return;
}
int main( int argc, char *argv[] )
{
std::thread t( doSomeWork );
t.join();
return 0;
}
When I try to run this in Xcode (4.5.2) I get the following error:
当我尝试在 Xcode (4.5.2) 中运行它时，出现以下错误：
Attempt to use an deleted function
尝试使用已删除的函数
And it shows some code of:
它显示了一些代码：
__threaad_execute(tuple<_Fp, _Args...>& __t, __tuple_indices<_Indices...>)
{
__invoke(_VSTD::move(_VSTD::get<0>(__t)), _VSTD::move(_VSTD::get<_Indices>(__t))...);
}
I think I need to do something with 'build settings' or 'link library' or something? But I am not quite sure what to do exactly. I thought I might need to set the following settings (which i found here)
我想我需要用“构建设置”或“链接库”之类的东西做些什么？但我不太确定到底该怎么做。我想我可能需要设置以下设置（我在这里找到的）
- In the Build Settings tab for your project, scroll down to "Apple LLVM Compiler 4.1 - Language"
- Set the setting "C++ Language Dialect" to "C++11 [-std=c++11]"
- Set the setting "C++ Standard Library" to "libc++ (LLVM standard C++ library with C++11 support)"
- 在项目的 Build Settings 选项卡中，向下滚动到“Apple LLVM Compiler 4.1 - Language”
- 将设置“C++ 语言方言”设置为“C++11 [-std=c++11]”
- 将设置“C++ 标准库”设置为“libc++（支持 C++11 的 LLVM 标准 C++ 库）”
But those settings where already set.
但是那些设置已经设置好了。
Is there any flag / library or something I am missing?
是否有任何标志/图书馆或我缺少的东西？
回答by bartimar
Use G++ instead of LLVM in XCode. Don't forget to link thread libs (-lpthread - or -pthread, -lrt) in compiler build settings. And count with the differences of thread behaviour across Win/Mac/Linux OS (despite it's POSIX)
在 XCode 中使用 G++ 而不是 LLVM。不要忘记在编译器构建设置中链接线程库（-lpthread - 或 -pthread，-lrt）。并计算 Win/Mac/Linux 操作系统中线程行为的差异（尽管它是 POSIX）
