std::thread not working on linux eclipse

Question

I have no idea why, but after including c++11 to my project in eclipse and working with the new features like std::array<>, it suddenly wont work when I use std::thread.

Here is the example I'm trying to run:

#include <iostream>
#include <string>
#include <thread>

void print_message_function(const std::string& msg);

int main()
{
    std::string message1 = "Thread 1";
    std::string message2 = "Thread 2";

    std::thread thread1(print_message_function, message1);
    std::thread thread2(print_message_function, message2);

    thread1.join();
    thread2.join();
}

void print_message_function(const std::string& msg)
{
    std::cout << msg << std::endl;
}

No error when compiling and no errors when running(no output too..), but when using the debug tool it crashes on this line:

std::thread thread1(print_message_function, message1);

this is the stack in the time of crash:

Thread [1] (Suspended: Signal 'SIGSEGV' received. Description: Segmentation fault.) 
    5 _dl_fixup()  0x0000003d6920df7c   
    4 _dl_runtime_resolve()  0x0000003d69214625 
    3 std::thread::_M_start_thread()  0x0000003d762b65a7    
    2 std::thread::thread<void (&)(std::string const&), std::string&>() /usr/include/c++/4.4.4/thread:133 0x0000000000402268    
    1 main() /.../Main.cpp:12 0x0000000000401e8d

Why is this happening?

Thread wraps the native threading lib which on linux is pthreads. Not sure how eclipse handles compile options but add -pthread at the end of your compile/link command. — Duck
– Duck, Commented Dec 25, 2013 at 15:01
Found a tutorial here: blog.asteriosk.gr/2009/02/15/… Now all works fine, thanks, post an answer so that question won't stay open forever. — MoonBun
– MoonBun, Commented Dec 25, 2013 at 15:07

Duck · Accepted Answer · 2013-12-25 15:09:17Z

5

You need to link against the pthreads library with -pthread in your compile command.

answered Dec 25, 2013 at 15:09

Duck

27.7k5 gold badges67 silver badges94 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

juanchopanza Over a year ago

Note, -pthread in not only for linking (Otherwise one could simply use -lpthread. See this SO question for more information.

Collectives™ on Stack Overflow

std::thread not working on linux eclipse

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related