CODEWITHSUNDEEP
c++multithreadingc++11
Sambhav jain
Sambhav jain

Reputation: 932

Segmentation Fault while creating thread using #include<thread>

I am new to C++ multithreading. I wrote a simple program to print hello world using threads.

<<mythread.cpp>>

#include<iostream>
#include<thread>
using namespace std;
void hello()
{
std::cout<<"Hi this is a thread";
}


int main()
{

std::thread mythread(hello);
cout<<'1';
if (mythread.joinable())
        {
        cout<<'2';
         mythread.join();
        cout<<'3';
        }

return 0;
}

Copilation command : g++ -std=c++0x mythread.cpp

It compiled successfully but gave Segmentaion fault at run time.

I check the core file :

(gdb) bt
#0  0x0000003ac340df7c in _dl_fixup () from /lib64/ld-linux-x86-64.so.2
#1  0x0000003ac3414625 in _dl_runtime_resolve () from /lib64/ld-linux-x86-64.so.2
#2  0x0000003ac84b65c7 in std::thread::_M_start_thread(std::shared_ptr<std::thread::_Impl_base>) () from /usr/lib64/libstdc++.so.6
#3  0x00000000004010d0 in std::thread::thread<void (*)()>(void (*)()) ()
#4  0x0000000000400e15 in main ()

Kindly help me to resolve this error it seems to be some library is not supportive.

Upvotes: 3

Views: 1374

Answers (1)

Stas
Stas

Reputation: 11771

The program looks correct. Compile it with -pthread flag:

g++ -pthread -std=c++11 mythread.cpp

Upvotes: 5

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