Why Does My g std::thread Code Fail to Link on Linux, and How Can I Fix It?

Linking Options for std::thread in GCC on Linux

Encountering a "terminate called" error when attempting to run std::thread code in G ? Let's delve into the issue.

The code provided utilizes std::thread, which is typically implemented using pthreads on Linux. To resolve the linking issue, the -pthread compiler option is necessary. This option informs the compiler to link against the pthreads library.

Crucially, the -pthread option must be placed after the source files to ensure proper linking:

g++ -std=c++0x test.cpp -pthread

This will instruct the compiler to link the program with the pthreads library, enabling the use of std::thread. Without this option, the linker will fail to find the necessary symbols from the pthreads library, resulting in the observed error.

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