I'm learning C/C++, tried to compile (http://ideone.com/T1xVLz http://ideone.com/T1xVLz) your code in ubuntu, with gcc-4.8, and an error about copy_n is not dec

I'm learning C/C++, tried to compile (http://ideone.com/T1xVLz http://ideone.com/T1xVLz) your code in ubuntu, with gcc-4.8, and an error about copy_n is not declared in this scope was raised. error: ‘copy_n’ was not declared in this scope what is the problem? Is it something to do with gcc-4.8 and shared libs? Thanks