How to include <atomic> in C++ on Linux?
atomic, c++, gcc, linux, pthreads
Solution
Your post is a little confusing, since you link to a post that says GCC 4.4 is required for `atomic`, yet you are expecting it to work on 4.1.x.
You'll need to upgrade to at least GCC 4.4 for `atomic` support. There is no way to enable support for atomic in GCC 4.1, though you can use `boost::atomic` instead. For future reference, this chart shows which version of GCC supports which C++11 features.
If for some reason you can't upgrade GCC, you could also try using a different compiler altogether (e.g. clang).
Problem
I am trying to include atomic in my C++ pthread program. ``` #include <atomic> ``` But, i got error: error: atomic: No such file or directory I tried : ``` #include <asm/atomic> #include <atomic.h> #include <linux/atomic> #include <util/atomic> #include <stdcatomic> #include <catomic> ``` No one works. My gcc is gcc version 4.1.2 20080704 (Red Hat 4.1.2-52) The post : #include <cstdatomic> "no such file" in ubuntu std::atomic support in g++ 4.4.3 do not work either. ``` And #include <thread> also got : No such file or directory ``` Any help will be appreciated. thanks ! UPDATE, I am trying to install GCC 4.7 on Linux, but in "make check", I got error, ``` autogen -T /remote/mypath/gcc_4_7_2012_5_28/gcc_4_7_new_2012_5_29/trunk/fixincludes/check.tpl , remote/mypath/gcc_4_7_2012_5_28/gcc_4_7_new_2012_5_29/trunk/fixincludes/inclhack.def , make[2]: execvp: autogen: Permission denied, then I tried to install autogen, but got: I need to install guile-devel, then when I installed guile-2.0.5-2.1.src.rpm , I got rpm -ivh guile-2.0.5-2.1.src.rpm, warning: guile-2.0.5-2.1.src.rpm: Header V3 RSA/SHA256 signature: NOKEY, key ID 3dbdc284 error: cannot write to %sourcedir /usr/src/redhat/SOURCES, I cannot get root authorization. ``` Any help will be appreciated. thanks !