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-rw-r--r--external/glim/raii.hpp34
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diff --git a/external/glim/raii.hpp b/external/glim/raii.hpp
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-#include <functional>
-namespace glim {
-
-// http://stackoverflow.com/questions/2121607/any-raii-template-in-boost-or-c0x/
-
-/// RAII helper. Keeps the functor and runs it in the destructor.
-/// Example: \code auto unmap = raiiFun ([&]() {munmap (fd, size);}); \endcode
-template<typename Fun> struct RAIIFun {
- Fun _fun;
- RAIIFun (RAIIFun&&) = default;
- RAIIFun (const RAIIFun&) = default;
- template<typename FunArg> RAIIFun (FunArg&& fun): _fun (std::forward<Fun> (fun)) {}
- ~RAIIFun() {_fun();}
-};
-
-/// The idea to name it `finally` comes from http://www.codeproject.com/Tips/476970/finally-clause-in-Cplusplus.
-/// Example: \code finally unmap ([&]() {munmap (fd, size);}); \endcode
-typedef RAIIFun<std::function<void(void)>> finally;
-
-/// Runs the given functor when going out of scope.
-/// Example: \code
-/// auto closeFd = raiiFun ([&]() {close (fd);});
-/// auto unmap = raiiFun ([&]() {munmap (fd, size);});
-/// \endcode
-template<typename Fun> RAIIFun<Fun> raiiFun (const Fun& fun) {return RAIIFun<Fun> (fun);}
-
-/// Runs the given functor when going out of scope.
-/// Example: \code
-/// auto closeFd = raiiFun ([&]() {close (fd);});
-/// auto unmap = raiiFun ([&]() {munmap (fd, size);});
-/// \endcode
-template<typename Fun> RAIIFun<Fun> raiiFun (Fun&& fun) {return RAIIFun<Fun> (std::move (fun));}
-
-}