Drop a remnant of gcc48 support in futures

[folly.git] / folly / futures / Future-pre.h

diff --git a/folly/futures/Future-pre.h b/folly/futures/Future-pre.h
index 09fa06674957f478d2d8900d678db8173311df7b..3eb9056e509eaceb6fef70500582cb263acb2409 100644 (file)
--- a/folly/futures/Future-pre.h
+++ b/folly/futures/Future-pre.h
@@ -136,25 +136,6 @@ struct Extract<R (&)(Args...)> {
   typedef typename ArgType<Args...>::FirstArg FirstArg;
 };
 
-// gcc-4.8 refuses to capture a function reference in a lambda. This can be
-// mitigated by casting them to function pointer types first. The following
-// helper is used in Future.h to achieve that where necessary.
-// When compiling with gcc versions 4.9 and up, as well as clang, we do not
-// need to apply FunctionReferenceToPointer (i.e. T can be used instead of
-// FunctionReferenceToPointer<T>).
-// Applying FunctionReferenceToPointer first, the code works on all tested
-// compiler versions: gcc 4.8 and above, cland 3.5 and above.
-
-template <typename T>
-struct FunctionReferenceToPointer {
-  using type = T;
-};
-
-template <typename R, typename... Args>
-struct FunctionReferenceToPointer<R (&)(Args...)> {
-  using type = R (*)(Args...);
-};
-
 } // namespace detail
 } // namespace futures