cxx11: Don't constexpr-ify functions that return void before C++14

lhmouse · lhmouse · commit 5a5f8a8fbe9b · 2024-01-18T00:11:56.000+08:00
diff --git a/mcfgthread/cxx11.hpp b/mcfgthread/cxx11.hpp
@@ -81,15 +81,15 @@ class thread_specific_ptr;  // inspired by boost
 #else  // std::invoke
 
 template<class _Member, class _Class, class... _Args>
-constexpr
+__MCF_CXX14(constexpr)
 void
 __void_invoke(_Member _Class::* __memp, _Args&&... __args)
   {
     ::std::mem_fn(__memp) (::std::forward<_Args>(__args)...);
   }
 
 template<class _Callable, class... _Args>
-constexpr
+__MCF_CXX14(constexpr)
 void
 __void_invoke(_Callable&& __callable, _Args&&... __args)
   {

Original file line number	Diff line number	Diff line change
`@@ -81,15 +81,15 @@ class thread_specific_ptr; // inspired by boost`
`81`	`81`	`#else // std::invoke`
`82`	`82`
`83`	`83`	`template<class _Member, class _Class, class... _Args>`
`84`		`-constexpr`
	`84`	`+__MCF_CXX14(constexpr)`
`85`	`85`	`void`
`86`	`86`	`__void_invoke(_Member _Class::* __memp, _Args&&... __args)`
`87`	`87`	`{`
`88`	`88`	`::std::mem_fn(__memp) (::std::forward<_Args>(__args)...);`
`89`	`89`	`}`
`90`	`90`
`91`	`91`	`template<class _Callable, class... _Args>`
`92`		`-constexpr`
	`92`	`+__MCF_CXX14(constexpr)`
`93`	`93`	`void`
`94`	`94`	`__void_invoke(_Callable&& __callable, _Args&&... __args)`
`95`	`95`	`{`