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authorEric Fiselier <eric@efcs.ca>2015-07-22 22:23:49 +0000
committerEric Fiselier <eric@efcs.ca>2015-07-22 22:23:49 +0000
commit48cf128785c185897c7f4653bb7077d65c77df53 (patch)
tree26814ecf5eb02bd0693ee3b73be5b83115adc18d /libcxx/include/__functional_base
parent4cef26eecaa28a1593f52f7a8cba26a3bc38bd54 (diff)
downloadbcm5719-llvm-48cf128785c185897c7f4653bb7077d65c77df53.tar.gz
bcm5719-llvm-48cf128785c185897c7f4653bb7077d65c77df53.zip
Remove almost everything in <__functional_base_03>
This patch removes a large amount of duplicate code found in both <__functional_base> and <__functional_base_03>. The only code that remains in <__functional_base_03> is the C++03 implementation of __invoke and __invoke_return. llvm-svn: 242951
Diffstat (limited to 'libcxx/include/__functional_base')
-rw-r--r--libcxx/include/__functional_base104
1 files changed, 94 insertions, 10 deletions
diff --git a/libcxx/include/__functional_base b/libcxx/include/__functional_base
index 09424bc025a..3ff2e3504d8 100644
--- a/libcxx/include/__functional_base
+++ b/libcxx/include/__functional_base
@@ -127,11 +127,6 @@ addressof(__unsafe_unretained _Tp& __x) _NOEXCEPT
}
#endif
-#ifdef _LIBCPP_HAS_NO_VARIADICS
-
-#include <__functional_base_03>
-
-#else // _LIBCPP_HAS_NO_VARIADICS
// __weak_result_type
@@ -314,6 +309,8 @@ struct __weak_result_type<_Rp (_Cp::*)(_A1) const volatile>
{
};
+
+#ifndef _LIBCPP_HAS_NO_VARIADICS
// 3 or more arguments
template <class _Rp, class _A1, class _A2, class _A3, class ..._A4>
@@ -358,8 +355,12 @@ struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...) const volatile>
typedef _Rp result_type;
};
+#endif // _LIBCPP_HAS_NO_VARIADICS
+
// __invoke
+#ifndef _LIBCPP_HAS_NO_VARIADICS
+
// bullets 1 and 2
template <class _Fp, class _A0, class ..._Args,
@@ -414,31 +415,79 @@ __invoke(_Fp&& __f, _Args&& ...__args)
{
return _VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...);
}
-
template <class _Tp, class ..._Args>
struct __invoke_return
{
typedef decltype(__invoke(_VSTD::declval<_Tp>(), _VSTD::declval<_Args>()...)) type;
};
+#else // _LIBCPP_HAS_NO_VARIADICS
+
+#include <__functional_base_03>
+
+#endif // _LIBCPP_HAS_NO_VARIADICS
+
+
template <class _Ret>
struct __invoke_void_return_wrapper
{
+#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class ..._Args>
- static _Ret __call(_Args&&... __args)
- {
+ static _Ret __call(_Args&&... __args) {
return __invoke(_VSTD::forward<_Args>(__args)...);
}
+#else
+ template <class _Fn>
+ static _Ret __call(_Fn __f) {
+ return __invoke(__f);
+ }
+
+ template <class _Fn, class _A0>
+ static _Ret __call(_Fn __f, _A0& __a0) {
+ return __invoke(__f, __a0);
+ }
+
+ template <class _Fn, class _A0, class _A1>
+ static _Ret __call(_Fn __f, _A0& __a0, _A1& __a1) {
+ return __invoke(__f, __a0, __a1);
+ }
+
+ template <class _Fn, class _A0, class _A1, class _A2>
+ static _Ret __call(_Fn __f, _A0& __a0, _A1& __a1, _A2& __a2){
+ return __invoke(__f, __a0, __a1, __a2);
+ }
+#endif
};
template <>
struct __invoke_void_return_wrapper<void>
{
+#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class ..._Args>
- static void __call(_Args&&... __args)
- {
+ static void __call(_Args&&... __args) {
__invoke(_VSTD::forward<_Args>(__args)...);
}
+#else
+ template <class _Fn>
+ static void __call(_Fn __f) {
+ __invoke(__f);
+ }
+
+ template <class _Fn, class _A0>
+ static void __call(_Fn __f, _A0& __a0) {
+ __invoke(__f, __a0);
+ }
+
+ template <class _Fn, class _A0, class _A1>
+ static void __call(_Fn __f, _A0& __a0, _A1& __a1) {
+ __invoke(__f, __a0, __a1);
+ }
+
+ template <class _Fn, class _A0, class _A1, class _A2>
+ static void __call(_Fn __f, _A0& __a0, _A1& __a1, _A2& __a2) {
+ __invoke(__f, __a0, __a1, __a2);
+ }
+#endif
};
template <class _Tp>
@@ -463,6 +512,7 @@ public:
_LIBCPP_INLINE_VISIBILITY operator type& () const _NOEXCEPT {return *__f_;}
_LIBCPP_INLINE_VISIBILITY type& get() const _NOEXCEPT {return *__f_;}
+#ifndef _LIBCPP_HAS_NO_VARIADICS
// invoke
template <class... _ArgTypes>
_LIBCPP_INLINE_VISIBILITY
@@ -471,6 +521,39 @@ public:
{
return __invoke(get(), _VSTD::forward<_ArgTypes>(__args)...);
}
+#else
+
+ _LIBCPP_INLINE_VISIBILITY
+ typename __invoke_return<type>::type
+ operator() () const
+ {
+ return __invoke(get());
+ }
+
+ template <class _A0>
+ _LIBCPP_INLINE_VISIBILITY
+ typename __invoke_return0<type&, _A0>::type
+ operator() (_A0& __a0) const
+ {
+ return __invoke<type&, _A0>(get(), __a0);
+ }
+
+ template <class _A0, class _A1>
+ _LIBCPP_INLINE_VISIBILITY
+ typename __invoke_return1<type&, _A0, _A1>::type
+ operator() (_A0& __a0, _A1& __a1) const
+ {
+ return __invoke<type&, _A0, _A1>(get(), __a0, __a1);
+ }
+
+ template <class _A0, class _A1, class _A2>
+ _LIBCPP_INLINE_VISIBILITY
+ typename __invoke_return2<type&, _A0, _A1, _A2>::type
+ operator() (_A0& __a0, _A1& __a1, _A2& __a2) const
+ {
+ return __invoke<type&, _A0, _A1, _A2>(get(), __a0, __a1, __a2);
+ }
+#endif // _LIBCPP_HAS_NO_VARIADICS
};
template <class _Tp> struct __is_reference_wrapper_impl : public false_type {};
@@ -510,6 +593,7 @@ cref(reference_wrapper<_Tp> __t) _NOEXCEPT
return cref(__t.get());
}
+#ifndef _LIBCPP_HAS_NO_VARIADICS
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
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