Skip to content

Clang support for LWG-3617 function/packaged_task deduction guides and deducing this #5921

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
StephanTLavavej merged 1 commit into from
Dec 1, 2025
Merged

Clang support for LWG-3617 function/packaged_task deduction guides and deducing this #5921

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions stl/inc/type_traits
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -539,7 +539,7 @@ _MEMBER_CALL_CV_REF_NOEXCEPT(_IS_MEMFUNPTR)
_CLASS_DEFINE_CV_REF_NOEXCEPT(_IS_MEMFUNPTR_ELLIPSIS)
#undef _IS_MEMFUNPTR_ELLIPSIS

#if _HAS_CXX23 && !defined(__clang__) // TRANSITION, DevCom-10107077, Clang has not implemented Deducing this
#if _HAS_CXX23
#define _IS_MEMFUNPTR_EXPLICIT_THIS_GUIDES(CALL_OPT, CV_OPT, REF_OPT, NOEXCEPT_OPT) \
template <class _Ret, class _Self, class... _Args> \
struct _Is_memfunptr<_Ret(CALL_OPT*)(_Self, _Args...) NOEXCEPT_OPT> { \
Expand All @@ -553,7 +553,7 @@ _NON_MEMBER_CALL(_IS_MEMFUNPTR_EXPLICIT_THIS_GUIDES, , , noexcept)
#endif // defined(__cpp_noexcept_function_type)

#undef _IS_MEMFUNPTR_EXPLICIT_THIS_GUIDES
#endif // _HAS_CXX23 && !defined(__clang__)
#endif // _HAS_CXX23

#ifdef __clang__
_EXPORT_STD template <class _Ty>
Expand Down
8 changes: 2 additions & 6 deletions tests/std/tests/P0433R2_deduction_guides/test.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -37,10 +37,6 @@
#include <valarray>
#include <vector>

#if _HAS_CXX23 && !defined(__clang__) // TRANSITION, DevCom-10107077, Clang has not implemented Deducing this
#define HAS_EXPLICIT_THIS_PARAMETER
#endif // _HAS_CXX23 && !defined(__clang__)

using namespace std;

template <typename T>
Expand Down Expand Up @@ -327,7 +323,7 @@ void test_function_wrapper() {
static_assert(is_same_v<decltype(f9), F<double(const double&, const double&)>>);
static_assert(is_same_v<decltype(f10), F<int(int, int)>>);

#ifdef HAS_EXPLICIT_THIS_PARAMETER
#if _HAS_CXX23
struct ExplicitThisByVal {
void operator()(this ExplicitThisByVal, char) {}
};
Expand Down Expand Up @@ -409,7 +405,7 @@ void test_function_wrapper() {
static_assert(is_same_v<decltype(f25), F<float(double)>>);
static_assert(is_same_v<decltype(f26), F<float(double)>>);
static_assert(is_same_v<decltype(f27), F<float(double)>>);
#endif // HAS_EXPLICIT_THIS_PARAMETER
#endif // _HAS_CXX23
}

void test_searchers() {
Expand Down