From: Ken Matsui <kmatsui@cs.washington.edu>
To: gcc-patches@gcc.gnu.org
Cc: libstdc++@gcc.gnu.org, Ken Matsui <kmatsui@cs.washington.edu>
Subject: [PATCH 1/2] c++: implement __remove_pointer built-in trait
Date: Thu, 15 Jun 2023 05:21:28 -0700 [thread overview]
Message-ID: <20230615122129.20213-1-kmatsui@cs.washington.edu> (raw)
This patch implements built-in trait for std::remove_pointer.
gcc/cp/ChangeLog:
* cp-trait.def: Define __remove_pointer.
* semantics.cc (finish_trait_type): Handle CPTK_REMOVE_POINTER.
gcc/testsuite/ChangeLog:
* g++.dg/ext/has-builtin-1.C: Test existence of __remove_pointer.
* g++.dg/ext/remove_pointer.C: New test.
Signed-off-by: Ken Matsui <kmatsui@cs.washington.edu>
---
gcc/cp/cp-trait.def | 1 +
gcc/cp/semantics.cc | 4 ++
gcc/testsuite/g++.dg/ext/has-builtin-1.C | 3 ++
gcc/testsuite/g++.dg/ext/remove_pointer.C | 51 +++++++++++++++++++++++
4 files changed, 59 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/ext/remove_pointer.C
diff --git a/gcc/cp/cp-trait.def b/gcc/cp/cp-trait.def
index 8b7fece0cc8..07823e55579 100644
--- a/gcc/cp/cp-trait.def
+++ b/gcc/cp/cp-trait.def
@@ -90,6 +90,7 @@ DEFTRAIT_EXPR (IS_DEDUCIBLE, "__is_deducible ", 2)
DEFTRAIT_TYPE (REMOVE_CV, "__remove_cv", 1)
DEFTRAIT_TYPE (REMOVE_REFERENCE, "__remove_reference", 1)
DEFTRAIT_TYPE (REMOVE_CVREF, "__remove_cvref", 1)
+DEFTRAIT_TYPE (REMOVE_POINTER, "__remove_pointer", 1)
DEFTRAIT_TYPE (UNDERLYING_TYPE, "__underlying_type", 1)
DEFTRAIT_TYPE (TYPE_PACK_ELEMENT, "__type_pack_element", -1)
diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc
index 8fb47fd179e..885c7a6fb64 100644
--- a/gcc/cp/semantics.cc
+++ b/gcc/cp/semantics.cc
@@ -12373,6 +12373,10 @@ finish_trait_type (cp_trait_kind kind, tree type1, tree type2,
if (TYPE_REF_P (type1))
type1 = TREE_TYPE (type1);
return cv_unqualified (type1);
+ case CPTK_REMOVE_POINTER:
+ if (TYPE_PTR_P (type1))
+ type1 = TREE_TYPE (type1);
+ return type1;
case CPTK_TYPE_PACK_ELEMENT:
return finish_type_pack_element (type1, type2, complain);
diff --git a/gcc/testsuite/g++.dg/ext/has-builtin-1.C b/gcc/testsuite/g++.dg/ext/has-builtin-1.C
index f343e153e56..e21e0a95509 100644
--- a/gcc/testsuite/g++.dg/ext/has-builtin-1.C
+++ b/gcc/testsuite/g++.dg/ext/has-builtin-1.C
@@ -146,3 +146,6 @@
#if !__has_builtin (__remove_cvref)
# error "__has_builtin (__remove_cvref) failed"
#endif
+#if !__has_builtin (__remove_pointer)
+# error "__has_builtin (__remove_pointer) failed"
+#endif
diff --git a/gcc/testsuite/g++.dg/ext/remove_pointer.C b/gcc/testsuite/g++.dg/ext/remove_pointer.C
new file mode 100644
index 00000000000..7b13db93950
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/remove_pointer.C
@@ -0,0 +1,51 @@
+// { dg-do compile { target c++11 } }
+
+#define SA(X) static_assert((X),#X)
+
+SA(__is_same(__remove_pointer(int), int));
+SA(__is_same(__remove_pointer(int*), int));
+SA(__is_same(__remove_pointer(int**), int*));
+
+SA(__is_same(__remove_pointer(const int*), const int));
+SA(__is_same(__remove_pointer(const int**), const int*));
+SA(__is_same(__remove_pointer(int* const), int));
+SA(__is_same(__remove_pointer(int** const), int*));
+SA(__is_same(__remove_pointer(int* const* const), int* const));
+
+SA(__is_same(__remove_pointer(volatile int*), volatile int));
+SA(__is_same(__remove_pointer(volatile int**), volatile int*));
+SA(__is_same(__remove_pointer(int* volatile), int));
+SA(__is_same(__remove_pointer(int** volatile), int*));
+SA(__is_same(__remove_pointer(int* volatile* volatile), int* volatile));
+
+SA(__is_same(__remove_pointer(const volatile int*), const volatile int));
+SA(__is_same(__remove_pointer(const volatile int**), const volatile int*));
+SA(__is_same(__remove_pointer(const int* volatile), const int));
+SA(__is_same(__remove_pointer(volatile int* const), volatile int));
+SA(__is_same(__remove_pointer(int* const volatile), int));
+SA(__is_same(__remove_pointer(const int** volatile), const int*));
+SA(__is_same(__remove_pointer(volatile int** const), volatile int*));
+SA(__is_same(__remove_pointer(int** const volatile), int*));
+SA(__is_same(__remove_pointer(int* const* const volatile), int* const));
+SA(__is_same(__remove_pointer(int* volatile* const volatile), int* volatile));
+SA(__is_same(__remove_pointer(int* const volatile* const volatile), int* const volatile));
+
+SA(__is_same(__remove_pointer(int&), int&));
+SA(__is_same(__remove_pointer(const int&), const int&));
+SA(__is_same(__remove_pointer(volatile int&), volatile int&));
+SA(__is_same(__remove_pointer(const volatile int&), const volatile int&));
+
+SA(__is_same(__remove_pointer(int&&), int&&));
+SA(__is_same(__remove_pointer(const int&&), const int&&));
+SA(__is_same(__remove_pointer(volatile int&&), volatile int&&));
+SA(__is_same(__remove_pointer(const volatile int&&), const volatile int&&));
+
+SA(__is_same(__remove_pointer(int[3]), int[3]));
+SA(__is_same(__remove_pointer(const int[3]), const int[3]));
+SA(__is_same(__remove_pointer(volatile int[3]), volatile int[3]));
+SA(__is_same(__remove_pointer(const volatile int[3]), const volatile int[3]));
+
+SA(__is_same(__remove_pointer(int(int)), int(int)));
+SA(__is_same(__remove_pointer(int(*const)(int)), int(int)));
+SA(__is_same(__remove_pointer(int(*volatile)(int)), int(int)));
+SA(__is_same(__remove_pointer(int(*const volatile)(int)), int(int)));
--
2.41.0
next reply other threads:[~2023-06-15 12:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-15 12:21 Ken Matsui [this message]
2023-06-15 12:21 ` [PATCH 2/2] libstdc++: use new built-in trait __remove_pointer Ken Matsui
2023-06-17 12:35 ` [PATCH 1/2] c++: implement __remove_pointer built-in trait Ken Matsui
2023-06-20 13:20 ` Ken Matsui
2023-06-20 15:21 ` Patrick Palka
2023-06-24 10:07 ` Ken Matsui
2023-06-24 10:12 ` Ken Matsui
2023-06-24 10:12 ` [PATCH 2/2] libstdc++: use new built-in trait __remove_pointer Ken Matsui
2023-07-08 5:29 ` [PATCH v2 1/2] c++: implement __remove_pointer built-in trait Ken Matsui
2023-07-08 5:29 ` [PATCH v2 2/2] libstdc++: use new built-in trait __remove_pointer Ken Matsui
2023-07-12 10:20 ` Jonathan Wakely
2023-09-04 15:00 ` [PING][PATCH v2 1/2] c++: implement __remove_pointer built-in trait Ken Matsui
-- strict thread matches above, loose matches on Subject: below --
2023-03-20 22:22 [PATCH " Ken Matsui
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