@@ -94,6 +94,7 @@ DEFTRAIT_EXPR (IS_TRIVIALLY_COPYABLE, "__is_trivially_copyable", 1)
DEFTRAIT_EXPR (IS_UNION, "__is_union", 1)
DEFTRAIT_EXPR (REF_CONSTRUCTS_FROM_TEMPORARY, "__reference_constructs_from_temporary", 2)
DEFTRAIT_EXPR (REF_CONVERTS_FROM_TEMPORARY, "__reference_converts_from_temporary", 2)
+DEFTRAIT_TYPE (REMOVE_ALL_EXTENTS, "__remove_all_extents", 1)
DEFTRAIT_TYPE (REMOVE_CV, "__remove_cv", 1)
DEFTRAIT_TYPE (REMOVE_CVREF, "__remove_cvref", 1)
DEFTRAIT_TYPE (REMOVE_EXTENT, "__remove_extent", 1)
@@ -12769,6 +12769,9 @@ finish_trait_type (cp_trait_kind kind, tree type1, tree type2,
type1 = TREE_TYPE (type1);
return build_pointer_type (type1);
+ case CPTK_REMOVE_ALL_EXTENTS:
+ return strip_array_types (type1);
+
case CPTK_REMOVE_CV:
return cv_unqualified (type1);
@@ -164,6 +164,9 @@
#if !__has_builtin (__reference_converts_from_temporary)
# error "__has_builtin (__reference_converts_from_temporary) failed"
#endif
+#if !__has_builtin (__remove_all_extents)
+# error "__has_builtin (__remove_all_extents) failed"
+#endif
#if !__has_builtin (__remove_cv)
# error "__has_builtin (__remove_cv) failed"
#endif
new file mode 100644
@@ -0,0 +1,16 @@
+// { dg-do compile { target c++11 } }
+
+#define SA(X) static_assert((X),#X)
+
+class ClassType { };
+
+SA(__is_same(__remove_all_extents(int), int));
+SA(__is_same(__remove_all_extents(int[2]), int));
+SA(__is_same(__remove_all_extents(int[2][3]), int));
+SA(__is_same(__remove_all_extents(int[][3]), int));
+SA(__is_same(__remove_all_extents(const int[2][3]), const int));
+SA(__is_same(__remove_all_extents(ClassType), ClassType));
+SA(__is_same(__remove_all_extents(ClassType[2]), ClassType));
+SA(__is_same(__remove_all_extents(ClassType[2][3]), ClassType));
+SA(__is_same(__remove_all_extents(ClassType[][3]), ClassType));
+SA(__is_same(__remove_all_extents(const ClassType[2][3]), const ClassType));
This patch implements built-in trait for std::remove_all_extents. gcc/cp/ChangeLog: * cp-trait.def: Define __remove_all_extents. * semantics.cc (finish_trait_type): Handle CPTK_REMOVE_ALL_EXTENTS. gcc/testsuite/ChangeLog: * g++.dg/ext/has-builtin-1.C: Test existence of __remove_all_extents. * g++.dg/ext/remove_all_extents.C: New test. Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org> --- gcc/cp/cp-trait.def | 1 + gcc/cp/semantics.cc | 3 +++ gcc/testsuite/g++.dg/ext/has-builtin-1.C | 3 +++ gcc/testsuite/g++.dg/ext/remove_all_extents.C | 16 ++++++++++++++++ 4 files changed, 23 insertions(+) create mode 100644 gcc/testsuite/g++.dg/ext/remove_all_extents.C