This patch implements built-in trait for std::is_arithmetic.
gcc/cp/ChangeLog:
* cp-trait.def: Define __is_arithmetic.
* constraint.cc (diagnose_trait_expr): Handle CPTK_IS_ARITHMETIC.
* semantics.cc (trait_expr_value): Likewise.
(finish_trait_expr): Likewise.
gcc/testsuite/ChangeLog:
* g++.dg/ext/has-builtin-1.C: Test existence of __is_arithmetic.
* g++.dg/ext/is_arithmetic.C: New test.
Signed-off-by: Ken Matsui <kmat...@gcc.gnu.org>
---
gcc/cp/constraint.cc | 3 +++
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/is_arithmetic.C | 33 ++++++++++++++++++++++++
5 files changed, 44 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/ext/is_arithmetic.C
diff --git a/gcc/cp/constraint.cc b/gcc/cp/constraint.cc
index c9d627fa782..3a7f968eae8 100644
--- a/gcc/cp/constraint.cc
+++ b/gcc/cp/constraint.cc
@@ -3714,6 +3714,9 @@ diagnose_trait_expr (tree expr, tree args)
case CPTK_IS_AGGREGATE:
inform (loc, " %qT is not an aggregate", t1);
break;
+ case CPTK_IS_ARITHMETIC:
+ inform (loc, " %qT is not an arithmetic type", t1);
+ break;
case CPTK_IS_ARRAY:
inform (loc, " %qT is not an array", t1);
break;
diff --git a/gcc/cp/cp-trait.def b/gcc/cp/cp-trait.def
index c60724e869e..b2be7b7bbd7 100644
--- a/gcc/cp/cp-trait.def
+++ b/gcc/cp/cp-trait.def
@@ -59,6 +59,7 @@ DEFTRAIT_EXPR (HAS_UNIQUE_OBJ_REPRESENTATIONS,
"__has_unique_object_representati
DEFTRAIT_EXPR (HAS_VIRTUAL_DESTRUCTOR, "__has_virtual_destructor", 1)
DEFTRAIT_EXPR (IS_ABSTRACT, "__is_abstract", 1)
DEFTRAIT_EXPR (IS_AGGREGATE, "__is_aggregate", 1)
+DEFTRAIT_EXPR (IS_ARITHMETIC, "__is_arithmetic", 1)
DEFTRAIT_EXPR (IS_ARRAY, "__is_array", 1)
DEFTRAIT_EXPR (IS_ASSIGNABLE, "__is_assignable", 2)
DEFTRAIT_EXPR (IS_BASE_OF, "__is_base_of", 2)
diff --git a/gcc/cp/semantics.cc b/gcc/cp/semantics.cc
index 83ed674b9d4..deab0134509 100644
--- a/gcc/cp/semantics.cc
+++ b/gcc/cp/semantics.cc
@@ -12143,6 +12143,9 @@ trait_expr_value (cp_trait_kind kind, tree type1, tree
type2)
case CPTK_IS_AGGREGATE:
return CP_AGGREGATE_TYPE_P (type1);
+ case CPTK_IS_ARITHMETIC:
+ return ARITHMETIC_TYPE_P (type1);
+
case CPTK_IS_ARRAY:
return type_code1 == ARRAY_TYPE;
@@ -12406,6 +12409,7 @@ finish_trait_expr (location_t loc, cp_trait_kind kind,
tree type1, tree type2)
return error_mark_node;
break;
+ case CPTK_IS_ARITHMETIC:
case CPTK_IS_ARRAY:
case CPTK_IS_BOUNDED_ARRAY:
case CPTK_IS_CLASS:
diff --git a/gcc/testsuite/g++.dg/ext/has-builtin-1.C
b/gcc/testsuite/g++.dg/ext/has-builtin-1.C
index efce04fd09d..4bc85f4babb 100644
--- a/gcc/testsuite/g++.dg/ext/has-builtin-1.C
+++ b/gcc/testsuite/g++.dg/ext/has-builtin-1.C
@@ -56,6 +56,9 @@
#if !__has_builtin (__is_aggregate)
# error "__has_builtin (__is_aggregate) failed"
#endif
+#if !__has_builtin (__is_arithmetic)
+# error "__has_builtin (__is_arithmetic) failed"
+#endif
#if !__has_builtin (__is_array)
# error "__has_builtin (__is_array) failed"
#endif
diff --git a/gcc/testsuite/g++.dg/ext/is_arithmetic.C
b/gcc/testsuite/g++.dg/ext/is_arithmetic.C
new file mode 100644
index 00000000000..fd35831f646
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/is_arithmetic.C
@@ -0,0 +1,33 @@
+// { dg-do compile { target c++11 } }
+
+#include <testsuite_tr1.h>
+
+using namespace __gnu_test;
+
+#define SA(X) static_assert((X),#X)
+#define SA_TEST_CATEGORY(TRAIT, TYPE, EXPECT) \
+ SA(TRAIT(TYPE) == EXPECT); \
+ SA(TRAIT(const TYPE) == EXPECT); \
+ SA(TRAIT(volatile TYPE) == EXPECT); \
+ SA(TRAIT(const volatile TYPE) == EXPECT)
+
+SA_TEST_CATEGORY(__is_arithmetic, void, false);
+
+SA_TEST_CATEGORY(__is_arithmetic, char, true);
+SA_TEST_CATEGORY(__is_arithmetic, signed char, true);
+SA_TEST_CATEGORY(__is_arithmetic, unsigned char, true);
+SA_TEST_CATEGORY(__is_arithmetic, wchar_t, true);
+SA_TEST_CATEGORY(__is_arithmetic, short, true);
+SA_TEST_CATEGORY(__is_arithmetic, unsigned short, true);
+SA_TEST_CATEGORY(__is_arithmetic, int, true);
+SA_TEST_CATEGORY(__is_arithmetic, unsigned int, true);
+SA_TEST_CATEGORY(__is_arithmetic, long, true);
+SA_TEST_CATEGORY(__is_arithmetic, unsigned long, true);
+SA_TEST_CATEGORY(__is_arithmetic, long long, true);
+SA_TEST_CATEGORY(__is_arithmetic, unsigned long long, true);
+SA_TEST_CATEGORY(__is_arithmetic, float, true);
+SA_TEST_CATEGORY(__is_arithmetic, double, true);
+SA_TEST_CATEGORY(__is_arithmetic, long double, true);
+
+// Sanity check.
+SA_TEST_CATEGORY(__is_arithmetic, ClassType, false);
--
2.42.0
