The _GLIBCXX_NODISCARD macro only expands to [[__nodiscard__]] for C++17
and later, but all supported compilers will allow us to use that for
C++11 and C++14 too. Enable it for those older standards, to give
improved diagnostics for users of those older standards.
libstdc++-v3/ChangeLog:
* include/bits/c++config (_GLIBCXX_NODISCARD): Expand for C++11
and C++14.
* testsuite/22_locale/locale/cons/12438.cc: Adjust dg-warning to
expect nodiscard warnings for C++11 and C++14 as well.
* testsuite/22_locale/locale/operations/2.cc: Likewise.
* testsuite/25_algorithms/equal/debug/1_neg.cc: Likewise.
* testsuite/25_algorithms/equal/debug/2_neg.cc: Likewise.
* testsuite/25_algorithms/equal/debug/3_neg.cc: Likewise.
* testsuite/25_algorithms/find_first_of/concept_check_1.cc:
Likewise.
* testsuite/25_algorithms/is_permutation/2.cc: Likewise.
* testsuite/25_algorithms/lexicographical_compare/71545.cc:
Likewise.
* testsuite/25_algorithms/lower_bound/33613.cc: Likewise.
* testsuite/25_algorithms/lower_bound/debug/irreflexive.cc:
Likewise.
* testsuite/25_algorithms/lower_bound/debug/partitioned_neg.cc:
Likewise.
* testsuite/25_algorithms/lower_bound/debug/partitioned_pred_neg.cc:
Likewise.
* testsuite/25_algorithms/minmax/3.cc: Likewise.
* testsuite/25_algorithms/search/78346.cc: Likewise.
* testsuite/25_algorithms/search_n/58358.cc: Likewise.
* testsuite/25_algorithms/unique/1.cc: Likewise.
* testsuite/25_algorithms/unique/11480.cc: Likewise.
* testsuite/25_algorithms/upper_bound/33613.cc: Likewise.
* testsuite/25_algorithms/upper_bound/debug/partitioned_neg.cc:
Likewise.
* testsuite/25_algorithms/upper_bound/debug/partitioned_pred_neg.cc:
Likewise.
* testsuite/27_io/ios_base/types/fmtflags/bitmask_operators.cc:
Likewise.
* testsuite/27_io/ios_base/types/iostate/bitmask_operators.cc:
Likewise.
* testsuite/27_io/ios_base/types/openmode/bitmask_operators.cc:
Likewise.
* testsuite/ext/concept_checks.cc: Likewise.
* testsuite/ext/is_heap/47709.cc: Likewise.
* testsuite/ext/is_sorted/cxx0x.cc: Likewise.
---
Tested x86_64-linux.
Also available for review at:
https://forge.sourceware.org/gcc/gcc-TEST/pulls/22
As a later change, we could replace many uses of _GLIBCXX_DISCARD with
using [[__nodiscard__]] directly, for code that isn't valid in C++98
anyway. Currently we use the macro, because it behaves differently for
C++11/14 and C++17/20/... but this change would remove that difference.
So we could just use the __nodiscard__ attribute directly.
libstdc++-v3/include/bits/c++config | 2 +-
libstdc++-v3/testsuite/22_locale/locale/cons/12438.cc | 2 +-
libstdc++-v3/testsuite/22_locale/locale/operations/2.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/equal/debug/1_neg.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/equal/debug/2_neg.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/equal/debug/3_neg.cc | 2 +-
.../25_algorithms/find_first_of/concept_check_1.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/is_permutation/2.cc | 2 +-
.../25_algorithms/lexicographical_compare/71545.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/lower_bound/33613.cc | 2 +-
.../25_algorithms/lower_bound/debug/irreflexive.cc | 2 +-
.../25_algorithms/lower_bound/debug/partitioned_neg.cc | 2 +-
.../lower_bound/debug/partitioned_pred_neg.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/minmax/3.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/search/78346.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/search_n/58358.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/unique/1.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/unique/11480.cc | 2 +-
libstdc++-v3/testsuite/25_algorithms/upper_bound/33613.cc | 2 +-
.../25_algorithms/upper_bound/debug/partitioned_neg.cc | 2 +-
.../upper_bound/debug/partitioned_pred_neg.cc | 2 +-
.../27_io/ios_base/types/fmtflags/bitmask_operators.cc | 8 ++++----
.../27_io/ios_base/types/iostate/bitmask_operators.cc | 8 ++++----
.../27_io/ios_base/types/openmode/bitmask_operators.cc | 8 ++++----
libstdc++-v3/testsuite/ext/concept_checks.cc | 8 ++++----
libstdc++-v3/testsuite/ext/is_heap/47709.cc | 3 +--
libstdc++-v3/testsuite/ext/is_sorted/cxx0x.cc | 3 +--
27 files changed, 39 insertions(+), 41 deletions(-)
diff --git a/libstdc++-v3/include/bits/c++config
b/libstdc++-v3/include/bits/c++config
index 1076803a865..236906d2f79 100644
--- a/libstdc++-v3/include/bits/c++config
+++ b/libstdc++-v3/include/bits/c++config
@@ -169,7 +169,7 @@
#endif
// Macro to warn about unused results.
-#if __cplusplus >= 201703L
+#if __cplusplus >= 201103L
# define _GLIBCXX_NODISCARD [[__nodiscard__]]
#else
# define _GLIBCXX_NODISCARD
diff --git a/libstdc++-v3/testsuite/22_locale/locale/cons/12438.cc
b/libstdc++-v3/testsuite/22_locale/locale/cons/12438.cc
index 4838e1ba693..72b6b15adf5 100644
--- a/libstdc++-v3/testsuite/22_locale/locale/cons/12438.cc
+++ b/libstdc++-v3/testsuite/22_locale/locale/cons/12438.cc
@@ -45,7 +45,7 @@ void test01(int iters)
locale loc2 = locale("");
VERIFY( !has_facet<MyFacet>(loc2) );
- loc1.combine<MyFacet>(loc2); // { dg-warning "nodiscard" "" { target
c++17 } }
+ loc1.combine<MyFacet>(loc2); // { dg-warning "nodiscard" "" { target
c++11 } }
VERIFY( false );
}
catch (std::runtime_error&)
diff --git a/libstdc++-v3/testsuite/22_locale/locale/operations/2.cc
b/libstdc++-v3/testsuite/22_locale/locale/operations/2.cc
index 917adecac56..c0a6613eb74 100644
--- a/libstdc++-v3/testsuite/22_locale/locale/operations/2.cc
+++ b/libstdc++-v3/testsuite/22_locale/locale/operations/2.cc
@@ -48,7 +48,7 @@ void test02()
// Derivation, MF check.
locale loc_gnu(loc_c, new gnu_collate);
gnu_count = 0;
- loc_gnu(s01, s02); // { dg-warning "nodiscard" "" { target c++17 } }
+ loc_gnu(s01, s02); // { dg-warning "nodiscard" "" { target c++11 } }
VERIFY( gnu_count == 1 );
}
diff --git a/libstdc++-v3/testsuite/25_algorithms/equal/debug/1_neg.cc
b/libstdc++-v3/testsuite/25_algorithms/equal/debug/1_neg.cc
index f9328599a55..38060b1bea4 100644
--- a/libstdc++-v3/testsuite/25_algorithms/equal/debug/1_neg.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/equal/debug/1_neg.cc
@@ -27,7 +27,7 @@ test01()
std::vector<int> vect;
vect.push_back(1);
std::equal(vect.end(), vect.begin(), vect.begin());
- // { dg-warning "ignoring return value" "" { target c++17 } 29 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 29 }
}
int
diff --git a/libstdc++-v3/testsuite/25_algorithms/equal/debug/2_neg.cc
b/libstdc++-v3/testsuite/25_algorithms/equal/debug/2_neg.cc
index 2e9134a74ea..5148571fa21 100644
--- a/libstdc++-v3/testsuite/25_algorithms/equal/debug/2_neg.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/equal/debug/2_neg.cc
@@ -27,7 +27,7 @@ test01()
std::vector<int> v1, v2;
v1.push_back(1);
std::equal(v1.begin(), v1.end(), v2.begin());
- // { dg-warning "ignoring return value" "" { target c++17 } 29 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 29 }
}
int
diff --git a/libstdc++-v3/testsuite/25_algorithms/equal/debug/3_neg.cc
b/libstdc++-v3/testsuite/25_algorithms/equal/debug/3_neg.cc
index 425e7aa78c6..5a176306c2b 100644
--- a/libstdc++-v3/testsuite/25_algorithms/equal/debug/3_neg.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/equal/debug/3_neg.cc
@@ -33,7 +33,7 @@ test01()
l2.push_back(2);
std::equal(++l1.begin(), l1.end(), ++l2.begin());
- // { dg-warning "ignoring return value" "" { target c++17 } 35 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 35 }
}
int
diff --git
a/libstdc++-v3/testsuite/25_algorithms/find_first_of/concept_check_1.cc
b/libstdc++-v3/testsuite/25_algorithms/find_first_of/concept_check_1.cc
index a970cd4bd61..33f3b42b9fb 100644
--- a/libstdc++-v3/testsuite/25_algorithms/find_first_of/concept_check_1.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/find_first_of/concept_check_1.cc
@@ -37,7 +37,7 @@ class2 b;
void test01()
{
std::find_first_of(&a, &a, &b, &b, comp);
- // { dg-warning "ignoring return value" "" { target c++17 } 39 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 39 }
}
int main()
diff --git a/libstdc++-v3/testsuite/25_algorithms/is_permutation/2.cc
b/libstdc++-v3/testsuite/25_algorithms/is_permutation/2.cc
index ab0610c3295..3561c2e6fbf 100644
--- a/libstdc++-v3/testsuite/25_algorithms/is_permutation/2.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/is_permutation/2.cc
@@ -103,7 +103,7 @@ void test02()
int arr[] = { 11, 22, 33 };
using namespace std;
is_permutation(begin(arr0), end(arr0), begin(arr), end(arr), thrower);
- // { dg-warning "ignoring return value" "" { target c++17 } 105 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 105 }
}
int main()
diff --git
a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc
b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc
index 9f666caa68b..9f50714e3c9 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc
@@ -33,5 +33,5 @@ int main()
X x[1];
int i[1];
std::lexicographical_compare(x, x+1, i, i+1);
- // { dg-warning "ignoring return value" "" { target c++17 } 35 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 35 }
}
diff --git a/libstdc++-v3/testsuite/25_algorithms/lower_bound/33613.cc
b/libstdc++-v3/testsuite/25_algorithms/lower_bound/33613.cc
index fa42b82b721..adb04d3f0a1 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lower_bound/33613.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lower_bound/33613.cc
@@ -33,5 +33,5 @@ bool ab(A, B);
void test01(A* a, B b)
{
std::lower_bound(a, a, b, ab);
- // { dg-warning "ignoring return value" "" { target c++17 } 35 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 35 }
}
diff --git
a/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/irreflexive.cc
b/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/irreflexive.cc
index 41a6028e404..d85459a57aa 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/irreflexive.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/irreflexive.cc
@@ -44,5 +44,5 @@ void test01()
{
A as[] = { 0, 1, 2, 3 };
std::lower_bound(as, as + 4, 1, A_int_comparer());
- // { dg-warning "ignoring return value" "" { target c++17 } 46 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 46 }
}
diff --git
a/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/partitioned_neg.cc
b/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/partitioned_neg.cc
index bc01d8147fa..34a6dbc2531 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/partitioned_neg.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/partitioned_neg.cc
@@ -36,7 +36,7 @@ void test01()
{
A as[] = { 0, 1, 2, 0, 2, 3 };
std::lower_bound(as, as + 6, A(1));
- // { dg-warning "ignoring return value" "" { target c++17 } 38 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 38 }
}
int
diff --git
a/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/partitioned_pred_neg.cc
b/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/partitioned_pred_neg.cc
index f860df93940..2e7dec02540 100644
---
a/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/partitioned_pred_neg.cc
+++
b/libstdc++-v3/testsuite/25_algorithms/lower_bound/debug/partitioned_pred_neg.cc
@@ -24,7 +24,7 @@ void test01()
{
int as[] = { 0, 1, 0, 2, 3 };
std::lower_bound(as, as + 5, 1, std::less<int>());
- // { dg-warning "ignoring return value" "" { target c++17 } 26 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 26 }
}
diff --git a/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc
b/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc
index a6620b9fa0d..63607cd4694 100644
--- a/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/minmax/3.cc
@@ -43,7 +43,7 @@ int compare_counter::count = 0;
void test01()
{
std::minmax({1, 2, 3, 4, 5, 6, 7, 8}, compare_counter());
- // { dg-warning "ignoring return value" "" { target c++17 } 45 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 45 }
// If N is the number of arguments in the minmax function call,
// 25.3.7 specifies that at most 3N/2 comparisons are allowed.
diff --git a/libstdc++-v3/testsuite/25_algorithms/search/78346.cc
b/libstdc++-v3/testsuite/25_algorithms/search/78346.cc
index e6f3956b252..18fc946b2f3 100644
--- a/libstdc++-v3/testsuite/25_algorithms/search/78346.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/search/78346.cc
@@ -109,7 +109,7 @@ test01()
{
value s[] = { 0, 1, 2, 3, 4, 5 };
std::search(s, s+6, stashing_iterator(s), stashing_iterator(s+4));
- // { dg-warning "ignoring return value" "" { target c++17 } 111 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 111 }
}
int
diff --git a/libstdc++-v3/testsuite/25_algorithms/search_n/58358.cc
b/libstdc++-v3/testsuite/25_algorithms/search_n/58358.cc
index 651fd86fc9c..b16e8c186a2 100644
--- a/libstdc++-v3/testsuite/25_algorithms/search_n/58358.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/search_n/58358.cc
@@ -29,7 +29,7 @@ void test01()
int count = 0;
std::search_n(a.begin(), a.end(), 10, 1,
[&count](int t, int u) { ++count; return t == u; });
- // { dg-warning "ignoring return value" "" { target c++17 } 30 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 30 }
VERIFY( count <= 11 );
}
diff --git a/libstdc++-v3/testsuite/25_algorithms/unique/1.cc
b/libstdc++-v3/testsuite/25_algorithms/unique/1.cc
index 698c370e229..f5e3c976a63 100644
--- a/libstdc++-v3/testsuite/25_algorithms/unique/1.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/unique/1.cc
@@ -27,6 +27,6 @@ int main()
using namespace std;
list<int> menge;
unique (menge.begin(), menge.end());
- // { dg-warning "ignoring return value" "" { target c++17 } 29 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 29 }
return 0;
}
diff --git a/libstdc++-v3/testsuite/25_algorithms/unique/11480.cc
b/libstdc++-v3/testsuite/25_algorithms/unique/11480.cc
index a008fc57f54..8c11b4c429d 100644
--- a/libstdc++-v3/testsuite/25_algorithms/unique/11480.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/unique/11480.cc
@@ -31,7 +31,7 @@ bool compare(int a, int b)
// libstdc++/11480
void test01()
{
- std::unique(a, a+10, compare); // { dg-warning "ignoring return value" "" {
target c++17 } }
+ std::unique(a, a+10, compare); // { dg-warning "ignoring return value" "" {
target c++11 } }
VERIFY( compare_count == 9 );
}
diff --git a/libstdc++-v3/testsuite/25_algorithms/upper_bound/33613.cc
b/libstdc++-v3/testsuite/25_algorithms/upper_bound/33613.cc
index 19453a38f51..e9eabef5a53 100644
--- a/libstdc++-v3/testsuite/25_algorithms/upper_bound/33613.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/upper_bound/33613.cc
@@ -33,5 +33,5 @@ bool ba(B, A);
void test01(A* a, B b)
{
std::upper_bound(a, a, b, ba);
- // { dg-warning "ignoring return value" "" { target c++17 } 35 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 35 }
}
diff --git
a/libstdc++-v3/testsuite/25_algorithms/upper_bound/debug/partitioned_neg.cc
b/libstdc++-v3/testsuite/25_algorithms/upper_bound/debug/partitioned_neg.cc
index 630357d6a45..a48a8261ef6 100644
--- a/libstdc++-v3/testsuite/25_algorithms/upper_bound/debug/partitioned_neg.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/upper_bound/debug/partitioned_neg.cc
@@ -36,7 +36,7 @@ void test01()
{
A as[] = { 0, 2, 1, 3, 4, 5 };
std::upper_bound(as, as + 6, A(1));
- // { dg-warning "ignoring return value" "" { target c++17 } 38 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 38 }
}
int
diff --git
a/libstdc++-v3/testsuite/25_algorithms/upper_bound/debug/partitioned_pred_neg.cc
b/libstdc++-v3/testsuite/25_algorithms/upper_bound/debug/partitioned_pred_neg.cc
index 5beab7d22d7..3e69a24af02 100644
---
a/libstdc++-v3/testsuite/25_algorithms/upper_bound/debug/partitioned_pred_neg.cc
+++
b/libstdc++-v3/testsuite/25_algorithms/upper_bound/debug/partitioned_pred_neg.cc
@@ -24,7 +24,7 @@ void test01()
{
int as[] = { 0, 2, 1, 3, 4 };
std::upper_bound(as, as + 5, 1, std::less<int>());
- // { dg-warning "ignoring return value" "" { target c++17 } 26 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 26 }
}
diff --git
a/libstdc++-v3/testsuite/27_io/ios_base/types/fmtflags/bitmask_operators.cc
b/libstdc++-v3/testsuite/27_io/ios_base/types/fmtflags/bitmask_operators.cc
index 604d2aa6b5a..3cf8ebe9c46 100644
--- a/libstdc++-v3/testsuite/27_io/ios_base/types/fmtflags/bitmask_operators.cc
+++ b/libstdc++-v3/testsuite/27_io/ios_base/types/fmtflags/bitmask_operators.cc
@@ -27,7 +27,7 @@ int main()
{
__gnu_test::bitmask_operators<std::ios_base::fmtflags>();
}
-// { dg-warning "ignoring return value.*operator\\|" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator&" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator\\^" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator~" "" { target c++17 } 0 }
+// { dg-warning "ignoring return value.*operator\\|" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator&" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator\\^" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator~" "" { target c++11 } 0 }
diff --git
a/libstdc++-v3/testsuite/27_io/ios_base/types/iostate/bitmask_operators.cc
b/libstdc++-v3/testsuite/27_io/ios_base/types/iostate/bitmask_operators.cc
index a98435867ed..d6580bb0e70 100644
--- a/libstdc++-v3/testsuite/27_io/ios_base/types/iostate/bitmask_operators.cc
+++ b/libstdc++-v3/testsuite/27_io/ios_base/types/iostate/bitmask_operators.cc
@@ -27,7 +27,7 @@ int main()
{
__gnu_test::bitmask_operators<std::ios_base::iostate>();
}
-// { dg-warning "ignoring return value.*operator\\|" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator&" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator\\^" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator~" "" { target c++17 } 0 }
+// { dg-warning "ignoring return value.*operator\\|" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator&" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator\\^" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator~" "" { target c++11 } 0 }
diff --git
a/libstdc++-v3/testsuite/27_io/ios_base/types/openmode/bitmask_operators.cc
b/libstdc++-v3/testsuite/27_io/ios_base/types/openmode/bitmask_operators.cc
index 6d024217362..9a94d9b145a 100644
--- a/libstdc++-v3/testsuite/27_io/ios_base/types/openmode/bitmask_operators.cc
+++ b/libstdc++-v3/testsuite/27_io/ios_base/types/openmode/bitmask_operators.cc
@@ -27,7 +27,7 @@ int main()
{
__gnu_test::bitmask_operators<std::ios_base::openmode>();
}
-// { dg-warning "ignoring return value.*operator\\|" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator&" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator\\^" "" { target c++17 } 0 }
-// { dg-warning "ignoring return value.*operator~" "" { target c++17 } 0 }
+// { dg-warning "ignoring return value.*operator\\|" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator&" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator\\^" "" { target c++11 } 0 }
+// { dg-warning "ignoring return value.*operator~" "" { target c++11 } 0 }
diff --git a/libstdc++-v3/testsuite/ext/concept_checks.cc
b/libstdc++-v3/testsuite/ext/concept_checks.cc
index abb43a4fade..016600461bf 100644
--- a/libstdc++-v3/testsuite/ext/concept_checks.cc
+++ b/libstdc++-v3/testsuite/ext/concept_checks.cc
@@ -73,10 +73,10 @@ test2054( )
upper_bound(Index.begin(), Index.end(), SearchTerm, aComparison);
equal_range(Index.begin(), Index.end(), SearchTerm, aComparison);
binary_search(Index.begin(), Index.end(), SearchTerm, aComparison);
- // { dg-warning "ignoring return value" "" { target c++17 } 72 }
- // { dg-warning "ignoring return value" "" { target c++17 } 73 }
- // { dg-warning "ignoring return value" "" { target c++17 } 74 }
- // { dg-warning "ignoring return value" "" { target c++17 } 75 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 72 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 73 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 74 }
+ // { dg-warning "ignoring return value" "" { target c++11 } 75 }
}
int main()
diff --git a/libstdc++-v3/testsuite/ext/is_heap/47709.cc
b/libstdc++-v3/testsuite/ext/is_heap/47709.cc
index 50bbccaf725..64966d60317 100644
--- a/libstdc++-v3/testsuite/ext/is_heap/47709.cc
+++ b/libstdc++-v3/testsuite/ext/is_heap/47709.cc
@@ -24,6 +24,5 @@
void foo()
{
std::vector<int> v;
- is_heap(v.begin(), v.end());
- // { dg-warning "ignoring return value" "" { target c++17 } 27 }
+ is_heap(v.begin(), v.end()); // { dg-warning "ignoring return value" }
}
diff --git a/libstdc++-v3/testsuite/ext/is_sorted/cxx0x.cc
b/libstdc++-v3/testsuite/ext/is_sorted/cxx0x.cc
index 3592d68bfcf..31672481ad8 100644
--- a/libstdc++-v3/testsuite/ext/is_sorted/cxx0x.cc
+++ b/libstdc++-v3/testsuite/ext/is_sorted/cxx0x.cc
@@ -23,6 +23,5 @@
void foo()
{
std::vector<int> v;
- is_sorted(v.begin(), v.end());
- // { dg-warning "ignoring return value" "" { target c++17 } 26 }
+ is_sorted(v.begin(), v.end()); // { dg-warning "ignoring return value" }
}
--
2.47.0
