rtems6 declares a global struct bitset in a header file included
indirectly by sys/types.h, that ambiguates the unqualified references
to bitset after "using namespace std" in the testsuite.

Work around the namespace pollution with using declarations of
std::bitset.

Regstrapped on x86_64-linux-gnu, also tested with a cross to
aarch64-rtems6.0.  Ok to install?


for  libstdc++-v3/ChangeLog

        * testsuite/23_containers/bitset/cons/dr1325-2.cc: Work around
        global struct bitset.
        * testsuite/23_containers/bitset/ext/15361.cc: Likewise.
        * testsuite/23_containers/bitset/input/1.cc: Likewise.
        * testsuite/23_containers/bitset/to_string/1.cc: Likewise.
        * testsuite/23_containers/bitset/to_string/dr396.cc: Likewise.
---
 .../23_containers/bitset/cons/dr1325-2.cc          |    1 +
 .../testsuite/23_containers/bitset/ext/15361.cc    |    1 +
 .../testsuite/23_containers/bitset/input/1.cc      |    1 +
 .../testsuite/23_containers/bitset/to_string/1.cc  |    1 +
 .../23_containers/bitset/to_string/dr396.cc        |    1 +
 5 files changed, 5 insertions(+)

diff --git a/libstdc++-v3/testsuite/23_containers/bitset/cons/dr1325-2.cc 
b/libstdc++-v3/testsuite/23_containers/bitset/cons/dr1325-2.cc
index 4b79c9f046dbc..2371bef09cca7 100644
--- a/libstdc++-v3/testsuite/23_containers/bitset/cons/dr1325-2.cc
+++ b/libstdc++-v3/testsuite/23_containers/bitset/cons/dr1325-2.cc
@@ -39,6 +39,7 @@ template<std::size_t Nb, typename CharT>
 void test01()
 {
   using namespace std;
+  using std::bitset; // Work around struct ::bitset on rtems.
 
   const char s1[4] = { '0', '1', '0', '1' };
   VERIFY( bitset<4>(s1, 4) == test01_ref<4>(s1, 4) );
diff --git a/libstdc++-v3/testsuite/23_containers/bitset/ext/15361.cc 
b/libstdc++-v3/testsuite/23_containers/bitset/ext/15361.cc
index 40cb94966ab8f..392470084aee5 100644
--- a/libstdc++-v3/testsuite/23_containers/bitset/ext/15361.cc
+++ b/libstdc++-v3/testsuite/23_containers/bitset/ext/15361.cc
@@ -22,6 +22,7 @@
 void test01()
 {
   using namespace std;
+  using std::bitset; // Work around struct ::bitset on rtems.
 
   bitset<256> b;
   b.set(225);
diff --git a/libstdc++-v3/testsuite/23_containers/bitset/input/1.cc 
b/libstdc++-v3/testsuite/23_containers/bitset/input/1.cc
index 8738c77238377..939861b171eaa 100644
--- a/libstdc++-v3/testsuite/23_containers/bitset/input/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/bitset/input/1.cc
@@ -26,6 +26,7 @@
 void test01()
 {
   using namespace std;
+  using std::bitset; // Work around struct ::bitset on rtems.
 
   bitset<5>      b5;
   bitset<0>      b0;
diff --git a/libstdc++-v3/testsuite/23_containers/bitset/to_string/1.cc 
b/libstdc++-v3/testsuite/23_containers/bitset/to_string/1.cc
index f4af91373cc37..8384eb96d2547 100644
--- a/libstdc++-v3/testsuite/23_containers/bitset/to_string/1.cc
+++ b/libstdc++-v3/testsuite/23_containers/bitset/to_string/1.cc
@@ -25,6 +25,7 @@
 void test01()
 {
   using namespace std;
+  using std::bitset; // Work around struct ::bitset on rtems.
 
   bitset<5> b5;
   string s0 = b5.to_string<char, char_traits<char>, allocator<char> >();
diff --git a/libstdc++-v3/testsuite/23_containers/bitset/to_string/dr396.cc 
b/libstdc++-v3/testsuite/23_containers/bitset/to_string/dr396.cc
index 8faded348479a..dfba27ed3afa1 100644
--- a/libstdc++-v3/testsuite/23_containers/bitset/to_string/dr396.cc
+++ b/libstdc++-v3/testsuite/23_containers/bitset/to_string/dr396.cc
@@ -26,6 +26,7 @@
 void test01()
 {
   using namespace std;
+  using std::bitset; // Work around struct ::bitset on rtems.
 
   bitset<5> b5;
   string s0 = b5.to_string<char, char_traits<char>, allocator<char> >('a', 
'b');


-- 
Alexandre Oliva, happy hacker                https://FSFLA.org/blogs/lxo/
   Free Software Activist                       GNU Toolchain Engineer
Disinformation flourishes because many people care deeply about injustice
but very few check the facts.  Ask me about <https://stallmansupport.org>

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