[libcxx] [test] Replace non-Standard "atomic_flag f(false);" with Standard "atomic_flag f;"

Summary:
Replace non-Standard "atomic_flag f(false);" with Standard "atomic_flag f;" in clear tests.
Although the  value of 'f' is unspecified it shouldn't matter because these tests always call `f.test_and_set()` without checking the result, so the initial state shouldn't matter.

The test init03.pass.cpp is explicitly testing this non-Standard extension; It has been moved into the `test/libcxx` directory.

Reviewers: mclow.lists, STL_MSFT

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19758

llvm-svn: 268355

1 files changed, 2 insertions, 2 deletions

diff --git a/libcxx/test/std/atomics/atomics.flag/atomic_flag_clear.pass.cpp b/libcxx/test/std/atomics/atomics.flag/atomic_flag_clear.pass.cpp
index 3a74e13faf1..64093d639e4 100644
--- a/libcxx/test/std/atomics/atomics.flag/atomic_flag_clear.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.flag/atomic_flag_clear.pass.cpp
@@ -22,13 +22,13 @@
 int main()
 {
     {
-        std::atomic_flag f(false);
+        std::atomic_flag f;
         f.test_and_set();
         atomic_flag_clear(&f);
         assert(f.test_and_set() == 0);
     }
     {
-        volatile std::atomic_flag f(false);
+        volatile std::atomic_flag f;
         f.test_and_set();
         atomic_flag_clear(&f);
         assert(f.test_and_set() == 0);