[libc++] Move __libcpp_timespec_t into namespace std

[ldionne]

It was previously defined outside of namespace std for apparently no good reason.

[llvmbot]

@llvm/pr-subscribers-libcxx

Author: Louis Dionne (ldionne)

Changes

It was previously defined outside of namespace std for apparently no good reason.

---

Full diff: https://github.com/llvm/llvm-project/pull/80004.diff

4 Files Affected:

• (modified) libcxx/include/__thread/support.h (+4)
• (modified) libcxx/include/__thread/support/c11.h (+2-2)
• (modified) libcxx/include/__thread/support/pthread.h (+2-2)
• (modified) libcxx/include/__thread/support/windows.h (+2-2)

diff --git a/libcxx/include/__thread/support.h b/libcxx/include/__thread/support.h
index 33f343a876da..92f1c4415e4d 100644
--- a/libcxx/include/__thread/support.h
+++ b/libcxx/include/__thread/support.h
@@ -23,6 +23,8 @@
 // The following functionality must be provided by any implementation:
 //
 
+_LIBCPP_BEGIN_NAMESPACE_STD
+
 using __libcpp_timespec_t = ...;
 
 //
@@ -98,6 +100,8 @@ int __libcpp_tls_create(__libcpp_tls_key*, void (*__at_exit)(void*));
 void* __libcpp_tls_get(__libcpp_tls_key);
 int __libcpp_tls_set(__libcpp_tls_key, void*);
 
+_LIBCPP_END_NAMESPACE_STD
+
 */
 
 #if !defined(_LIBCPP_HAS_NO_THREADS)
diff --git a/libcxx/include/__thread/support/c11.h b/libcxx/include/__thread/support/c11.h
index 44515454d695..896264891cc4 100644
--- a/libcxx/include/__thread/support/c11.h
+++ b/libcxx/include/__thread/support/c11.h
@@ -20,10 +20,10 @@
 #  pragma GCC system_header
 #endif
 
-typedef ::timespec __libcpp_timespec_t;
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
+using __libcpp_timespec_t = ::timespec;
+
 //
 // Mutex
 //
diff --git a/libcxx/include/__thread/support/pthread.h b/libcxx/include/__thread/support/pthread.h
index 6ea2a38f6b6b..d0b8367e448f 100644
--- a/libcxx/include/__thread/support/pthread.h
+++ b/libcxx/include/__thread/support/pthread.h
@@ -36,10 +36,10 @@
 #  pragma GCC system_header
 #endif
 
-typedef ::timespec __libcpp_timespec_t;
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
+using __libcpp_timespec_t = ::timespec;
+
 //
 // Mutex
 //
diff --git a/libcxx/include/__thread/support/windows.h b/libcxx/include/__thread/support/windows.h
index 16d1f3ba5a3c..5dc4fa14f45b 100644
--- a/libcxx/include/__thread/support/windows.h
+++ b/libcxx/include/__thread/support/windows.h
@@ -18,10 +18,10 @@
 #  pragma GCC system_header
 #endif
 
-typedef ::timespec __libcpp_timespec_t;
-
 _LIBCPP_BEGIN_NAMESPACE_STD
 
+using __libcpp_timespec_t = ::timespec;
+
 //
 // Mutex
 //