From: Jonathan Wakely <jwakely@redhat.com>
Date: Wed, 20 Jul 2016 18:21:59 +0000 (+0100)
Subject: LWG 2441 Provide exact-width atomic typedefs
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e87b7d52c364b6ddb173ba74deb47c89b2968461;p=gcc.git

LWG 2441 Provide exact-width atomic typedefs

	* include/std/atomic (atomic_int8_t, atomic_uint8_t, atomic_int16_t)
	(atomic_uint16_t, atomic_int32_t, atomic_uint32_t, atomic_int64_t)
	(atomic_uint64_t): Define (LWG 2441).
	* testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc: Remove empty
	lines.
	* testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Test for
	the new types.
	* doc/xml/manual/intro.xml: Document DR 2441 status.

From-SVN: r238534
---

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index ad31fe6fdee..c53240be4d7 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,14 @@
 2016-07-20  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/std/atomic (atomic_int8_t, atomic_uint8_t, atomic_int16_t)
+	(atomic_uint16_t, atomic_int32_t, atomic_uint32_t, atomic_int64_t)
+	(atomic_uint64_t): Define (LWG 2441).
+	* testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc: Remove empty
+	lines.
+	* testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Test for
+	the new types.
+	* doc/xml/manual/intro.xml: Document DR 2441 status.
+
 	* include/std/istream (operator>>(basic_istream&&, _Tp&)): Adjust
 	to use perfect forwarding (LWG 2328).
 	* testsuite/27_io/rvalue_streams.cc: Test perfect forwarding.
diff --git a/libstdc++-v3/doc/xml/manual/intro.xml b/libstdc++-v3/doc/xml/manual/intro.xml
index 6335614efdb..c6b06561999 100644
--- a/libstdc++-v3/doc/xml/manual/intro.xml
+++ b/libstdc++-v3/doc/xml/manual/intro.xml
@@ -1011,6 +1011,12 @@ requirements of the license of GCC.
     <listitem><para>Add <code>noexcept</code>.
     </para></listitem></varlistentry>
 
+    <varlistentry><term><link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="../ext/lwg-defects.html#2441">2441</link>:
+       <emphasis>Exact-width atomic typedefs should be provided</emphasis>
+    </term>
+    <listitem><para>Define the typedefs.
+    </para></listitem></varlistentry>
+
     <varlistentry><term><link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="../ext/lwg-defects.html#2454">2454</link>:
        <emphasis>Add <code>raw_storage_iterator::base()</code> member
        </emphasis>
diff --git a/libstdc++-v3/include/std/atomic b/libstdc++-v3/include/std/atomic
index 8cbc91f9347..f8894bf7486 100644
--- a/libstdc++-v3/include/std/atomic
+++ b/libstdc++-v3/include/std/atomic
@@ -833,6 +833,34 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   typedef atomic<char32_t>		atomic_char32_t;
 
 
+  // _GLIBCXX_RESOLVE_LIB_DEFECTS
+  // 2441. Exact-width atomic typedefs should be provided
+
+  /// atomic_int8_t
+  typedef atomic<int8_t>		atomic_int8_t;
+
+  /// atomic_uint8_t
+  typedef atomic<uint8_t>		atomic_uint8_t;
+
+  /// atomic_int16_t
+  typedef atomic<int16_t>		atomic_int16_t;
+
+  /// atomic_uint16_t
+  typedef atomic<uint16_t>		atomic_uint16_t;
+
+  /// atomic_int32_t
+  typedef atomic<int32_t>		atomic_int32_t;
+
+  /// atomic_uint32_t
+  typedef atomic<uint32_t>		atomic_uint32_t;
+
+  /// atomic_int64_t
+  typedef atomic<int64_t>		atomic_int64_t;
+
+  /// atomic_uint64_t
+  typedef atomic<uint64_t>		atomic_uint64_t;
+
+
   /// atomic_int_least8_t
   typedef atomic<int_least8_t>		atomic_int_least8_t;
 
diff --git a/libstdc++-v3/testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc b/libstdc++-v3/testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc
index a13f66ab1e5..1f56f5a5815 100644
--- a/libstdc++-v3/testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc
+++ b/libstdc++-v3/testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc
@@ -21,6 +21,3 @@
 #include <atomic>
 
 // { dg-error "ISO C.. 2011" "" { target *-*-* } 32 }
-
-
-
diff --git a/libstdc++-v3/testsuite/29_atomics/headers/atomic/types_std_c++0x.cc b/libstdc++-v3/testsuite/29_atomics/headers/atomic/types_std_c++0x.cc
index 32fe2a4eb1d..51adbf57835 100644
--- a/libstdc++-v3/testsuite/29_atomics/headers/atomic/types_std_c++0x.cc
+++ b/libstdc++-v3/testsuite/29_atomics/headers/atomic/types_std_c++0x.cc
@@ -72,4 +72,14 @@ void test01()
   using std::atomic_ptrdiff_t;
   using std::atomic_intmax_t;
   using std::atomic_uintmax_t;
+
+  // DR 2441
+  using std::atomic_int8_t;
+  using std::atomic_uint8_t;
+  using std::atomic_int16_t;
+  using std::atomic_uint16_t;
+  using std::atomic_int32_t;
+  using std::atomic_uint32_t;
+  using std::atomic_int64_t;
+  using std::atomic_uint64_t;
 }