Improve docs for Networking TS

	* include/experimental/bits/net.h: Fix/improve doxygen markup.
	* include/experimental/buffer: Likewise.
	* include/experimental/executor: Likewise.
	* include/experimental/internet: Likewise.
	* include/experimental/io_context: Likewise.
	* include/experimental/net: Likewise.
	* include/experimental/netfwd: Likewise.
	* include/experimental/socket: Likewise.
	* include/experimental/timer: Likewise.

From-SVN: r270810

libstdc++-v3/ChangeLog

 2019-05-02  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/experimental/bits/net.h: Fix/improve doxygen markup.
+	* include/experimental/buffer: Likewise.
+	* include/experimental/executor: Likewise.
+	* include/experimental/internet: Likewise.
+	* include/experimental/io_context: Likewise.
+	* include/experimental/net: Likewise.
+	* include/experimental/netfwd: Likewise.
+	* include/experimental/socket: Likewise.
+	* include/experimental/timer: Likewise.
+
 	* doc/doxygen/doxygroups.cc: Move description of experimental group
 	here.
 	* include/experimental/algorithm: Add to libfund-ts doc group.

libstdc++-v3/include/experimental/bits/net.h

@@ -48,9 +48,8 @@ namespace net
 inline namespace v1
 {
 
-  /**
-   * @ingroup networking
-   * @{
+  /** @addtogroup networking-ts
+   *  @{
    */
 
   template<typename _CompletionToken, typename _Signature, typename>

libstdc++-v3/include/experimental/buffer

@@ -24,6 +24,7 @@
 
 /** @file experimental/buffer
  *  This is a TS C++ Library header.
+ *  @ingroup networking-ts
  */
 
 #ifndef _GLIBCXX_EXPERIMENTAL_BUFFER
@@ -51,9 +52,8 @@ namespace net
 inline namespace v1
 {
 
-  /**
-   * @ingroup networking
-   * @{
+  /** @addtogroup networking-ts
+   *  @{
    */
 
   enum class stream_errc {    // TODO decide values

libstdc++-v3/include/experimental/executor

@@ -24,6 +24,7 @@
 
 /** @file experimental/executor
  *  This is a TS C++ Library header.
+ *  @ingroup networking-ts
  */
 
 #ifndef _GLIBCXX_EXPERIMENTAL_EXECUTOR
@@ -57,9 +58,8 @@ namespace net
 inline namespace v1
 {
 
-  /**
-   * @ingroup networking
-   * @{
+  /** @addtogroup networking-ts
+   *  @{
    */
 
   /// Customization point for asynchronous operations.

libstdc++-v3/include/experimental/internet

@@ -24,6 +24,7 @@
 
 /** @file experimental/internet
  *  This is a TS C++ Library header.
+ *  @ingroup networking-ts
  */
 
 #ifndef _GLIBCXX_EXPERIMENTAL_INTERNET
@@ -69,9 +70,8 @@ inline namespace v1
 namespace ip
 {
 
-  /**
-   * @ingroup networking
-   * @{
+  /** @addtogroup networking-ts
+   *  @{
    */
 
 #ifdef _GLIBCXX_HAVE_NETDB_H
@@ -1111,13 +1111,14 @@ namespace ip
 
   typedef basic_address_range<address_v6> address_v6_range;
 
+  // @}
+
   bool
   operator==(const network_v4& __a, const network_v4& __b) noexcept;
 
   bool
   operator==(const network_v6& __a, const network_v6& __b) noexcept;
 
-  // @}
 
   /// An IPv4 network address.
   class network_v4

libstdc++-v3/include/experimental/io_context

@@ -22,8 +22,9 @@
 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 // <http://www.gnu.org/licenses/>.
 
-/** @file experimental/io_service
+/** @file experimental/io_context
  *  This is a TS C++ Library header.
+ *  @ingroup networking-ts
  */
 
 #ifndef _GLIBCXX_EXPERIMENTAL_IO_SERVICE
@@ -61,9 +62,8 @@ namespace net
 inline namespace v1
 {
 
-  /**
-   * @ingroup networking
-   * @{
+  /** @addtogroup networking-ts
+   *  @{
    */
 
   class __socket_impl;

libstdc++-v3/include/experimental/net

@@ -24,6 +24,7 @@
 
 /** @file experimental/net
  *  This is a TS C++ Library header.
+ *  @ingroup networking-ts
  */
 
 #ifndef _GLIBCXX_EXPERIMENTAL_NET

libstdc++-v3/include/experimental/netfwd

@@ -24,6 +24,7 @@
 
 /** @file experimental/netfwd
  *  This is a TS C++ Library header.
+ *  @ingroup networking-ts
  */
 
 #ifndef _GLIBCXX_EXPERIMENTAL_NETFWD
@@ -48,8 +49,10 @@ namespace net
 inline namespace v1
 {
 
-  /**
-   * @ingroup networking
+  /** @defgroup networking-ts Networking TS
+   *  @ingroup experimental
+   *
+   * ISO/IEC TS 19216:2018	C++ Extensions for Networking
    * @{
    */
 
@@ -93,7 +96,7 @@ inline namespace v1
 namespace ip
 {
   /**
-   * @ingroup networking
+   * @ingroup networking-ts
    * @{
    */
     class address;

libstdc++-v3/include/experimental/socket

@@ -24,6 +24,7 @@
 
 /** @file experimental/socket
  *  This is a TS C++ Library header.
+ *  @ingroup networking-ts
  */
 
 #ifndef _GLIBCXX_EXPERIMENTAL_SOCKET
@@ -69,9 +70,8 @@ namespace net
 inline namespace v1
 {
 
-  /**
-   * @ingroup networking
-   * @{
+  /** @addtogroup networking-ts
+   *  @{
    */
 
   enum class socket_errc {  // TODO decide values

libstdc++-v3/include/experimental/timer

@@ -24,6 +24,7 @@
 
 /** @file experimental/timer
  *  This is a TS C++ Library header.
+ *  @ingroup networking-ts
  */
 
 #ifndef _GLIBCXX_EXPERIMENTAL_TIMER
@@ -50,9 +51,8 @@ namespace net
 inline namespace v1
 {
 
-  /**
-   * @ingroup networking
-   * @{
+  /** @addtogroup networking-ts
+   *  @{
    */
 
   template<typename _Clock>