gdbsupport: Remove gdb::string_view

Now that all places using gdb::string_view have been updated to use
std::string_view, this patch drops the gdb::string_view implementation
and the tests which came with it.

As this drops the unittests/string_view-selftests.c, this also
implicitly solves PR build/23676, as pointed-out by Tom Tromey.

Change-Id: Idf5479b09e0ac536917b3f0e13aca48424b90df0
Approved-By: Tom Tromey <tom@tromey.com>
Approved-By: Pedro Alves <pedro@palves.net>
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=23676

1 files changed, 0 insertions, 71 deletions

diff --git a/gdb/unittests/basic_string_view/element_access/wchar_t/1.cc b/gdb/unittests/basic_string_view/element_access/wchar_t/1.cc
deleted file mode 100644
index 679772b..0000000
--- a/gdb/unittests/basic_string_view/element_access/wchar_t/1.cc
+++ /dev/null
@@ -1,71 +0,0 @@
-// { dg-options "-std=gnu++17" }
-
-// Copyright (C) 2013-2023 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library.  This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING3.  If not see
-// <http://www.gnu.org/licenses/>.
-
-// basic_string_view element access
-
-#include <string_view>
-#include <stdexcept>
-#include <testsuite_hooks.h>
-
-void
-test01()
-{
-  typedef std::wstring_view::size_type csize_type;
-  typedef std::wstring_view::const_reference cref;
-  typedef std::wstring_view::reference ref;
-  csize_type csz01, csz02;
-
-  const std::wstring_view str01(L"tamarindo, costa rica");
-  std::wstring_view str02(L"41st street beach, capitola, california");
-  std::wstring_view str03;
-
-  // const_reference operator[] (size_type pos) const;
-  csz01 = str01.size();
-  cref cref1 = str01[csz01 - 1];
-  VERIFY( cref1 == L'a' );
-  // Undefined behavior at size().
-  //cref cref2 = str01[csz01];
-  //VERIFY( cref2 == wchar_t() );
-
-  // const_reference at(size_type pos) const;
-  csz01 = str01.size();
-  cref cref3 = str01.at(csz01 - 1);
-  VERIFY( cref3 == L'a' );
-  try
-  {
-    str01.at(csz01);
-    VERIFY( false ); // Should not get here, as exception thrown.
-  }
-  catch (std::out_of_range& fail)
-  {
-    VERIFY( true );
-  }
-  catch (...)
-  {
-    VERIFY( false );
-  }
-}
-
-int
-main()
-{ 
-  test01();
-
-  return 0;
-}