From dead89d27645c391b62da24a2f2942fb8a819d45 Mon Sep 17 00:00:00 2001
From: Tom Tromey <tom@tromey.com>
Date: Sun, 15 Oct 2023 11:20:57 -0600
Subject: [PATCH] Enable some C++14 code in array-view.h

This changes gdbsupport/array-view.h to enable some code that is
C++14-specific.

Approved-By: Pedro Alves <pedro@palves.net>
---
 gdbsupport/array-view.h | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/gdbsupport/array-view.h b/gdbsupport/array-view.h
index 4b519112e78..0417f9e80a0 100644
--- a/gdbsupport/array-view.h
+++ b/gdbsupport/array-view.h
@@ -153,18 +153,17 @@ public:
     : m_array (c.data ()), m_size (c.size ())
   {}
 
-  /* Observer methods.  Some of these can't be constexpr until we
-     require C++14.  */
-  /*constexpr14*/ T *data () noexcept { return m_array; }
+  /* Observer methods.  */
+  constexpr T *data () noexcept { return m_array; }
   constexpr const T *data () const noexcept { return m_array; }
 
-  /*constexpr14*/ T *begin () noexcept { return m_array; }
+  constexpr T *begin () noexcept { return m_array; }
   constexpr const T *begin () const noexcept { return m_array; }
 
-  /*constexpr14*/ T *end () noexcept { return m_array + m_size; }
+  constexpr T *end () noexcept { return m_array + m_size; }
   constexpr const T *end () const noexcept { return m_array + m_size; }
 
-  /*constexpr14*/ reference operator[] (size_t index) noexcept
+  constexpr reference operator[] (size_t index) noexcept
   {
 #if defined(_GLIBCXX_DEBUG)
     gdb_assert (index < m_size);
@@ -173,7 +172,7 @@ public:
   }
   constexpr const_reference operator[] (size_t index) const noexcept
   {
-#if defined(_GLIBCXX_DEBUG) && __cplusplus >= 201402L
+#if defined(_GLIBCXX_DEBUG)
     gdb_assert (index < m_size);
 #endif
     return m_array[index];
@@ -188,7 +187,7 @@ public:
   [[nodiscard]]
   constexpr array_view<T> slice (size_type start, size_type size) const noexcept
   {
-#if defined(_GLIBCXX_DEBUG) && __cplusplus >= 201402L
+#if defined(_GLIBCXX_DEBUG)
     gdb_assert (start + size <= m_size);
 #endif
     return {m_array + start, size};
@@ -199,7 +198,7 @@ public:
   [[nodiscard]]
   constexpr array_view<T> slice (size_type start) const noexcept
   {
-#if defined(_GLIBCXX_DEBUG) && __cplusplus >= 201402L
+#if defined(_GLIBCXX_DEBUG)
     gdb_assert (start <= m_size);
 #endif
     return {m_array + start, size () - start};