Add array_access_test_cx2.cpp

test/Jamfile.v2

@@ -60,6 +60,7 @@ compile array_get_test_cx.cpp ;
 # C++14 constexpr
 
 compile array_assign_test_cx.cpp ;
+compile array_access_test_cx2.cpp ;
 compile array_fill_test_cx.cpp ;
 compile array_eq_test_cx.cpp ;
 compile array_lt_test_cx.cpp ;

test/array_access_test_cx2.cpp

@@ -0,0 +1,45 @@
+// Copyright 2025 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/array.hpp>
+#include <boost/config.hpp>
+#include <boost/config/pragma_message.hpp>
+#include <boost/config/workaround.hpp>
+#include <cstddef>
+
+#if defined(BOOST_NO_CXX14_CONSTEXPR)
+
+BOOST_PRAGMA_MESSAGE("Test skipped because BOOST_NO_CXX14_CONSTEXPR is defined")
+
+#else
+
+#define STATIC_ASSERT(...) static_assert(__VA_ARGS__, #__VA_ARGS__)
+
+template<class T, std::size_t N> constexpr boost::array<T, N> modified( boost::array<T, N> a1 )
+{
+    a1.front() = 1;
+    a1[ 1 ] = 2;
+    a1.at( 2 ) = 3;
+    a1.back() = 4;
+
+    return a1;
+}
+
+template<class T> void test1()
+{
+    constexpr boost::array<T, 4> a1 = {};
+    constexpr boost::array<T, 4> a2 = modified( a1 );
+
+    STATIC_ASSERT( a2[0] == 1 );
+    STATIC_ASSERT( a2[1] == 2 );
+    STATIC_ASSERT( a2[2] == 3 );
+    STATIC_ASSERT( a2[3] == 4 );
+}
+
+int main()
+{
+    test1<int>();
+}
+
+#endif

test/array_assign_test_cx.cpp

@@ -10,7 +10,7 @@
 
 #if defined(BOOST_NO_CXX14_CONSTEXPR)
 
-BOOST_PRAGMA_MESSAGE("Test skipped because BOOST_NO_CXX11_CONSTEXPR is defined")
+BOOST_PRAGMA_MESSAGE("Test skipped because BOOST_NO_CXX14_CONSTEXPR is defined")
 
 #else
 

test/array_fill_test_cx.cpp

@@ -10,7 +10,7 @@
 
 #if defined(BOOST_NO_CXX14_CONSTEXPR)
 
-BOOST_PRAGMA_MESSAGE("Test skipped because BOOST_NO_CXX11_CONSTEXPR is defined")
+BOOST_PRAGMA_MESSAGE("Test skipped because BOOST_NO_CXX14_CONSTEXPR is defined")
 
 #else