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authorJason Merrill <jason@redhat.com>2011-08-23 12:03:25 -0400
committerJason Merrill <jason@gcc.gnu.org>2011-08-23 12:03:25 -0400
commit27bec7bf4afb31eac4a79857ffe7aab3d9182e87 (patch)
treeddbea6df18ac58a6503a69ef3d592547e2b3996a /gcc
parent9b8662c2b04820f6024648ff863b83dbbf07844f (diff)
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Core 903 (partial)
Core 903 (partial) * call.c (null_ptr_cst_p): Only 0 qualifies in C++11. From-SVN: r177996
Diffstat (limited to 'gcc')
-rw-r--r--gcc/cp/ChangeLog5
-rw-r--r--gcc/cp/call.c14
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/g++.dg/cpp0x/constexpr-nullptr.C4
4 files changed, 16 insertions, 12 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 0f325a8..bbada45 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,10 @@
2011-08-23 Jason Merrill <jason@redhat.com>
+ Core 903 (partial)
+ * call.c (null_ptr_cst_p): Only 0 qualifies in C++11.
+
+2011-08-23 Jason Merrill <jason@redhat.com>
+
Core 975
* decl.c (cxx_init_decl_processing): Initialize
dependent_lambda_return_type_node.
diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index d2700cb..e5f65b3 100644
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -541,20 +541,14 @@ null_ptr_cst_p (tree t)
return true;
if (CP_INTEGRAL_TYPE_P (TREE_TYPE (t)))
{
- if (cxx_dialect >= cxx0x)
- {
- t = fold_non_dependent_expr (t);
- t = maybe_constant_value (t);
- if (TREE_CONSTANT (t) && integer_zerop (t))
- return true;
- }
- else
+ /* Core issue 903 says only literal 0 is a null pointer constant. */
+ if (cxx_dialect < cxx0x)
{
t = integral_constant_value (t);
STRIP_NOPS (t);
- if (integer_zerop (t) && !TREE_OVERFLOW (t))
- return true;
}
+ if (integer_zerop (t) && !TREE_OVERFLOW (t))
+ return true;
}
return false;
}
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9dfa4d3..a85caca 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,10 @@
2011-08-23 Jason Merrill <jason@redhat.com>
+ Core 903
+ * g++.dg/cpp0x/constexpr-nullptr.C: Now ill-formed.
+
+2011-08-23 Jason Merrill <jason@redhat.com>
+
Core 975
* g++.dg/cpp0x/lambda/lambda-deduce-ext-neg2.C: Now accepted.
* g++.dg/cpp0x/lambda/lambda-deduce-ext-neg.C: Adjust.
diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-nullptr.C b/gcc/testsuite/g++.dg/cpp0x/constexpr-nullptr.C
index 7ac53db..6381323 100644
--- a/gcc/testsuite/g++.dg/cpp0x/constexpr-nullptr.C
+++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-nullptr.C
@@ -2,5 +2,5 @@
constexpr int zero() { return 0; }
-void* ptr1 = zero(); // #1
-constexpr void* ptr2 = zero(); // #2
+void* ptr1 = zero(); // { dg-error "int" }
+constexpr void* ptr2 = zero(); // { dg-error "int" }