diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0324-PR-c-49105.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0324-PR-c-49105.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0324-PR-c-49105.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0324-PR-c-49105.patch deleted file mode 100644 index 895fc54ae..000000000 --- a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0324-PR-c-49105.patch +++ /dev/null @@ -1,75 +0,0 @@ -From 64c58ffe439f284f8ff22900f2bbd4923e92d835 Mon Sep 17 00:00:00 2001 -From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4> -Date: Wed, 25 May 2011 01:08:38 +0000 -Subject: [PATCH] PR c++/49105 - * typeck.c (build_const_cast_1): Handle rvalue references. - -git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174162 138bc75d-0d04-0410-961f-82ee72b054a4 - -index 9a81ea5..578eb83 100644 ---- a/gcc/cp/typeck.c -+++ b/gcc/cp/typeck.c -@@ -6220,14 +6220,29 @@ build_const_cast_1 (tree dst_type, tree expr, bool complain, - - /* [expr.const.cast] - -- An lvalue of type T1 can be explicitly converted to an lvalue of -- type T2 using the cast const_cast<T2&> (where T1 and T2 are object -- types) if a pointer to T1 can be explicitly converted to the type -- pointer to T2 using a const_cast. */ -+ For two object types T1 and T2, if a pointer to T1 can be explicitly -+ converted to the type "pointer to T2" using a const_cast, then the -+ following conversions can also be made: -+ -+ -- an lvalue of type T1 can be explicitly converted to an lvalue of -+ type T2 using the cast const_cast<T2&>; -+ -+ -- a glvalue of type T1 can be explicitly converted to an xvalue of -+ type T2 using the cast const_cast<T2&&>; and -+ -+ -- if T1 is a class type, a prvalue of type T1 can be explicitly -+ converted to an xvalue of type T2 using the cast const_cast<T2&&>. */ -+ - if (TREE_CODE (dst_type) == REFERENCE_TYPE) - { - reference_type = dst_type; -- if (! real_lvalue_p (expr)) -+ if (!TYPE_REF_IS_RVALUE (dst_type) -+ ? real_lvalue_p (expr) -+ : (CLASS_TYPE_P (TREE_TYPE (dst_type)) -+ ? lvalue_p (expr) -+ : lvalue_or_rvalue_with_address_p (expr))) -+ /* OK. */; -+ else - { - if (complain) - error ("invalid const_cast of an rvalue of type %qT to type %qT", -new file mode 100644 -index 0000000..94ee4ca ---- /dev/null -+++ b/gcc/testsuite/g++.dg/cpp0x/rv-cast2.C -@@ -0,0 +1,21 @@ -+// Test for const_cast to reference (5.2.11/4). -+// { dg-options -std=c++0x } -+ -+template <class T> T&& xval(); -+template <class T> T& lval(); -+template <class T> T prval(); -+ -+struct A { }; -+ -+int main() -+{ -+ const_cast<int&>(lval<int>()); -+ const_cast<int&>(xval<int>()); // { dg-error "" } -+ const_cast<int&>(prval<int>()); // { dg-error "" } -+ const_cast<int&&>(lval<int>()); -+ const_cast<int&&>(xval<int>()); -+ const_cast<int&&>(prval<int>()); // { dg-error "" } -+ const_cast<A&&>(lval<A>()); -+ const_cast<A&&>(xval<A>()); -+ const_cast<A&&>(prval<A>()); -+} --- -1.7.0.4 - |