* typeck2.c (digest_init): Make copies where appropriate.

	* decl2.c (delete_sanity): resolve_offset_ref.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@16727 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index a129f0a..dbe470e 100644 (file)
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,9 @@
 Wed Nov 26 01:11:24 1997  Jason Merrill  <jason@yorick.cygnus.com>
 
+       * typeck2.c (digest_init): Make copies where appropriate.
+
+       * decl2.c (delete_sanity): resolve_offset_ref.
+
        * except.c (expand_start_catch_block): Fix catching a reference
        to pointer.
 

diff --git a/gcc/cp/NEWS b/gcc/cp/NEWS
index ff2d512..7548830 100644 (file)
--- a/gcc/cp/NEWS
+++ b/gcc/cp/NEWS
@@ -1,7 +1,7 @@
 *** Changes since G++ version 2.7.2:
 
-* A public review copy of the December 1996 Draft of the ANSI/ISO C++
-  proto-standard is now available. See
+* A public review copy of the December 1996 Draft of the ISO/ANSI C++
+  standard is now available. See
 
        http://www.cygnus.com/misc/wp/
 
@@ -65,8 +65,17 @@
      + Template friends.
 
 * Exception handling support has been significantly improved and is on by
-  default.  This can result in significant runtime overhead.  You can turn
-  it off with -fno-exceptions.
+  default.  The compiler supports two mechanisms for walking back up the
+  call stack; one relies on static information about how registers are
+  saved, and causes no runtime overhead for code that does not throw
+  exceptions.  The other mechanism uses setjmp and longjmp equivalents, and
+  can result in quite a bit of runtime overhead.  You can determine which
+  mechanism is the default for your target by compiling a testcase that
+  uses exceptions and doing an 'nm' on the object file; if it uses __throw,
+  it's using the first mechanism.  If it uses __sjthrow, it's using the
+  second.
+
+  You can turn EH support off with -fno-exceptions.
 
 * RTTI support has been rewritten to work properly and is now on by default.
   This means code that uses virtual functions will have a modest space
@@ -90,9 +99,9 @@
 
 * New flags:
 
-     + New flags -Wsign-promo (warn about potentially confusing promotions
-       in overload resolution), -Wno-pmf-conversion (don't warn about
-       converting from a bound member function pointer to function pointer).
+     + New warning -Wno-pmf-conversion (don't warn about
+       converting from a bound member function pointer to function
+       pointer).
 
      + A flag -Weffc++ has been added for violations of some of the style 
        guidelines in Scott Meyers' _Effective C++_ books.
@@ -145,7 +154,7 @@
 * The name of a class is now implicitly declared in its own scope; A::A
   refers to A.
 
-* Local classes are now supported.
+* Local classes are now supported, though not inside templates.
 
 * __attribute__ can now be attached to types as well as declarations.
 

diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c
index 3821cf3..7f207d6 100644 (file)
--- a/gcc/cp/decl2.c
+++ b/gcc/cp/decl2.c
@@ -1242,7 +1242,10 @@ delete_sanity (exp, size, doing_vec, use_global_delete)
       return t;
     }
 
-  t = stabilize_reference (convert_from_reference (exp));
+  t = exp;
+  if (TREE_CODE (t) == OFFSET_REF)
+    t = resolve_offset_ref (t);
+  t = stabilize_reference (convert_from_reference (t));
   type = TREE_TYPE (t);
   code = TREE_CODE (type);
 
@@ -1270,15 +1273,14 @@ delete_sanity (exp, size, doing_vec, use_global_delete)
   if (code == POINTER_TYPE)
     {
 #if 0
-      /* As of Valley Forge, you can delete a pointer to constant.  */
-      /* You can't delete a pointer to constant.  */
+      /* As of Valley Forge, you can delete a pointer to const.  */
       if (TREE_READONLY (TREE_TYPE (type)))
        {
          error ("`const *' cannot be deleted");
          return error_mark_node;
        }
 #endif
-      /* You also can't delete functions.  */
+      /* You can't delete functions.  */
       if (TREE_CODE (TREE_TYPE (type)) == FUNCTION_TYPE)
        {
          error ("cannot delete a function");

diff --git a/gcc/cp/typeck2.c b/gcc/cp/typeck2.c
index d876e76..24e3c5c 100644 (file)
--- a/gcc/cp/typeck2.c
+++ b/gcc/cp/typeck2.c
@@ -743,6 +743,9 @@ digest_init (type, init, tail)
        init = DECL_INITIAL (init);
       else if (TREE_READONLY_DECL_P (init))
        init = decl_constant_value (init);
+      else if (IS_AGGR_TYPE (type) && TYPE_NEEDS_CONSTRUCTING (type))
+       init = ocp_convert (type, init, CONV_IMPLICIT|CONV_FORCE_TEMP,
+                           LOOKUP_NORMAL);
       return init;
     }