re PR c++/16370 (__attribute__((deprecated)) not useful on classes, and ugly…

re PR c++/16370 (__attribute__((deprecated)) not useful on classes, and ugly function name listed for deperecation warnings on constructor)

        PR c++/16370
        * decl.c (grokdeclarator): Look through implicit TYPE_DECLs
        for deprecation warnings.

From-SVN: r128691

gcc/cp/ChangeLog

+2007-09-23  Jason Merrill  <jason@redhat.com>
+
+	PR c++/16370
+	* decl.c (grokdeclarator): Look through implicit TYPE_DECLs
+	for deprecation warnings.
+
 2007-09-22  Jason Merrill  <jason@redhat.com>
 
 	PR c++/15269

gcc/cp/decl.c

@@ -7512,6 +7512,10 @@ grokdeclarator (const cp_declarator *declarator,
     {
       typedef_decl = type;
       type = TREE_TYPE (typedef_decl);
+      if (TREE_DEPRECATED (type)
+	  && DECL_ARTIFICIAL (typedef_decl)
+	  && deprecated_state != DEPRECATED_SUPPRESS)
+	warn_deprecated_use (type);
     }
   /* No type at all: default to `int', and set DEFAULTED_INT
      because it was not a user-defined typedef.  */

gcc/testsuite/g++.dg/warn/deprecated-5.C

+// PR c++/16370
+
+struct Foo { int i; } __attribute__ ((deprecated));
+void foo() { Foo f; }		// { dg-warning "deprecated" }

gcc/testsuite/g++.dg/warn/deprecated.C

@@ -98,11 +98,11 @@ class T {
     int x;
 } __attribute__ ((deprecated));
 
-T *p3;
+T *p3;				// { dg-warning "'T' is deprecated" }
 
 inline void T::member1(int) {}
 
-int T::member3(T *p)
+int T::member3(T *p)		// { dg-warning "'T' is deprecated" }
 {
   p->member1(1);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated" "" } */
   (*p).member1(2);			/* { dg-warning "'void T::member1\\(int\\)' is deprecated" "" } */