Warning patches:

        * Makefile.in (lex.o): Depend on output.h.
        * call.c (add_function_candidate): Remove unused variable `cand'.
        (add_conv_candidate): Likewise.
        (build_builtin_candidate): Likewise.
        * cp-tree.h: Add prototype for `types_overlap_p'.
        * decl.c (signal_catch): Mark parameter `sig' with ATTRIBUTE_UNUSED.
        * decl2.c (merge_functions): Remove unused variables `tmp' and
        `tempn'.
        * error.c (expr_as_string): Mark parameter `v' with ATTRIBUTE_UNUSED.
        (code_as_string): Likewise.
        (language_as_string): Likewise.
        (parm_as_string): Likewise.
        (op_as_string): Likewise.
        (assop_as_string): Likewise.
        (cv_as_string): Likewise.
        * lex.c: Include output.h.
        * pt.c (type_unification): Cast first argument of `bzero' to a char*.
        * search.c (dfs_no_overlap_yet): Mark parameter `t' with
        ATTRIBUTE_UNUSED.
        * tinfo.cc (__class_type_info::dcast): Change the type of variable
        `i' from int to size_t.
        * typeck.c (language_lvalue_valid): Mark parameter `exp' with
        ATTRIBUTE_UNUSED.

From-SVN: r19707

12 files changed, 53 insertions, 17 deletions

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index a2742a5..8cfb061 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,39 @@
+Wed May 13 12:54:30 1998  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* Makefile.in (lex.o): Depend on output.h.
+	
+	* call.c (add_function_candidate): Remove unused variable `cand'.
+	(add_conv_candidate): Likewise.
+	(build_builtin_candidate): Likewise.
+	
+	* cp-tree.h: Add prototype for `types_overlap_p'.
+
+	* decl.c (signal_catch): Mark parameter `sig' with ATTRIBUTE_UNUSED.
+
+	* decl2.c (merge_functions): Remove unused variables `tmp' and
+	`tempn'.
+
+	* error.c (expr_as_string): Mark parameter `v' with ATTRIBUTE_UNUSED.
+	(code_as_string): Likewise.
+	(language_as_string): Likewise.
+	(parm_as_string): Likewise.
+	(op_as_string): Likewise.
+	(assop_as_string): Likewise.
+	(cv_as_string): Likewise.
+
+	* lex.c: Include output.h.
+
+	* pt.c (type_unification): Cast first argument of `bzero' to a char*.
+
+	* search.c (dfs_no_overlap_yet): Mark parameter `t' with
+	ATTRIBUTE_UNUSED.
+
+	* tinfo.cc (__class_type_info::dcast): Change the type of variable
+	`i' from int to size_t.
+
+	* typeck.c (language_lvalue_valid): Mark parameter `exp' with
+	ATTRIBUTE_UNUSED.
+
 Tue May 12 21:37:49 1998  Jason Merrill  <jason@yorick.cygnus.com>
 
 	* error.c (dump_simple_decl): Use DECL_CLASS_SCOPE_P and/or
diff --git a/gcc/cp/Makefile.in b/gcc/cp/Makefile.in
index c917e60..869023d 100644
--- a/gcc/cp/Makefile.in
+++ b/gcc/cp/Makefile.in
@@ -234,7 +234,8 @@ spew.o : spew.c $(CONFIG_H) $(CXX_TREE_H) \
   $(PARSE_H) $(srcdir)/../flags.h lex.h $(srcdir)/../system.h
 lex.o : lex.c $(CONFIG_H) $(CXX_TREE_H) \
   $(PARSE_H) input.c $(srcdir)/../flags.h hash.h lex.h \
-  $(srcdir)/../c-pragma.h $(srcdir)/../system.h $(srcdir)/../toplev.h
+  $(srcdir)/../c-pragma.h $(srcdir)/../system.h $(srcdir)/../toplev.h \
+  $(srcdir)/../output.h
 decl.o : decl.c $(CONFIG_H) $(CXX_TREE_H) $(srcdir)/../flags.h \
   lex.h decl.h $(srcdir)/../stack.h $(srcdir)/../output.h  \
   $(srcdir)/../except.h $(srcdir)/../system.h $(srcdir)/../toplev.h
diff --git a/gcc/cp/call.c b/gcc/cp/call.c
index fa02408..a5c16e9 100644
--- a/gcc/cp/call.c
+++ b/gcc/cp/call.c
@@ -1095,7 +1095,6 @@ add_function_candidate (candidates, fn, arglist, flags)
   tree parmnode = parmlist;
   tree argnode = arglist;
   int viable = 1;
-  struct z_candidate *cand;
 
   /* The `this' and `in_chrg' arguments to constructors are not considered
      in overload resolution.  */
@@ -1183,7 +1182,6 @@ add_conv_candidate (candidates, fn, obj, arglist)
   tree parmnode = parmlist;
   tree argnode = arglist;
   int viable = 1;
-  struct z_candidate *cand;
   int flags = LOOKUP_NORMAL;
 
   for (i = 0; i < len; ++i)
@@ -1243,7 +1241,6 @@ build_builtin_candidate (candidates, fnname, type1, type2,
 {
   tree t, convs;
   int viable = 1, i;
-  struct z_candidate *cand;
   tree types[2];
 
   types[0] = type1;
diff --git a/gcc/cp/cp-tree.h b/gcc/cp/cp-tree.h
index 3461bdb..183578b 100644
--- a/gcc/cp/cp-tree.h
+++ b/gcc/cp/cp-tree.h
@@ -2570,6 +2570,7 @@ extern tree build_dynamic_cast			PROTO((tree, tree));
 extern void synthesize_tinfo_fn			PROTO((tree));
 
 /* in search.c */
+extern int types_overlap_p			PROTO((tree, tree));
 extern void push_memoized_context		PROTO((tree, int));
 extern void pop_memoized_context		PROTO((int));
 extern tree get_vbase				PROTO((tree, tree));
diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c
index 4650bf4..287c8ad 100644
--- a/gcc/cp/decl.c
+++ b/gcc/cp/decl.c
@@ -5002,7 +5002,7 @@ lookup_name_current_level (name)
 
 static void
 signal_catch (sig)
-     int sig;
+     int sig ATTRIBUTE_UNUSED;
 {
   signal (SIGSEGV, SIG_DFL);
 #ifdef SIGIOT
diff --git a/gcc/cp/decl2.c b/gcc/cp/decl2.c
index 927efb8..200ace4 100644
--- a/gcc/cp/decl2.c
+++ b/gcc/cp/decl2.c
@@ -3743,7 +3743,6 @@ merge_functions (s1, s2)
      tree s1;
      tree s2;
 {
-  tree tmp, tempn;
   if (TREE_CODE (s2) == OVERLOAD)
     while (s2)
       {
diff --git a/gcc/cp/error.c b/gcc/cp/error.c
index 6173921..9ec1f28 100644
--- a/gcc/cp/error.c
+++ b/gcc/cp/error.c
@@ -1706,7 +1706,7 @@ type_as_string (typ, v)
 char *
 expr_as_string (decl, v)
      tree decl;
-     int v;
+     int v ATTRIBUTE_UNUSED;
 {
   OB_INIT ();
 
@@ -1804,7 +1804,7 @@ cp_line_of (t)
 char *
 code_as_string (c, v)
      enum tree_code c;
-     int v;
+     int v ATTRIBUTE_UNUSED;
 {
   return tree_code_name [c];
 }
@@ -1812,7 +1812,7 @@ code_as_string (c, v)
 char *
 language_as_string (c, v)
      enum languages c;
-     int v;
+     int v ATTRIBUTE_UNUSED;
 {
   switch (c)
     {
@@ -1832,7 +1832,8 @@ language_as_string (c, v)
 
 char *
 parm_as_string (p, v)
-     int p, v;
+     int p;
+     int v ATTRIBUTE_UNUSED;
 {
   if (p < 0)
     return "`this'";
@@ -1844,7 +1845,7 @@ parm_as_string (p, v)
 char *
 op_as_string (p, v)
      enum tree_code p;
-     int v;
+     int v ATTRIBUTE_UNUSED;
 {
   static char buf[] = "operator                ";
 
@@ -1858,7 +1859,7 @@ op_as_string (p, v)
 char *
 assop_as_string (p, v)
      enum tree_code p;
-     int v;
+     int v ATTRIBUTE_UNUSED;
 {
   static char buf[] = "operator                ";
 
@@ -1897,7 +1898,7 @@ args_as_string (p, v)
 char *
 cv_as_string (p, v)
      tree p;
-     int v;
+     int v ATTRIBUTE_UNUSED;
 {
   OB_INIT ();
 
diff --git a/gcc/cp/lex.c b/gcc/cp/lex.c
index 57707aa..36a0368 100644
--- a/gcc/cp/lex.c
+++ b/gcc/cp/lex.c
@@ -37,6 +37,7 @@ Boston, MA 02111-1307, USA.  */
 #include "obstack.h"
 #include "c-pragma.h"
 #include "toplev.h"
+#include "output.h"
 
 /* MULTIBYTE_CHARS support only works for native compilers.
    ??? Ideally what we want is to model widechar support after
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 5b860ab..e993877 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -5684,7 +5684,7 @@ type_unification (tparms, targs, parms, args, targs_in,
 	return 1;
 
       explicit_mask = alloca (sizeof (int) * TREE_VEC_LENGTH (targs));
-      bzero (explicit_mask, sizeof(int) * TREE_VEC_LENGTH (targs));
+      bzero ((char *) explicit_mask, sizeof(int) * TREE_VEC_LENGTH (targs));
 
       for (i = 0; 
 	   i < TREE_VEC_LENGTH (arg_vec) 
diff --git a/gcc/cp/search.c b/gcc/cp/search.c
index 08291a8..c4b1b67 100644
--- a/gcc/cp/search.c
+++ b/gcc/cp/search.c
@@ -3868,7 +3868,7 @@ dfs_check_overlap (empty_binfo)
 
 static int
 dfs_no_overlap_yet (t)
-     tree t;
+     tree t ATTRIBUTE_UNUSED;
 {
   return found_overlap == 0;
 }
diff --git a/gcc/cp/tinfo.cc b/gcc/cp/tinfo.cc
index 3f32081..4b68fd1 100644
--- a/gcc/cp/tinfo.cc
+++ b/gcc/cp/tinfo.cc
@@ -77,7 +77,7 @@ dcast (const type_info& desired, int is_public, void *objptr,
     return objptr;
 
   void *match_found = 0;
-  for (int i = 0; i < n_bases; i++)
+  for (size_t i = 0; i < n_bases; i++)
     {
       if (is_public && base_list[i].access != PUBLIC)
 	continue;
diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index fe66a3b..27a9c6e 100644
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -6220,7 +6220,7 @@ build_x_modify_expr (lhs, modifycode, rhs)
 
 int
 language_lvalue_valid (exp)
-     tree exp;
+     tree exp ATTRIBUTE_UNUSED;
 {
   return 1;
 }