error.c (dump_function_decl): Don't print the argument types for a function when…

error.c (dump_function_decl): Don't print the argument types for a function when the verbosity level is negative.

	* error.c (dump_function_decl): Don't print the argument types for
	a function when the verbosity level is negative.
	* call.c (build_over_call): Check format attributes at call-time.
	* pt.c (tsubst_copy): Fix comment.
	(unify): Don't allow unification with variable-sized arrays.
	* semantics.c (finish_stmt_expr): When processing a template make
	the BIND_EXPR long-lived.

From-SVN: r24788

gcc/cp/ChangeLog

+1999-01-20  Mark Mitchell  <mark@markmitchell.com>
+
+	* error.c (dump_function_decl): Don't print the argument types for
+	a function when the verbosity level is negative.
+	
+	* call.c (build_over_call): Check format attributes at call-time.
+
+	* pt.c (tsubst_copy): Fix comment.
+	(unify): Don't allow unification with variable-sized arrays.
+
+	* semantics.c (finish_stmt_expr): When processing a template make
+	the BIND_EXPR long-lived.
+
 1999-01-19  Jason Merrill  <jason@yorick.cygnus.com>
 
 	* decl2.c (finish_vtable_vardecl): Make vtables comdat here.

gcc/cp/call.c

@@ -3364,6 +3364,10 @@ build_over_call (cand, args, flags)
 
   converted_args = nreverse (converted_args);
 
+  if (warn_format && (DECL_NAME (fn) || DECL_ASSEMBLER_NAME (fn)))
+    check_function_format (DECL_NAME (fn), DECL_ASSEMBLER_NAME (fn),
+			   converted_args); 
+
   /* Avoid actually calling copy constructors and copy assignment operators,
      if possible.  */
 

gcc/cp/error.c

@@ -958,8 +958,9 @@ dump_decl (t, v)
 }
 
 /* Pretty printing for announce_function.  T is the declaration of the
-   function we are interested in seeing.  V is non-zero if we should print
-   the type that this function returns.  */
+   function we are interested in seeing.  If V is zero, we print the
+   argument types.  If V is positive, we also print the return types.
+   If V is negative, we do not even print the argument types.  */
 
 static void
 dump_function_decl (t, v)
@@ -985,9 +986,8 @@ dump_function_decl (t, v)
   else if (TREE_CODE (fntype) == METHOD_TYPE)
     cname = TREE_TYPE (TREE_VALUE (parmtypes));
 
-  v = (v > 0);
-  
-  if (v)
+  /* Print the return type.  */
+  if (v > 0)
     {
       if (DECL_STATIC_FUNCTION_P (t))
 	OB_PUTS ("static ");
@@ -1001,6 +1001,7 @@ dump_function_decl (t, v)
 	}
     }
 
+  /* Print the function name.  */
   if (cname)
     {
       dump_type (cname, 0);
@@ -1021,7 +1022,11 @@ dump_function_decl (t, v)
     parmtypes = TREE_CHAIN (parmtypes);
   
   dump_function_name (t);
-  
+
+  /* If V is negative, we don't print the argument types.  */
+  if (v < 0)
+    return;
+
   OB_PUTC ('(');
 
   if (parmtypes)

gcc/cp/pt.c

@@ -6329,7 +6329,7 @@ tsubst_copy (t, args, in_decl)
 
 	if (code == BIND_EXPR && !processing_template_decl)
 	  {
-	    /* This processing  should really occur in tsubst_expr,
+	    /* This processing should really occur in tsubst_expr,
 	       However, tsubst_expr does not recurse into expressions,
 	       since it assumes that there aren't any statements
 	       inside them.  Instead, it simply calls
@@ -7504,6 +7504,20 @@ unify (tparms, targs, parm, arg, strict, explicit_mask)
 	return 0;
       else if (targ)
 	return 1;
+
+      /* Make sure that ARG is not a variable-sized array.  (Note that
+	 were talking about variable-sized arrays (like `int[n]'),
+	 rather than arrays of unknown size (like `int[]').)  We'll
+	 get very confused by such a type since the bound of the array
+	 will not be computable in an instantiation.  Besides, such
+	 types are not allowed in ISO C++, so we can do as we please
+	 here.  */
+      if (TREE_CODE (arg) == ARRAY_TYPE 
+	  && !uses_template_parms (arg)
+	  && (TREE_CODE (TYPE_MAX_VALUE (TYPE_DOMAIN (arg)))
+	      != INTEGER_CST))
+	return 1;
+
       TREE_VEC_ELT (targs, idx) = arg;
       return 0;
 

gcc/cp/semantics.c

@@ -809,8 +809,8 @@ finish_stmt_expr (rtl_expr, expr)
     {
       /* Make a BIND_EXPR for the BLOCK already made.  */
       if (processing_template_decl)
-	result = build (BIND_EXPR, NULL_TREE,
-			NULL_TREE, last_tree, expr);
+	result = build_min_nt (BIND_EXPR, NULL_TREE, last_tree,
+			       NULL_TREE);
       else
 	result = build (BIND_EXPR, TREE_TYPE (rtl_expr),
 			NULL_TREE, rtl_expr, expr);

gcc/testsuite/g++.old-deja/g++.other/printf1.C

+// Build don't link:
+// Special g++ Options: -Wall
+
+struct a
+{
+  void x(char *f,...) __attribute__((format(printf,2,3)));
+};
+
+int main()
+{
+  a A;
+  A.x("%d"); // WARNING - too few arguments for format
+  return 0;
+}

gcc/testsuite/g++.old-deja/g++.pt/crash27.C

+// Build don't link:
+
+template<int i> int f (void)
+{
+        if (__extension__ ({ 1; }))
+                return 0;
+        return 1;
+}
+
+void g (void)
+{
+        f<1> ();
+}

gcc/testsuite/g++.old-deja/g++.pt/crash28.C

+// Build don't link:
+// Special g++ Options:
+
+template <class ARRY>
+inline unsigned int asize(ARRY &a)
+{
+  return sizeof(a) / sizeof(a[0]);
+}
+
+int f(unsigned int n) {
+  int x[n];
+
+  asize(x); // ERROR - no matching function
+};