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References: <bug-40793-17961@http.gcc.gnu.org/bugzilla/>
Subject: [Bug c++/40793] "Error: no matching function for call to XYZ" doesn't display function-template-arguments
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From: "manu at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
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------- Comment #7 from manu at gcc dot gnu dot org  2010-07-01 21:31 -------
With the patch below, we print this:

pr40793.C:5:31: error: no matching function for call to ‘staticPrint<double,
"text">()’
pr40793.C:2:18: note: candidate is: template<class T, T t> void staticPrint()

but I am not sure if it is possible to print the type of "text". Any ideas?


Index: call.c
===================================================================
--- call.c      (revision 161658)
+++ call.c      (working copy)
@@ -3247,12 +3247,19 @@ build_new_function_call (tree fn, VEC(tr
        {
          if (!any_viable_p && candidates && ! candidates->next
              && (TREE_CODE (candidates->fn) == FUNCTION_DECL))
            return cp_build_function_call_vec (candidates->fn, args, complain);
          if (TREE_CODE (fn) == TEMPLATE_ID_EXPR)
-           fn = TREE_OPERAND (fn, 0);
-         if (!any_viable_p)
+           {
+             if (!any_viable_p)
+               error ("no matching function for call to %<%E(%A)%>",
+                      fn, build_tree_list_vec (*args));
+             else
+               error ("call of overloaded %<%E(%A)%> is ambiguous",
+                      fn, build_tree_list_vec (*args));
+           }
+         else if (!any_viable_p)
            error ("no matching function for call to %<%D(%A)%>",
                   DECL_NAME (OVL_CURRENT (fn)), build_tree_list_vec (*args));
          else
            error ("call of overloaded %<%D(%A)%> is ambiguous",
                   DECL_NAME (OVL_CURRENT (fn)), build_tree_list_vec (*args));


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40793