• d-bugmail puremagic.com (52/52) Mar 12 2006 http://d.puremagic.com/bugzilla/show_bug.cgi?id=41

d-bugmail puremagic.com writes:

http://d.puremagic.com/bugzilla/show_bug.cgi?id=41

           Summary: md5.d compilation error with enable checking
           Product: GDC
           Version: 0.17
          Platform: Macintosh
        OS/Version: Mac OS X
            Status: NEW
          Keywords: ice-on-valid-code, patch
          Severity: normal
          Priority: P2
         Component: glue layer
        AssignedTo: braddr puremagic.com
        ReportedBy: braddr puremagic.com


reduced test case:

module std.md5;
void foo()
{
  byte[] input;
  void *b = &input[0];
}

proposed fix from our irc discussion which does resolve the compilation error. 
Runtime correctness not verified yet.

--- d-codegen.cc.orig        2006-03-11 20:56:16.000000000 -0600
+++ d-codegen.cc     2006-03-11 21:37:14.000000000 -0600
   -269,7 +269,7   
            // %% TODO: stuffing types ok?
            if (target_type->ty == Tpointer) {
                result = addressOf( exp );
-               TREE_TYPE(result) = target_type->toCtype();
+               result = d_convert_basic(target_type->toCtype(), result);
            } else if (target_type->ty == Tarray) {
                TypeSArray * a_type = (TypeSArray*) exp_type;

   -290,7 +290,7   
                    array_len = array_len * sz_a / sz_b;
                }
                tree pointer_value = addressOf( exp );
-               TREE_TYPE(pointer_value) =
target_type->next->pointerTo()->toCtype();
+               pointer_value =
d_convert_basic(target_type->next->pointerTo()->toCtype(), pointer_value);

                // Assumes casting to dynamic array of same type or void
                return darrayVal(target_type, array_len, pointer_value);
--- d-glue.cc.orig   2006-03-11 21:37:48.000000000 -0600
+++ d-glue.cc        2006-03-12 13:11:42.000000000 -0600
   -1424,7 +1424,7   
     // %% check for &array[index] -> array + index ?

     tree t = irs->addressOf(e1->toElem(irs));    
-    TREE_TYPE(t) = type->toCtype(); // %% is this ever needed?
+    t = d_convert_basic(type->toCtype(), t);
     return t;
 }


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