+Fri Sep 4 00:34:30 1992 Per Bothner (bothner@rtl.cygnus.com)
+
+ A bunch of changes mostly to improve debugging of C++ programs.
+ Specifically, the calling of inferiors methods is improved.
+
+ * value.h: New macros METHOD_PTR_IS_VIRTUAL,
+ METHOD_PTR_FROM_VOFFSET, METHOD_PTR_TO_VOFFSET to partially
+ hide the implementation details of pointer-to-method objects.
+ How to tell if the pointer points to a virtual method is
+ still very dependent on the particular compiler, but this
+ should make it easier to find the places to change.
+ * eval.c (evaluate_subexp [case OP_FUNCALL]), valprint.c
+ (val_print [case TYPE_CODE_PTR]): Use the new METHOD_PTR_*
+ macros, instead of a hard-wired-in code that incorrectly
+ assumed a no-longerused representation of pointer-to-method
+ values. And otherwise fix the relevant bit-rotted code.
+
+ * valprint.c (type_print_base [case TYPE_CODE_STRUCT]):
+ If there are both fields and methods, put a space between.
+
+ * stabsread.c (read_struct_type): Fix bug in handling of
+ GNU C++ anonymous type (indicated by CPLUS_MARKER followed
+ by '_'). (It used to prematurely exit the loop reading in
+ the fields, so it would think it should start reading
+ methods while still in the fields. This could crash gdb
+ given a gcc that can emit nested type information.)
+
+ * valops.c (search_struct_method): Pass 'this' value by
+ reference instead of by value. This provides a more
+ consistent interface through a recursive search where the
+ "bottom" functions may need to adjust offsets (due to multiple
+ inheritance).
+ * valops.c, value.h, values.c: Pass extra parameters to
+ value_fn_field and value_virtual_fn_field so we can
+ correctly adjust offset for multiple inheritance.
+ * eval.c (evaluate_subexp [case OP_FUNCALL]): Simplify
+ virtual function calls by using value_virtual_fn_field().
+ * values.c: New function baseclass_offset, derived from
+ baseclass_addr (which perhaps can be made obsolete?).
+ It returns an offset rather than an address. This is a
+ cleaner interface since it doesn't mess around allocating
+ new values.
+ * valops.c (search_struct_method): Use baseclass_offset
+ rather than baseclass_addr.
+