semantics.c (simplify_aggr_init_exprs_r): Add DIRECT_BIND flag in call to build_aggr_init.

	* semantics.c (simplify_aggr_init_exprs_r): Add DIRECT_BIND flag in
	call to build_aggr_init.
	* cp-tree.h (DIRECT_BIND): Document new use of DIRECT_BIND.

From-SVN: r47793

gcc/cp/ChangeLog

+2001-12-08  John David Anglin  <dave@hiauly1.hia.nrc.ca>
+
+	* semantics.c (simplify_aggr_init_exprs_r): Add DIRECT_BIND flag in
+	call to build_aggr_init.
+	* cp-tree.h (DIRECT_BIND): Document new use of DIRECT_BIND.
+
 2001-12-08  Neil Booth  <neil@daikokuya.demon.co.uk>
 
 	* parse.y: Replace uses of the string non-terminal with STRING.

gcc/cp/cp-tree.h

@@ -3312,7 +3312,10 @@ enum overload_flags { NO_SPECIAL = 0, DTOR_FLAG, OP_FLAG, TYPENAME_FLAG };
    LOOKUP_ONLYCONVERTING means that non-conversion constructors are not tried.
    DIRECT_BIND means that if a temporary is created, it should be created so
      that it lives as long as the current variable bindings; otherwise it
-     only lives until the end of the complete-expression.
+     only lives until the end of the complete-expression.  It also forces
+     direct-initialization in cases where other parts of the compiler have
+     already generated a temporary, such as reference initialization and the
+     catch parameter.
    LOOKUP_SPECULATIVELY means return NULL_TREE if we cannot find what we are
      after.  Note, LOOKUP_COMPLAIN is checked and error messages printed
      before LOOKUP_SPECULATIVELY is checked.

gcc/cp/semantics.c

@@ -2320,7 +2320,8 @@ simplify_aggr_init_exprs_r (tp, walk_subtrees, data)
       int old_ac = flag_access_control;
 
       flag_access_control = 0;
-      call_expr = build_aggr_init (slot, call_expr, LOOKUP_ONLYCONVERTING);
+      call_expr = build_aggr_init (slot, call_expr,
+				   DIRECT_BIND | LOOKUP_ONLYCONVERTING);
       flag_access_control = old_ac;
       copy_from_buffer_p = 1;
     }