From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Berlin <dan@cgsoftware.com>
To: Keith Seitz <keiths@cygnus.com>
Cc: <gdb-patches@sources.redhat.com>
Subject: Re: [RFC] eval.c (evaluate_subexp_standard) Deal with c++ reference args
Date: Tue, 23 Oct 2001 11:46:00 -0000
Message-id: <507580B9-C7E6-11D5-9D5A-0030657B5340@cgsoftware.com>
References: <Pine.GSO.4.33.0110231036120.23825-100000@makita.cygnus.com>
X-SW-Source: 2001-10/msg00302.html

>
Neither args[0], nor argvec[1], will always be the this pointer.
Try a static class method.


> +      /* Before calling a c++ function, check that reference types are
> +	 passed as reference types and not something else. */
> +      if (argvec[0] != NULL && exp->language_defn->la_language == 
> language_cplus)
> +	{
> +	  struct type **args;
> +	  args = TYPE_ARG_TYPES (VALUE_TYPE (argvec[0]));
> +	  if (args != NULL)
> +	    {
> +	      /* args[0]   = "this" pointer
> +		 args[1]   = first arg type
> +		 argvec[0] = method
> +		 argvec[1] = "this" pointer
> +		 argvec[2] = first argument */
> +	      for (ix = 1; args[ix] != NULL
> +		     && TYPE_CODE (args[ix]) != TYPE_CODE_VOID; ix++)
> +		{
> +		  if (TYPE_CODE (args[ix]) == TYPE_CODE_REF
> +		      && TYPE_CODE (VALUE_TYPE (argvec[2+ix-1])) != TYPE_CODE_REF)
> +		    {
> +		      struct value *v = value_addr (argvec[2+ix-1]);
> +		      argvec[2+ix-1] =
> +			value_cast (lookup_reference_type (VALUE_TYPE (v)), v);
> +		    }
> +		}
> +	    }
> +	}
> +
>      do_call_it:
>
>        if (noside == EVAL_SKIP)
>
>