[c++] builtin functions and namespaces

[brent@rcfile.org]

On 27 Sep 2000 at 16:39 (+0200), Martin von Loewis wrote:
| > gcc/cp/call.c: build_new_function_call()
| >   which kicks the error because
| > gcc/cp/call.c: tourney()
| >   returns 0 because
| > gcc/cp/call.c: joust()
| >   returns 0 because joust can't decide whether to pick the 
| >   ::std::__builtin_fn or ::__buitlin_fn as the better candidate

ok, so far I see:
  init_decl_processing()
  c_common_nodes_and_builtins()
    [the builtins in question are created here]
  ...
  yyparse()
  finish_call_expr()
  build_x_function_call()
  build_new_function_call()
    [error emitted in here]

I tried to follow the (desired) function's declaration, but seem to
be stuck in bison.simple (or possibly just tired and impatient :)

...anyway, my thought it to stuff all of the builtins into an anon
namespace at creation time, so they don't appear in ::. this means
that foreach fn declaration, we'd have to traverse a list of builtins
to see if our declared fn name matches a builtin, pull the builtin
into the current_namespace.

is this a reasonable approach? I'm not quite sure (yet) where this'd
be done, but I'll dig for that tomorrow.

another option (still) _appears_ to be to check if the function decl
is _also_ a builtin decl at call time.

thoughts? advice?

question: (excuse my lack of knowledge, please)
  given an existing function decl tree, how would I (re)classify
  that tree node as having been defined in a namespace, when it
  was originally _not_?


thanks.
  brent

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