4257 - abortive attempt at safe fat pointers

I've been working on this slowly over several weeks, but it's too hard
to support 0 as the null value for addresses. I constantly have to add
exceptions for scalar value corresponding to an address type (now
occupying 2 locations). The final straw is the test for 'reload':

  x:num <- reload text

'reload' returns an address. But there's no way to know that for
arbitrary instructions.

New plan: let's put this off for a bit and first create support for
literals. Then use 'null' instead of '0' for addresses everywhere. Then
it'll be easy to just change what 'null' means.

1 files changed, 1 insertions, 0 deletions

diff --git a/050scenario.cc b/050scenario.cc
index e84a18e9..c4f2541b 100644
--- a/050scenario.cc
+++ b/050scenario.cc
@@ -79,6 +79,7 @@ Scenario_names = Scenario_names_snapshot;
 :(before "End Command Handlers")
 else if (command == "scenario") {
   scenario result = parse_scenario(in);
+//?   result.name.clear();  // disable running scenarios
   if (!result.name.empty())
     Scenarios.push_back(result);
 }