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fix unbound throw (obs from Paualo Moura).

This commit is contained in:
Vitor Santos Costa 2013-01-17 14:00:12 +00:00
parent e7da973009
commit f98a2d5e01
1 changed files with 5 additions and 1 deletions
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6
pl/boot.yap
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@ -1194,8 +1194,12 @@ throw(_Ball) :-
!,
'$jump_env_and_store_ball'(Ball).
throw(Ball) :-
( var(Ball) ->
'$do_error'(instantiation_error,throw(Ball))
;
% get current jump point
'$jump_env_and_store_ball'(Ball).
'$jump_env_and_store_ball'(Ball)
).
% just create a choice-point