From 5ffb4597b376063374f8cdf0d69854a60eeb933b Mon Sep 17 00:00:00 2001 From: Mark Thom Date: Thu, 11 Jun 2020 22:28:05 -0600 Subject: [PATCH] add missing ! in int_pow (#580) --- src/prolog/machine/arithmetic_ops.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/prolog/machine/arithmetic_ops.rs b/src/prolog/machine/arithmetic_ops.rs index 45aecb9b..ad657828 100644 --- a/src/prolog/machine/arithmetic_ops.rs +++ b/src/prolog/machine/arithmetic_ops.rs @@ -472,7 +472,7 @@ impl MachineState { } } (Number::Fixnum(n1), Number::Integer(n2)) => { - if (n1 == 1 || n1 == 0 || n1 == -1) && &*n2 < &0 { + if !(n1 == 1 || n1 == 0 || n1 == -1) && &*n2 < &0 { let n = Number::from(n1); let stub = MachineError::functor_stub(clause_name!("^"), 2); -- 2.54.0