change 1 to 0
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@ -75,7 +75,7 @@ pub fn eval_mem(bf_str: &&str, mem: &mut [u8], pointer: &mut usize) -> Result<()
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}
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if char == '<' {
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if *pointer == 0 {
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return Err(format!("Attempt to reduce pointer to less than 1 ({})", pos));
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return Err(format!("Attempt to reduce pointer to less than 0 ({})", pos));
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}
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*pointer -= 1;
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continue
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