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correct sign/1 (#216)

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This commit is contained in:
Mark Thom
2019-10-27 14:18:32 -06:00
parent 67a00e4deb
commit 0dcd9e5805
2 changed files with 4 additions and 3 deletions
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3
src/prolog/heap_print.rs
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@@ -329,7 +329,8 @@ pub fn requires_space(atom: &str, op: &str) -> bool {
.next() .next()
.map(|oc| { .map(|oc| {
if ac == '0' { if ac == '0' {
oc == 'b' || oc == 'x' || oc == 'o' || oc == '\'' || alpha_numeric_char!(oc) oc == 'b' || oc == 'x' || oc == 'o' || oc == '\''
|| oc == '(' || alpha_numeric_char!(oc)
} else if alpha_numeric_char!(ac) { } else if alpha_numeric_char!(ac) {
oc == '(' || alpha_numeric_char!(oc) oc == '(' || alpha_numeric_char!(oc)
} else if graphic_token_char!(ac) { } else if graphic_token_char!(ac) {

4
src/prolog/machine/machine_state_impl.rs
View File

@@ -1381,9 +1381,9 @@ impl MachineState {
if n.is_positive() { if n.is_positive() {
Integer::from(1) Integer::from(1)
} else if n.is_negative() { } else if n.is_negative() {
Integer::from(0)
} else {
Integer::from(-1) Integer::from(-1)
} else {
Integer::from(0)
} }
} }