diff options
Diffstat (limited to 'src/algebra/list.spad.pamphlet')
| -rw-r--r-- | src/algebra/list.spad.pamphlet | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/algebra/list.spad.pamphlet b/src/algebra/list.spad.pamphlet index eb0913ef..7290f770 100644 --- a/src/algebra/list.spad.pamphlet +++ b/src/algebra/list.spad.pamphlet @@ -57,7 +57,7 @@ IndexedList(S:Type, mn:Integer): Exports == Implementation where add import %nil: % from Foreign Builtin import %makepair: (S,%) -> % from Foreign Builtin - import %eq: (%,%) -> Boolean from Foreign Builtin + import %peq: (%,%) -> Boolean from Foreign Builtin import %lempty?: % -> Boolean from Foreign Builtin import %head: % -> S from Foreign Builtin import %tail: % -> % from Foreign Builtin @@ -66,7 +66,7 @@ IndexedList(S:Type, mn:Integer): Exports == Implementation where #x == LENGTH(x)$Lisp concat(s:S,x:%) == %makepair(s,x) - eq?(x,y) == %eq(x,y) + eq?(x,y) == %peq(x,y) first x == SPADfirst(x)$Lisp elt(x,"first") == SPADfirst(x)$Lisp empty() == %nil @@ -110,21 +110,21 @@ IndexedList(S:Type, mn:Integer): Exports == Implementation where -- displays cycle with overbar over the cycle y := empty()$List(OutputForm) s := cycleEntry x - while not %eq(x, s) repeat + while not %peq(x, s) repeat y := concat((first x)::OutputForm, y) x := rest x y := reverse! y empty? s => bracket y -- cyclic case: z is cylic part z := list((first x)::OutputForm) - while not %eq(s, rest x) repeat + while not %peq(s, rest x) repeat x := rest x z := concat((first x)::OutputForm, z) bracket concat!(y, overbar commaSeparate reverse! z) if S has SetCategory then x = y == - %eq(x,y) => true + %peq(x,y) => true while not Qnull x and not Qnull y repeat %head x ~=$S %head y => return false x := %tail x @@ -181,7 +181,7 @@ IndexedList(S:Type, mn:Integer): Exports == Implementation where merge!(f, p, q) == Qnull p => q Qnull q => p - %eq(p, q) => error "cannot merge a list into itself" + %peq(p, q) => error "cannot merge a list into itself" if f(%head p, %head q) then (r := t := p; p := %tail p) else (r := t := q; q := %tail q) |