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| author | dos-reis <gdr@axiomatics.org> | 2011-03-09 23:54:10 +0000 |
|---|---|---|
| committer | dos-reis <gdr@axiomatics.org> | 2011-03-09 23:54:10 +0000 |
| commit | 8c47810df65c610513d4be825bd6ee9a56f97f9f (patch) | |
| tree | 7117bf9c5177324de1e4a012b635ed667dec817f /src/algebra/catdef.spad.pamphlet | |
| parent | ccd024277fb8eab4a8b22ed160f4da1609dd94e9 (diff) | |
| download | open-axiom-8c47810df65c610513d4be825bd6ee9a56f97f9f.tar.gz | |
* algebra/catdef.spad.pamphlet (StepThrough) [nextItem]: Now
return Maybe %.
* algebra/ffcat.spad.pamphlet: Propagate change.
* algebra/fmod.spad.pamphlet: Likewise.
* algebra/fraction.spad.pamphlet: Likewise.
* algebra/integer.spad.pamphlet: Likewise.
* algebra/pfbr.spad.pamphlet: Likewise.
* algebra/polycat.spad.pamphlet: Likewise.
* algebra/si.spad.pamphlet: Likewise.
Diffstat (limited to 'src/algebra/catdef.spad.pamphlet')
| -rw-r--r-- | src/algebra/catdef.spad.pamphlet | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/algebra/catdef.spad.pamphlet b/src/algebra/catdef.spad.pamphlet index 2ca2216b..694d169f 100644 --- a/src/algebra/catdef.spad.pamphlet +++ b/src/algebra/catdef.spad.pamphlet @@ -1963,13 +1963,14 @@ SetCategory(): Category == Join(BasicType,CoercibleTo OutputForm) with ++ starting from any initial element. ++ ++ Conditional attributes: -++ infinite\tab{15}repeated \spad{nextItem}'s are never "failed". +++ infinite\tab{15}repeated \spad{nextItem}'s are never \spad{nothing}. StepThrough(): Category == SetCategory with --operations init: % ++ init() chooses an initial object for stepping. - nextItem: % -> Union(%,"failed") - ++ nextItem(x) returns the next item, or "failed" if domain is exhausted. + nextItem: % -> Maybe % + ++ \spad{nextItem(x)} returns the next item, or \spad{failed} + ++ if domain is exhausted. @ \section{category UFD UniqueFactorizationDomain} |