lazy_lists:lazy_list_length/2

SWI-Prolog Did You Know

Search Documentation:

Predicate lazy_list_length/2

HOME
DOWNLOAD
DOCUMENTATION
- Manual
- Packages
- FAQ
- Command line
- PlDoc
- Bluffers▶
- License
- Publications
- Rev 7 Extensions
TUTORIALS
- Beginner▶
- Advanced▶
- Web applications▶
- Semantic web▶
  - ClioPatria
  - RDF namespaces
- Graphics▶
  - XPCE
  - GUI options
- Machine learning▶
  - Probabilistic Logic Programming
- External collections▶
  - Meta level tutorials
- For packagers▶
  - Linux packages
COMMUNITY
COMMERCIAL
WIKI
- Login
- View changes
- Sandbox
- Wiki help
- All tags

swipl
- library

lazy_list_length(+List, -Len) is det: True if Len is the length of the materialized lazy list. Note that length/2 reports the length of the currently materialized part and on backtracking longer lists.