Drop_while
drop_while is an operation that omits the longest initial sequence of elements for which a predicate evaluates as true.
Learn C++ by Example
drop_while is a range adaptor that skips an initial sequence of elements while a predicate is true.
- How it is used
- Uses a range view to skip initial values while avoiding iterator bookkeeping and container mutation.
- How deep it goes
- Defines the behavior, demonstrates direct and piped syntax, and contrasts it with repeated iterator-based filtering.
- Examples
- Uses a vector containing 0 through 5 and a predicate that drops values less than 3.
- What you can do after
- Apply it via std::views::drop_while or a pipe to produce readable filtered range views.
Clojure: The Essential Reference
drop-while is a Clojure function that removes the longest prefix of a sequence whose elements satisfy a predicate or returns a transducer that performs that removal.
- How it is used
- Selects a sequence tail after a predicate-defined leading region, or delays transducer reduction until that region ends.
- How deep it goes
- Defines predicate stopping behavior, lazy output, transducer arity, and invalid sequential-input handling.
- Examples
- Demonstrates lazy digit tokenization and transducer composition over a numeric range.
- What you can do after
- Apply it to lazily skip a predicate-matching prefix or compose that behavior into a transducer pipeline.
Read how Clojure: The Essential Reference explains drop_while →
These guides are generated from the text of Manning books by Manning's knowledge graph and link to the sections they draw on. The full books are available on liveBook and at manning.com.