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Function WRITE-SEQUENCE

Syntax

  • write-sequence sequence stream &key start endsequence

Arguments and Values

Description

write-sequence writes the elements of the subsequence of sequence bounded by start and end to stream.

Examples

(write-sequence "bookworms" *standard-output* :end 4)

book

"bookworms"

Side Effects

Modifies stream.

Affected By

None.

Exceptional Situations

Should be prepared to signal an error of type type-error if sequence is not a proper sequence. Should signal an error of type type-error if start is not a non-negative integer. Should signal an error of type type-error if end is not a non-negative integer or nil.

Might signal an error of type type-error if an element of the bounded sequence is not a member of the stream element type of the stream.

See Also

Notes

*write-sequence** is identical in effect to iterating over the indicated subsequence and writing one element at a time to stream, but may be more efficient than the equivalent loop. An efficient implementation is more likely to exist for the case where the sequence is a vector with the same element type as the stream.