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ANSI Common Lisp  21 Streams 21.2 Dictionary of Streams
| 21.2.25 write-sequence |
Function |
- Syntax:
-
write-sequence
sequence stream &key start end
 sequence
sequence - a sequence.
stream - an output stream.
start, end - bounding index designators of
sequence. The defaults for start and end are 0 and nil, respectively.
- 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.
- 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:
-
Section 3.2.1 Compiler Terminology,
read-sequence,
write-string,
write-line
- 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.
- Allegro CL Implementation Details:
-
None.
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