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In this section, we describe the functions that accept all types of arrays.
This function returns t if object is an array (i.e., a vector,
a string, a bool-vector or a char-table).
(arrayp [a])
⇒ t
(arrayp "asdf")
⇒ t
(arrayp (syntax-table)) ;; A char-table.
⇒ t
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This function returns the indexth element of array. The first element is at index zero.
(setq primes [2 3 5 7 11 13])
⇒ [2 3 5 7 11 13]
(aref primes 4)
⇒ 11
(aref "abcdefg" 1)
⇒ 98 ; ‘b’ is ASCII code 98.
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See also the function elt, in Sequences.
This function sets the indexth element of array to be object. It returns object.
(setq w [foo bar baz])
⇒ [foo bar baz]
(aset w 0 'fu)
⇒ fu
w
⇒ [fu bar baz]
(setq x "asdfasfd")
⇒ "asdfasfd"
(aset x 3 ?Z)
⇒ 90
x
⇒ "asdZasfd"
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If array is a string and object is not a character, a
wrong-type-argument error results. The function converts a unibyte
string to multibyte if necessary to insert a character.
This function fills the array array with object, so that each element of array is object. It returns array.
(setq a [a b c d e f g])
⇒ [a b c d e f g]
(fillarray a 0)
⇒ [0 0 0 0 0 0 0]
a
⇒ [0 0 0 0 0 0 0]
(setq s "When in the course")
⇒ "When in the course"
(fillarray s ?-)
⇒ "------------------"
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If array is a string and object is not a character, a
wrong-type-argument error results.
The general sequence functions copy-sequence and length are
often useful for objects known to be arrays. Voir la section Sequences.
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Ce document a été généré par Eric Reinbold le 13 Octobre 2007 en utilisant texi2html 1.78.