88 lines
3.9 KiB
HTML
88 lines
3.9 KiB
HTML
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Copyright (C) 1996-1997, 2000-2005, 2009-2023 Free Software Foundation,
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Copyright (C) 2021 Maxime Devos
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Copyright (C) 2024 Tomas Volf
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<title>Vectors (Guile Reference Manual)</title>
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<link href="Concept-Index.html" rel="index" title="Concept Index">
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<link href="Data-Types.html" rel="up" title="Data Types">
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<div class="subsection-level-extent" id="Vectors">
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Next: <a href="Bit-Vectors.html" accesskey="n" rel="next">Bit Vectors</a>, Previous: <a href="Lists.html" accesskey="p" rel="prev">Lists</a>, Up: <a href="Data-Types.html" accesskey="u" rel="up">Data Types</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<h4 class="subsection" id="Vectors-1"><span>6.6.10 Vectors<a class="copiable-link" href="#Vectors-1"> ¶</a></span></h4>
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<a class="index-entry-id" id="index-Vectors"></a>
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<p>Vectors are sequences of Scheme objects. Unlike lists, the length of a
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vector, once the vector is created, cannot be changed. The advantage of
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vectors over lists is that the time required to access one element of a vector
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given its <em class="dfn">position</em> (synonymous with <em class="dfn">index</em>), a zero-origin number,
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is constant, whereas lists have an access time linear to the position of the
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accessed element in the list.
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</p>
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<p>Vectors can contain any kind of Scheme object; it is even possible to
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have different types of objects in the same vector. For vectors
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containing vectors, you may wish to use <a class="ref" href="Arrays.html">Arrays</a> instead.
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Note, too, that vectors are a special case of one dimensional
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non-uniform arrays and that array procedures operate happily on vectors.
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</p>
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<p>Also see <a class="ref" href="SRFI_002d43.html">SRFI-43 - Vector Library</a>, <a class="ref" href="R6RS-Support.html">R6RS Support</a>, or <a class="ref" href="R7RS-Support.html">R7RS Support</a>, for
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more comprehensive vector libraries.
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</p>
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<ul class="mini-toc">
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<li><a href="Vector-Syntax.html" accesskey="1">Read Syntax for Vectors</a></li>
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<li><a href="Vector-Creation.html" accesskey="2">Dynamic Vector Creation and Validation</a></li>
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<li><a href="Vector-Accessors.html" accesskey="3">Accessing and Modifying Vector Contents</a></li>
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<li><a href="Vector-Accessing-from-C.html" accesskey="4">Vector Accessing from C</a></li>
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<li><a href="Uniform-Numeric-Vectors.html" accesskey="5">Uniform Numeric Vectors</a></li>
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</ul>
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