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84 lines
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HTML
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Copyright (C) 2024 Tomas Volf
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<title>SRFI-43 Predicates (Guile Reference Manual)</title>
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<div class="subsubsection-level-extent" id="SRFI_002d43-Predicates">
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Next: <a href="SRFI_002d43-Selectors.html" accesskey="n" rel="next">SRFI-43 Selectors</a>, Previous: <a href="SRFI_002d43-Constructors.html" accesskey="p" rel="prev">SRFI-43 Constructors</a>, Up: <a href="SRFI_002d43.html" accesskey="u" rel="up">SRFI-43 - Vector Library</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="subsubsection" id="SRFI_002d43-Predicates-1"><span>7.5.30.2 SRFI-43 Predicates<a class="copiable-link" href="#SRFI_002d43-Predicates-1"> ¶</a></span></h4>
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<dl class="first-deffn">
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<dt class="deffn" id="index-vector_003f-1"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">vector?</strong> <var class="def-var-arguments">obj</var><a class="copiable-link" href="#index-vector_003f-1"> ¶</a></span></dt>
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<dd><p>Return true if <var class="var">obj</var> is a vector, else return false.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-vector_002dempty_003f"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">vector-empty?</strong> <var class="def-var-arguments">vec</var><a class="copiable-link" href="#index-vector_002dempty_003f"> ¶</a></span></dt>
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<dd><p>Return true if <var class="var">vec</var> is empty, i.e. its length is 0, else return
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false.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-vector_003d"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">vector=</strong> <var class="def-var-arguments">elt=? vec …</var><a class="copiable-link" href="#index-vector_003d"> ¶</a></span></dt>
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<dd><p>Return true if the vectors <var class="var">vec</var> … have equal lengths and
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equal elements according to <var class="var">elt=?</var>. <var class="var">elt=?</var> is always applied
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to two arguments. Element comparison must be consistent with <code class="code">eq?</code>
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in the following sense: if <code class="code">(eq? a b)</code> returns true, then
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<code class="code">(elt=? a b)</code> must also return true. The order in which
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comparisons are performed is unspecified.
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</p></dd></dl>
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