1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- Copyright (C) 1988-2021 Free Software Foundation, Inc. 4 5Permission is granted to copy, distribute and/or modify this document 6under the terms of the GNU Free Documentation License, Version 1.3 or 7any later version published by the Free Software Foundation; with the 8Invariant Sections being "Free Software" and "Free Software Needs 9Free Documentation", with the Front-Cover Texts being "A GNU Manual," 10and with the Back-Cover Texts as in (a) below. 11 12(a) The FSF's Back-Cover Text is: "You are free to copy and modify 13this GNU Manual. 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The 83difference between a <code><gdb:lazy-string></code> and a string wrapped within 84a <code><gdb:value></code> is that a <code><gdb:lazy-string></code> will be treated 85differently by <small>GDB</small> when printing. A <code><gdb:lazy-string></code> is 86retrieved and encoded during printing, while a <code><gdb:value></code> 87wrapping a string is immediately retrieved and encoded on creation. 88</p> 89<p>The following lazy-string-related procedures are provided by the 90<code>(gdb)</code> module: 91</p> 92<dl> 93<dt><a name="index-lazy_002dstring_003f"></a>Scheme Procedure: <strong>lazy-string?</strong> <em>object</em></dt> 94<dd><p>Return <code>#t</code> if <var>object</var> is an object of type <code><gdb:lazy-string></code>. 95Otherwise return <code>#f</code>. 96</p></dd></dl> 97 98<dl> 99<dt><a name="index-lazy_002dstring_002daddress"></a>Scheme Procedure: <strong>lazy-string-address</strong> <em>lazy-sring</em></dt> 100<dd><p>Return the address of <var>lazy-string</var>. 101</p></dd></dl> 102 103<dl> 104<dt><a name="index-lazy_002dstring_002dlength"></a>Scheme Procedure: <strong>lazy-string-length</strong> <em>lazy-string</em></dt> 105<dd><p>Return the length of <var>lazy-string</var> in characters. If the 106length is -1, then the string will be fetched and encoded up to the 107first null of appropriate width. 108</p></dd></dl> 109 110<dl> 111<dt><a name="index-lazy_002dstring_002dencoding"></a>Scheme Procedure: <strong>lazy-string-encoding</strong> <em>lazy-string</em></dt> 112<dd><p>Return the encoding that will be applied to <var>lazy-string</var> 113when the string is printed by <small>GDB</small>. If the encoding is not 114set, or contains an empty string, then <small>GDB</small> will select the 115most appropriate encoding when the string is printed. 116</p></dd></dl> 117 118<dl> 119<dt><a name="index-lazy_002dstring_002dtype"></a>Scheme Procedure: <strong>lazy-string-type</strong> <em>lazy-string</em></dt> 120<dd><p>Return the type that is represented by <var>lazy-string</var>’s type. 121For a lazy string this is a pointer or array type. To 122resolve this to the lazy string’s character type, use <code>type-target-type</code>. 123See <a href="Types-In-Guile.html#Types-In-Guile">Types In Guile</a>. 124</p></dd></dl> 125 126<dl> 127<dt><a name="index-lazy_002dstring_002d_003evalue"></a>Scheme Procedure: <strong>lazy-string->value</strong> <em>lazy-string</em></dt> 128<dd><p>Convert the <code><gdb:lazy-string></code> to a <code><gdb:value></code>. This value 129will point to the string in memory, but will lose all the delayed 130retrieval, encoding and handling that <small>GDB</small> applies to a 131<code><gdb:lazy-string></code>. 132</p></dd></dl> 133 134<hr> 135<div class="header"> 136<p> 137Next: <a href="Architectures-In-Guile.html#Architectures-In-Guile" accesskey="n" rel="next">Architectures In Guile</a>, Previous: <a href="Breakpoints-In-Guile.html#Breakpoints-In-Guile" accesskey="p" rel="previous">Breakpoints In Guile</a>, Up: <a href="Guile-API.html#Guile-API" accesskey="u" rel="up">Guile API</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> 138</div> 139 140 141 142</body> 143</html> 144