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 two have 79similar syntax: 80</p> 81<div class="smallexample"> 82<pre class="smallexample"> 83<var>module</var> . <var>id</var> 84<var>scope</var> :: <var>id</var> 85</pre></div> 86 87<p>where <var>scope</var> is the name of a module or a procedure, 88<var>module</var> the name of a module, and <var>id</var> is any declared 89identifier within your program, except another module. 90</p> 91<p>Using the <code>::</code> operator makes <small>GDB</small> search the scope 92specified by <var>scope</var> for the identifier <var>id</var>. If it is not 93found in the specified scope, then <small>GDB</small> searches all scopes 94enclosing the one specified by <var>scope</var>. 95</p> 96<p>Using the <code>.</code> operator makes <small>GDB</small> search the current scope for 97the identifier specified by <var>id</var> that was imported from the 98definition module specified by <var>module</var>. With this operator, it is 99an error if the identifier <var>id</var> was not imported from definition 100module <var>module</var>, or if <var>id</var> is not an identifier in 101<var>module</var>. 102</p> 103 104 105 106</body> 107</html> 108