octave-doc 4.2.2-1ubuntu1 / usr / share / doc / octave / octave.html / Debug-Mode.html

This file is indexed.

/usr/share/doc/octave/octave.html/Debug-Mode.html is in octave-doc 4.2.2-1ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Debug Mode (GNU Octave)</title>

<meta name="description" content="Debug Mode (GNU Octave)">
<meta name="keywords" content="Debug Mode (GNU Octave)">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<link href="index.html#Top" rel="start" title="Top">
<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
<link href="Debugging.html#Debugging" rel="up" title="Debugging">
<link href="Call-Stack.html#Call-Stack" rel="next" title="Call Stack">
<link href="Breakpoints.html#Breakpoints" rel="prev" title="Breakpoints">
<style type="text/css">
<!--
a.summary-letter {text-decoration: none}
blockquote.indentedblock {margin-right: 0em}
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
blockquote.smallquotation {font-size: smaller}
div.display {margin-left: 3.2em}
div.example {margin-left: 3.2em}
div.lisp {margin-left: 3.2em}
div.smalldisplay {margin-left: 3.2em}
div.smallexample {margin-left: 3.2em}
div.smalllisp {margin-left: 3.2em}
kbd {font-style: oblique}
pre.display {font-family: inherit}
pre.format {font-family: inherit}
pre.menu-comment {font-family: serif}
pre.menu-preformatted {font-family: serif}
pre.smalldisplay {font-family: inherit; font-size: smaller}
pre.smallexample {font-size: smaller}
pre.smallformat {font-family: inherit; font-size: smaller}
pre.smalllisp {font-size: smaller}
span.nolinebreak {white-space: nowrap}
span.roman {font-family: initial; font-weight: normal}
span.sansserif {font-family: sans-serif; font-weight: normal}
ul.no-bullet {list-style: none}
-->
</style>
<link rel="stylesheet" type="text/css" href="octave.css">


</head>

<body lang="en">
<a name="Debug-Mode"></a>
<div class="header">
<p>
Next: <a href="Call-Stack.html#Call-Stack" accesskey="n" rel="next">Call Stack</a>, Previous: <a href="Breakpoints.html#Breakpoints" accesskey="p" rel="prev">Breakpoints</a>, Up: <a href="Debugging.html#Debugging" accesskey="u" rel="up">Debugging</a> &nbsp; [<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>
</div>
<hr>
<a name="Debug-Mode-1"></a>
<h3 class="section">13.4 Debug Mode</h3>

<p>There are three additional support functions that allow the user to
find out where in the execution of a script Octave entered the debug
mode, and to print the code in the script surrounding the point where
Octave entered debug mode.
</p>
<a name="XREFdbwhere"></a><dl>
<dt><a name="index-dbwhere"></a>: <em></em> <strong>dbwhere</strong></dt>
<dd><p>In debugging mode, report the current file and line number where execution
is stopped.
</p>
<p><strong>See also:</strong> <a href="Call-Stack.html#XREFdbstack">dbstack</a>, <a href="#XREFdblist">dblist</a>, <a href="Breakpoints.html#XREFdbstatus">dbstatus</a>, <a href="Leaving-Debug-Mode.html#XREFdbcont">dbcont</a>, <a href="#XREFdbstep">dbstep</a>, <a href="Call-Stack.html#XREFdbup">dbup</a>, <a href="Call-Stack.html#XREFdbdown">dbdown</a>.
</p></dd></dl>


<a name="XREFdbtype"></a><dl>
<dt><a name="index-dbtype"></a>: <em></em> <strong>dbtype</strong></dt>
<dt><a name="index-dbtype-1"></a>: <em></em> <strong>dbtype</strong> <em><var>lineno</var></em></dt>
<dt><a name="index-dbtype-2"></a>: <em></em> <strong>dbtype</strong> <em><var>startl:endl</var></em></dt>
<dt><a name="index-dbtype-3"></a>: <em></em> <strong>dbtype</strong> <em><var>startl:end</var></em></dt>
<dt><a name="index-dbtype-4"></a>: <em></em> <strong>dbtype</strong> <em><var>func</var></em></dt>
<dt><a name="index-dbtype-5"></a>: <em></em> <strong>dbtype</strong> <em><var>func</var> <var>lineno</var></em></dt>
<dt><a name="index-dbtype-6"></a>: <em></em> <strong>dbtype</strong> <em><var>func</var> <var>startl:endl</var></em></dt>
<dt><a name="index-dbtype-7"></a>: <em></em> <strong>dbtype</strong> <em><var>func</var> <var>startl:end</var></em></dt>
<dd><p>Display a script file with line numbers.
</p>
<p>When called with no arguments in debugging mode, display the script file
currently being debugged.
</p>
<p>An optional range specification can be used to list only a portion of the
file.  The special keyword <code>&quot;end&quot;</code> is a valid line number
specification for the last line of the file.
</p>
<p>When called with the name of a function, list that script file with line
numbers.
</p>
<p><strong>See also:</strong> <a href="#XREFdblist">dblist</a>, <a href="#XREFdbwhere">dbwhere</a>, <a href="Breakpoints.html#XREFdbstatus">dbstatus</a>, <a href="Breakpoints.html#XREFdbstop">dbstop</a>.
</p></dd></dl>


<a name="XREFdblist"></a><dl>
<dt><a name="index-dblist"></a>: <em></em> <strong>dblist</strong></dt>
<dt><a name="index-dblist-1"></a>: <em></em> <strong>dblist</strong> <em><var>n</var></em></dt>
<dd><p>In debugging mode, list <var>n</var> lines of the function being debugged
centered around the current line to be executed.
</p>
<p>If unspecified <var>n</var> defaults to 10 (+/- 5 lines)
</p>
<p><strong>See also:</strong> <a href="#XREFdbwhere">dbwhere</a>, <a href="#XREFdbtype">dbtype</a>, <a href="Call-Stack.html#XREFdbstack">dbstack</a>.
</p></dd></dl>


<p>You may also use <code>isdebugmode</code> to determine whether the debugger is
currently active.
</p>
<a name="XREFisdebugmode"></a><dl>
<dt><a name="index-isdebugmode"></a>: <em></em> <strong>isdebugmode</strong> <em>()</em></dt>
<dd><p>Return true if in debugging mode, otherwise false.
</p>
<p><strong>See also:</strong> <a href="#XREFdbwhere">dbwhere</a>, <a href="Call-Stack.html#XREFdbstack">dbstack</a>, <a href="Breakpoints.html#XREFdbstatus">dbstatus</a>.
</p></dd></dl>


<p>Debug mode also allows single line stepping through a function using
the command <code>dbstep</code>.
</p>
<a name="XREFdbstep"></a><dl>
<dt><a name="index-dbstep"></a>: <em></em> <strong>dbstep</strong></dt>
<dt><a name="index-dbstep-1"></a>: <em></em> <strong>dbstep</strong> <em><var>n</var></em></dt>
<dt><a name="index-dbstep-2"></a>: <em></em> <strong>dbstep</strong> <em>in</em></dt>
<dt><a name="index-dbstep-3"></a>: <em></em> <strong>dbstep</strong> <em>out</em></dt>
<dt><a name="index-dbnext"></a>: <em></em> <strong>dbnext</strong> <em>&hellip;</em></dt>
<dd><p>In debugging mode, execute the next <var>n</var> lines of code.
</p>
<p>If <var>n</var> is omitted, execute the next single line of code.  If the next
line of code is itself defined in terms of an m-file remain in the existing
function.
</p>
<p>Using <code>dbstep in</code> will cause execution of the next line to step into
any m-files defined on the next line.
</p>
<p>Using <code>dbstep out</code> will cause execution to continue until the current
function returns.
</p>
<p><code>dbnext</code> is an alias for <code>dbstep</code>.
</p>
<p><strong>See also:</strong> <a href="Leaving-Debug-Mode.html#XREFdbcont">dbcont</a>, <a href="Leaving-Debug-Mode.html#XREFdbquit">dbquit</a>.
</p></dd></dl>


<p>When in debug mode the <tt class="key">RETURN</tt> key will execute the last entered command.
This is useful, for example, after hitting a breakpoint and entering
<code>dbstep</code> once.  After that, one can advance line by line through the code
with only a single key stroke.
</p>
<hr>
<div class="header">
<p>
Next: <a href="Call-Stack.html#Call-Stack" accesskey="n" rel="next">Call Stack</a>, Previous: <a href="Breakpoints.html#Breakpoints" accesskey="p" rel="prev">Breakpoints</a>, Up: <a href="Debugging.html#Debugging" accesskey="u" rel="up">Debugging</a> &nbsp; [<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>
</div>



</body>
</html>

APT Browse - Built by Thomas Orozco.