93 lines
5.8 KiB
HTML
93 lines
5.8 KiB
HTML
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Set and remove breakpoints" />
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<meta name="abstract" content="You can use breakpoints to stop a program object at a specific point when it is running." />
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<meta name="description" content="You can use breakpoints to stop a program object at a specific point when it is running." />
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<meta name="DC.subject" content="breakpoint, setting, description, removing, from program, unconditional, conditional, characteristics, function" />
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<title>Set and remove breakpoints</title>
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<body id="srbp"><a name="srbp"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Set and remove breakpoints</h1>
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<div><p>You can use breakpoints to stop a program object at a specific
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point when it is running.</p>
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<div class="section"><p> An <strong>unconditional breakpoint</strong> stops the program object at
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a specific statement. A <strong>conditional breakpoint</strong> stops the program object
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when a specific condition at a specific statement is met.</p>
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<p>When the program
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object stops, the Display Module Source display is shown. The appropriate
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module object is shown with the source positioned at the line where the breakpoint
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occurred. This line is highlighted. At this point, you can evaluate variables,
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set more breakpoints, and run any of the debug commands.</p>
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<p>You should
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know the following characteristics about breakpoints before using them: </p>
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<ul><li>When a breakpoint is bypassed, for example with the <span class="cmdname">Goto
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(GOTO)</span> statement, that breakpoint isn't processed.</li>
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<li>When a breakpoint is set on a statement, the breakpoint occurs before
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that statement is processed.</li>
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<li>When a statement with a conditional breakpoint is reached, the conditional
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expression associated with the breakpoint is evaluated before the statement
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is processed.</li>
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<li>Breakpoint functions are specified through debug commands. <div class="p">These functions
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include: <ul><li>Adding breakpoints to program objects</li>
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<li>Removing breakpoints from program objects</li>
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<li>Displaying breakpoint information</li>
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<li>Resuming the running of a program object after a breakpoint has been reached.</li>
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</ul>
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</div>
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</li>
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</ul>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="srubp.htm">Set and remove unconditional breakpoints</a></strong><br />
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There are a variety of ways to set and remove unconditional breakpoints.</li>
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<li class="ulchildlink"><strong><a href="srcbp.htm">Set and remove conditional breakpoints</a></strong><br />
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There are three ways to set and remove conditional breakpoints.</li>
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<li class="ulchildlink"><strong><a href="wrkbreak.htm">Use the Work with Breakpoints display</a></strong><br />
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You can use the Work with Breakpoints display to set or remove breakpoints.</li>
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<li class="ulchildlink"><strong><a href="brclear.htm">Use the BREAK and CLEAR debug commands</a></strong><br />
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An alternate method of setting and removing conditional breakpoints is to use the BREAK and CLEAR debug commands.</li>
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<li class="ulchildlink"><strong><a href="nlss.htm">National Language Sort Sequence (NLSS)</a></strong><br />
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NLSS applies only to non-numeric conditional breakpoint expressions of type Char-8.</li>
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<li class="ulchildlink"><strong><a href="brexam.htm">Examples: Conditional breakpoint</a></strong><br />
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These are examples of setting conditional breakpoints.</li>
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<li class="ulchildlink"><strong><a href="rmbreak.htm">Remove all breakpoints</a></strong><br />
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You can remove all breakpoints, conditional and unconditional, from a program object that has a module object shown on the Display Module Source display by using the CLEAR PGM debug command.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dbgile.htm" title="You can debug your ILE programs by using the ILE source debugger.">Debug ILE programs</a></div>
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</div>
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</div>
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</body>
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