78 lines
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78 lines
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<a name="Ada-Settings"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Ada-Glitches.html#Ada-Glitches">Ada Glitches</a>,
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Previous: <a rel="previous" accesskey="p" href="Ravenscar-Profile.html#Ravenscar-Profile">Ravenscar Profile</a>,
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<h5 class="subsubsection">15.4.10.10 Ada Settings</h5>
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<p><a name="index-Ada-settings-1085"></a>
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<a name="index-set-varsize_002dlimit-1086"></a>
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<dl><dt><code>set varsize-limit </code><var>size</var><dd>Prevent <span class="sc">gdb</span> from attempting to evaluate objects whose size
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is above the given limit (<var>size</var>) when those sizes are computed
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from run-time quantities. This is typically the case when the object
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has a variable size, such as an array whose bounds are not known at
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compile time for example. Setting <var>size</var> to <code>unlimited</code>
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removes the size limitation. By default, the limit is about 65KB.
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<p>The purpose of having such a limit is to prevent <span class="sc">gdb</span> from
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trying to grab enormous chunks of virtual memory when asked to evaluate
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a quantity whose bounds have been corrupted or have not yet been fully
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initialized. The limit applies to the results of some subexpressions
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as well as to complete expressions. For example, an expression denoting
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a simple integer component, such as <code>x.y.z</code>, may fail if the size of
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<code>x.y</code> is variable and exceeds <code>size</code>. On the other hand,
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<span class="sc">gdb</span> is sometimes clever; the expression <code>A(i)</code>, where
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<code>A</code> is an array variable with non-constant size, will generally
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succeed regardless of the bounds on <code>A</code>, as long as the component
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size is less than <var>size</var>.
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<p><a name="index-show-varsize_002dlimit-1087"></a><br><dt><code>show varsize-limit</code><dd>Show the limit on types whose size is determined by run-time quantities.
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</dl>
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