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| <h3 class="section">16.23 Iterators</h3> |
| <a name="index-iterators-in-_002emd-files"></a> |
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| <p>Ports often need to define similar patterns for more than one machine |
| mode or for more than one rtx code. GCC provides some simple iterator |
| facilities to make this process easier. |
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| <table class="menu" border="0" cellspacing="0"> |
| <tr><td align="left" valign="top">• <a href="Mode-Iterators.html#Mode-Iterators" accesskey="1">Mode Iterators</a>:</td><td> </td><td align="left" valign="top">Generating variations of patterns for different modes. |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Code-Iterators.html#Code-Iterators" accesskey="2">Code Iterators</a>:</td><td> </td><td align="left" valign="top">Doing the same for codes. |
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| <tr><td align="left" valign="top">• <a href="Int-Iterators.html#Int-Iterators" accesskey="3">Int Iterators</a>:</td><td> </td><td align="left" valign="top">Doing the same for integers. |
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| <tr><td align="left" valign="top">• <a href="Subst-Iterators.html#Subst-Iterators" accesskey="4">Subst Iterators</a>:</td><td> </td><td align="left" valign="top">Generating variations of patterns for define_subst. |
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