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<a name="Pointers-to-Arrays"></a>
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Next: <a href="Initializers.html#Initializers" accesskey="n" rel="next">Initializers</a>, Previous: <a href="Variadic-Pointer-Args.html#Variadic-Pointer-Args" accesskey="p" rel="prev">Variadic Pointer Args</a>, Up: <a href="C-Extensions.html#C-Extensions" accesskey="u" rel="up">C Extensions</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="Pointers-to-Arrays-with-Qualifiers-Work-as-Expected"></a>
<h3 class="section">6.26 Pointers to Arrays with Qualifiers Work as Expected</h3>
<a name="index-pointers-to-arrays"></a>
<a name="index-const-qualifier"></a>

<p>In GNU C, pointers to arrays with qualifiers work similar to pointers
to other qualified types. For example, a value of type <code>int (*)[5]</code>
can be used to initialize a variable of type <code>const int (*)[5]</code>.
These types are incompatible in ISO C because the <code>const</code> qualifier
is formally attached to the element type of the array and not the
array itself.
</p>
<div class="smallexample">
<pre class="smallexample">extern void
transpose (int N, int M, double out[M][N], const double in[N][M]);
double x[3][2];
double y[2][3];
<span class="roman">&hellip;</span>
transpose(3, 2, y, x);
</pre></div>


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