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74 lines
3.1 KiB
HTML
74 lines
3.1 KiB
HTML
4 years ago
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<html lang="en">
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<head>
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<title>Pointers to Arrays - Using the GNU Compiler Collection (GCC)</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Using the GNU Compiler Collection (GCC)">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="C-Extensions.html#C-Extensions" title="C Extensions">
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<link rel="prev" href="Pointer-Arith.html#Pointer-Arith" title="Pointer Arith">
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<link rel="next" href="Initializers.html#Initializers" title="Initializers">
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Copyright (C) 1988-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being ``Funding Free Software'', the Front-Cover
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(see below). A copy of the license is included in the section entitled
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``GNU Free Documentation License''.
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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</head>
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<body>
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<div class="node">
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<a name="Pointers-to-Arrays"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Initializers.html#Initializers">Initializers</a>,
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Previous: <a rel="previous" accesskey="p" href="Pointer-Arith.html#Pointer-Arith">Pointer Arith</a>,
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Up: <a rel="up" accesskey="u" href="C-Extensions.html#C-Extensions">C Extensions</a>
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<hr>
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</div>
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<h3 class="section">6.24 Pointers to Arrays with Qualifiers Work as Expected</h3>
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<p><a name="index-pointers-to-arrays-3012"></a><a name="index-const-qualifier-3013"></a>
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In GNU C, pointers to arrays with qualifiers work similar to pointers
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to other qualified types. For example, a value of type <code>int (*)[5]</code>
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can be used to initialize a variable of type <code>const int (*)[5]</code>.
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These types are incompatible in ISO C because the <code>const</code> qualifier
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is formally attached to the element type of the array and not the
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array itself.
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<pre class="smallexample"> extern void
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transpose (int N, int M, double out[M][N], const double in[N][M]);
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double x[3][2];
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double y[2][3];
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<span class="roman">...</span>
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transpose(3, 2, y, x);
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</pre>
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</body></html>
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