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100 lines
4.3 KiB
HTML
100 lines
4.3 KiB
HTML
4 years ago
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<html lang="en">
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<title>Architecture implementation - 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-Implementation.html#C-Implementation" title="C Implementation">
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<link rel="prev" href="Library-functions-implementation.html#Library-functions-implementation" title="Library functions implementation">
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<link rel="next" href="Locale_002dspecific-behavior-implementation.html#Locale_002dspecific-behavior-implementation" title="Locale-specific behavior implementation">
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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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(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="Architecture-implementation"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Locale_002dspecific-behavior-implementation.html#Locale_002dspecific-behavior-implementation">Locale-specific behavior implementation</a>,
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Previous: <a rel="previous" accesskey="p" href="Library-functions-implementation.html#Library-functions-implementation">Library functions implementation</a>,
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Up: <a rel="up" accesskey="u" href="C-Implementation.html#C-Implementation">C Implementation</a>
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<hr>
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</div>
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<h3 class="section">4.15 Architecture</h3>
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<ul>
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<li><cite>The values or expressions assigned to the macros specified in the
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headers </cite><code><float.h></code><cite>, </cite><code><limits.h></code><cite>, and </cite><code><stdint.h></code><cite>
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(C90, C99 and C11 5.2.4.2, C99 7.18.2, C99 7.18.3, C11 7.20.2, C11 7.20.3).</cite>
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<p>Determined by ABI.
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<li><cite>The result of attempting to indirectly access an object with
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automatic or thread storage duration from a thread other than the one
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with which it is associated (C11 6.2.4).</cite>
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<p>Such accesses are supported, subject to the same requirements for
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synchronization for concurrent accesses as for concurrent accesses to
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any object.
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<li><cite>The number, order, and encoding of bytes in any object
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(when not explicitly specified in this International Standard) (C99
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and C11 6.2.6.1).</cite>
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<p>Determined by ABI.
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<li><cite>Whether any extended alignments are supported and the contexts
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in which they are supported (C11 6.2.8).</cite>
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<p>Extended alignments up to 2^28 (bytes) are supported for
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objects of automatic storage duration. Alignments supported for
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objects of static and thread storage duration are determined by the
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ABI.
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<li><cite>Valid alignment values other than those returned by an _Alignof
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expression for fundamental types, if any (C11 6.2.8).</cite>
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<p>Valid alignments are powers of 2 up to and including 2^28.
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<li><cite>The value of the result of the </cite><code>sizeof</code><cite> and </cite><code>_Alignof</code><cite>
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operators (C90 6.3.3.4, C99 and C11 6.5.3.4).</cite>
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<p>Determined by ABI.
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</ul>
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</body></html>
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