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| <a name="Architecture"></a> |
| <h3 class="section">4.15 Architecture</h3> |
| |
| <ul> |
| <li> <cite>The values or expressions assigned to the macros specified in the |
| headers <code><float.h></code>, <code><limits.h></code>, and <code><stdint.h></code> |
| (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> |
| |
| <p>Determined by ABI. |
| </p> |
| </li><li> <cite>The result of attempting to indirectly access an object with |
| automatic or thread storage duration from a thread other than the one |
| with which it is associated (C11 6.2.4).</cite> |
| |
| <p>Such accesses are supported, subject to the same requirements for |
| synchronization for concurrent accesses as for concurrent accesses to |
| any object. |
| </p> |
| </li><li> <cite>The number, order, and encoding of bytes in any object |
| (when not explicitly specified in this International Standard) (C99 |
| and C11 6.2.6.1).</cite> |
| |
| <p>Determined by ABI. |
| </p> |
| </li><li> <cite>Whether any extended alignments are supported and the contexts |
| in which they are supported (C11 6.2.8).</cite> |
| |
| <p>Extended alignments up to <em>2^{28}</em> (bytes) are supported for |
| objects of automatic storage duration. Alignments supported for |
| objects of static and thread storage duration are determined by the |
| ABI. |
| </p> |
| </li><li> <cite>Valid alignment values other than those returned by an _Alignof |
| expression for fundamental types, if any (C11 6.2.8).</cite> |
| |
| <p>Valid alignments are powers of 2 up to and including <em>2^{28}</em>. |
| </p> |
| </li><li> <cite>The value of the result of the <code>sizeof</code> and <code>_Alignof</code> |
| operators (C90 6.3.3.4, C99 and C11 6.5.3.4).</cite> |
| |
| <p>Determined by ABI. |
| </p> |
| </li></ul> |
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