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Also add aligned float types. Add docs. No tests yet.

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Beman
2014-08-13 13:44:28 -04:00
parent 8ea7d201f9
commit f489fad5e0
2 changed files with 57 additions and 39 deletions
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88
doc/types.html
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@@ -223,108 +223,122 @@ conventions for common use cases:</p>
<tr>
<td width="18%" align="center"><b><i>Name</i></b></td>
<td width="10%" align="center"><b><i>Endianness</i></b></td>
<td width="49%" align="center"><b><i>Alignment</i></b></td>
<td width="10%" align="center"><b><i>Sign</i></b></td>
<td width="15%" align="center"><b><i>Sizes in bits (n)</i></b></td>
<td width="49%" align="center"><b><i>Alignment</i></b></td>
</tr>
<tr>
<td width="18%"><code>big_align_int</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>big</code></td>
<td width="49%" align="center"><code>yes</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">16,32,64</td>
<td width="49%" align="center"><code>yes</code></td>
</tr>
<tr>
<td width="18%"><code>big_align_uint</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>big</code></td>
<td width="49%" align="center"><code>yes</code></td>
<td width="10%" align="center">unsigned</td>
<td width="15%">16,32,64</td>
<td width="49%" align="center"><code>yes</code></td>
</tr>
<tr>
<td width="18%"><code>big_align_float</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>big</code></td>
<td width="49%" align="center"><code>yes</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">32,64</td>
<td width="49%" align="center"><code>yes</code></td>
</tr>
<tr>
<td width="18%"><code>little_align_int</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">16,32,64</td>
<td width="49%" align="center"><code>yes</code></td>
</tr>
<tr>
<td width="18%"><code>little_align_uint</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="10%" align="center">unsigned</td>
<td width="15%">16,32,64</td>
<td width="49%" align="center"><code>yes</code></td>
</tr>
<tr>
<td width="18%"><code>little_align_float</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">32,64</td>
<td width="49%" align="center"><code>yes</code></td>
</tr>
<tr>
<td width="18%"><code>big_int</code><b><i>n</i></b><code>_t</code></td>
<td width="10%" align="center"><code>big</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">8,16,24,32,40,48,56,64</td>
<td width="49%" align="center"><code>no</code></td>
</tr>
</tr>
<tr>
<td width="18%"><code>big_uint</code><i><b>n</b></i><code>_</code><code>t</code></td>
<td width="18%"><code>big_uint</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>big</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">unsigned</td>
<td width="15%">8,16,24,32,40,48,56,64</td>
<td width="49%" align="center"><code>no</code></td>
</tr>
</tr>
<tr>
<td width="18%"><code>big_float</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>big</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">32,64</td>
</tr>
<tr>
<td width="18%"><code>little_align_int</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="49%" align="center"><code>yes</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">16,32,64</td>
</tr>
<tr>
<td width="18%"><code>little_align_uint</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="49%" align="center"><code>yes</code></td>
<td width="10%" align="center">unsigned</td>
<td width="15%">16,32,64</td>
</tr>
<tr>
<td width="18%"><code>little_align_float</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="49%" align="center"><code>yes</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">32,64</td>
<td width="49%" align="center"><code>no</code></td>
</tr>
<tr>
<td width="18%"><code>little_int</code><i><b>n</b></i><code>_</code><code>t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">8,16,24,32,40,48,56,64</td>
<td width="49%" align="center"><code>no</code></td>
</tr>
<tr>
<td width="18%"><code>little_uint</code><i><b>n</b></i><code>_</code><code>t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">unsigned</td>
<td width="15%">8,16,24,32,40,48,56,64</td>
<td width="49%" align="center"><code>no</code></td>
</tr>
<tr>
<td width="18%"><code>little_float</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>little</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">32,64</td>
<td width="49%" align="center"><code>no</code></td>
</tr>
<tr>
<td width="18%"><code>native_align_float</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>native</code></td>
<td width="49%" align="center"><code>yes</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">32,64</td>
</tr>
<tr>
<td width="18%"><code>native_int</code><i><b>n</b></i><code>_</code><code>t</code></td>
<td width="10%" align="center"><code>native</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">8,16,24,32,40,48,56,64</td>
<td width="49%" align="center"><code>no</code></td>
</tr>
<tr>
<td width="18%"><code>native_uint</code><i><b>n</b></i><code>_</code><code>t</code></td>
<td width="10%" align="center"><code>native</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">unsigned</td>
<td width="15%">8,16,24,32,40,48,56,64</td>
<td width="49%" align="center"><code>no</code></td>
</tr>
<tr>
<td width="18%"><code>native_float</code><i><b>n</b></i><code>_t</code></td>
<td width="10%" align="center"><code>native</code></td>
<td width="49%" align="center"><code>no</code></td>
<td width="10%" align="center">signed</td>
<td width="15%">32,64</td>
</tr>
</table>
</blockquote>
<p>The unaligned types do not cause compilers to insert padding bytes in classes
@@ -628,7 +642,7 @@ differs from endian representation size. Vicente Botet and other reviewers
suggested supporting floating point types.</p>
<hr>
<p>Last revised:
<!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan -->12 August, 2014<!--webbot bot="Timestamp" endspan i-checksum="34569" --></p>
<!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan -->13 August, 2014<!--webbot bot="Timestamp" endspan i-checksum="34571" --></p>
<p>© Copyright Beman Dawes, 2006-2009, 2013</p>
<p>Distributed under the Boost Software License, Version 1.0. See
<a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/ LICENSE_1_0.txt</a></p>

8
include/boost/endian/types.hpp
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@@ -194,9 +194,11 @@ namespace endian
typedef big_uint56_t native_uint56_t;
typedef big_uint64_t native_uint64_t;
// unaligned native endian floating point types
// native endian floating point types
typedef big_float32_t native_float32_t;
typedef big_float64_t native_float64_t;
typedef big_align_float32_t native_align_float32_t;
typedef big_align_float64_t native_align_float64_t;
# else
// unaligned native endian signed integer types
typedef little_int8_t native_int8_t;
@@ -218,9 +220,11 @@ namespace endian
typedef little_uint56_t native_uint56_t;
typedef little_uint64_t native_uint64_t;
// unaligned native endian floating point types
// native endian floating point types
typedef little_float32_t native_float32_t;
typedef little_float64_t native_float64_t;
typedef little_align_float32_t native_align_float32_t;
typedef little_align_float64_t native_align_float64_t;
# endif
} // namespace boost
} // namespace endian