boostorg/functional
1
0
Fork 1
mirror of https://github.com/boostorg/functional.git synced 2025-08-01 21:44:28 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'develop'

Browse Source
This commit is contained in:
Daniel James
2014-07-28 23:32:57 +01:00
parent a52395f96f 770e4dea08
commit 8bbbb7a71c
2 changed files with 32 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
hash/doc/changes.qbk
View File

@@ -170,11 +170,8 @@
[h2 Boost 1.56.0]
* Fix some shadowed variable warnings ([ticket 9377]).
* Fix allocator use in documentation ([ticket 9719]).
* Always use prime number of buckets for integers. Fixes performance
regression when inserting consecutive integers, although makes other
uses slower ([ticket 9282]).
* Only construct elements using allocators, as specified in C++11 standard.
* Removed some Visual C++ 6 workarounds.
* Ongoing work on improving `hash_combine`. This changes the combine function
which was previously defined in the reference documentation.
[endsect]

30
hash/doc/ref.xml
View File

@@ -59,6 +59,11 @@ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Forward declared in
<code>&lt;boost/functional/hash_fwd.hpp&gt;</code>
</para>
<para>
This hash function is not intended for general use, and isn't
guaranteed to be equal during separate runs of a program - so
please don't use it for any persistent storage or communication.
</para>
</notes>
<throws><para>
Only throws if
@@ -450,7 +455,15 @@ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Called repeatedly to incrementally create a hash value from
several variables.
</simpara></purpose>
<effects><programlisting>seed ^= <functionname>hash_value</functionname>(v) + 0x9e3779b9 + (seed &lt;&lt; 6) + (seed &gt;&gt; 2);</programlisting></effects>
<effects>
Updates <code>seed</code> with a new hash value generated by
combining it with the result of
<code><functionname>hash_value</functionname>(v)</code>. Will
always produce the same result for the same combination of
<code>seed</code> and
<code><functionname>hash_value</functionname>(v)</code> during
the single run of a program.
</effects>
<notes>
<para><functionname>hash_value</functionname> is called without
qualification, so that overloads can be found via ADL.</para>
@@ -459,6 +472,11 @@ file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Forward declared in
<code>&lt;boost/functional/hash_fwd.hpp&gt;</code>
</para>
<para>
This hash function is not intended for general use, and isn't
guaranteed to be equal during separate runs of a program - so
please don't use it for any persistent storage or communication.
</para>
</notes>
<throws>
Only throws if <functionname>hash_value</functionname>(T) throws.
@@ -527,6 +545,11 @@ for(; first != last; ++first)
Forward declared in
<code>&lt;boost/functional/hash_fwd.hpp&gt;</code>
</para>
<para>
This hash function is not intended for general use, and isn't
guaranteed to be equal during separate runs of a program - so
please don't use it for any persistent storage or communication.
</para>
</notes>
<throws><para>
Only throws if <code><functionname>hash_value</functionname>(std::iterator_traits&lt;It&gt;::value_type)</code>
@@ -784,6 +807,11 @@ for(; first != last; ++first)
<notes>
<para>This is an extension to TR1</para>
<para>
This hash function is not intended for general use, and isn't
guaranteed to be equal during separate runs of a program - so
please don't use it for any persistent storage or communication.
</para>
</notes>
<throws>