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revises function object concepts and functional module documenation to reflect

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boost::result_of-based result computation


[SVN r38209]
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Tobias Schwinger
2007-07-13 19:25:34 +00:00
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<link rel="start" href="../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
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@ -21,17 +21,35 @@
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<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="fusion.functional.concepts.callable"></a><a href="callable.html" title=" Callable Object"> Callable Object</a></h4></div></div></div>
<a name="fusion.functional.concepts.callable.description"></a><h5>
<a name="id1241477"></a>
<a href="callable.html#fusion.functional.concepts.callable.description">Description</a>
</h5>
<p>
A pointer to a function, a pointer to member function, a pointer to member
data, or a class type whose objects can appear immediately to the left
of a function call operator.
</p>
<a name="fusion.functional.concepts.callable.models"></a><h5>
<a name="id1241505"></a>
<a href="callable.html#fusion.functional.concepts.callable.models">Models</a>
</h5>
<div class="itemizedlist"><ul type="disc">
<li>
function pointer types
</li>
<li>
member (function or data) pointer types
</li>
<li>
all kinds of function objects
</li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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@ -40,7 +58,7 @@
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<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
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@ -30,37 +31,58 @@
Callable Object"> Deferred
Callable Object</a></h4></div></div></div>
<a name="fusion.functional.concepts.def_callable.description"></a><h5>
<a name="id1187426"></a>
<a name="id1241924"></a>
<a href="def_callable.html#fusion.functional.concepts.def_callable.description">Description</a>
</h5>
<p>
<a href="callable.html" title=" Callable Object">Callable Object</a>
that works with <a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top">Boost.ResultOf</a>
to determine the result of a call (such as the function objects provided
by the standard library).
types that work with <a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top">Boost.ResultOf</a>
to determine the result of a call.
</p>
<a name="fusion.functional.concepts.def_callable.refinement_of"></a><h5>
<a name="id1187469"></a>
<a name="id1241966"></a>
<a href="def_callable.html#fusion.functional.concepts.def_callable.refinement_of">Refinement
of</a>
</h5>
<div class="itemizedlist"><ul type="disc"><li><a href="callable.html" title=" Callable Object">Callable Object</a></li></ul></div>
<div class="sidebar"><p>
note Once C++ supports the <code class="literal">decltype</code> keyword, all models
of <a href="callable.html" title=" Callable Object">Callable Object</a>
will also be models of <a href="def_callable.html" title=" Deferred
Callable Object">Deferred
Callable Object</a>, because function objects won't need client-side
support for <code class="computeroutput"><span class="identifier">result_of</span></code>.
</p></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><code class="computeroutput"><span class="identifier">F</span></code></span></dt>
<dd>
A Deferred Callable Object type
A possibly const qualified Deferred Callable Object type
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code></span></dt>
<dd>
Argument types
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">a1</span>
<span class="special">...</span><span class="identifier">aN</span></code></span></dt>
<dd>
Objects or references to objects with types <code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code>
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span></code></span></dt>
<dd>
Arbitrary types
<code class="computeroutput"><span class="identifier">T</span></code>i is <code class="computeroutput"><span class="identifier">A</span></code>i
<code class="computeroutput"><span class="special">&amp;</span></code> if <code class="computeroutput"><span class="identifier">a</span></code>i
is an LValue, same as <code class="computeroutput"><span class="identifier">A</span></code>i,
otherwise
</dd>
</dl>
</div>
<a name="fusion.functional.concepts.def_callable.expression_requirements"></a><h5>
<a name="id1187555"></a>
<a name="id1242224"></a>
<a href="def_callable.html#fusion.functional.concepts.def_callable.expression_requirements">Expression
requirements</a>
</h5>
@ -70,23 +92,47 @@
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Type</th>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Type
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span></code></a><code class="computeroutput"><span class="special">&lt;</span> <span class="identifier">F</span><span class="special">(</span><span class="identifier">T1</span> <span class="special">...</span><span class="identifier">TN</span><span class="special">)</span> <span class="special">&gt;::</span><span class="identifier">type</span></code>
</td>
<td>Unspecified</td>
<p>
<a href="http://www.boost.org/libs/utility/utility.htm#result_of" target="_top"><code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span></code></a><code class="computeroutput"><span class="special">&lt;</span> <span class="identifier">F</span><span class="special">(</span><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span><span class="special">)</span> <span class="special">&gt;::</span><span class="identifier">type</span></code>
</p>
</td>
<td>
<p>
Result of a call with <code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code>-typed
arguments
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.concepts.def_callable.models"></a><h5>
<a name="id1187678"></a>
<a name="id1242387"></a>
<a href="def_callable.html#fusion.functional.concepts.def_callable.models">Models</a>
</h5>
<div class="itemizedlist"><ul type="disc"><li>
all Fusion <a href="../adapters.html" title=" Adapters">functional adapters</a>
</li></ul></div>
<div class="itemizedlist"><ul type="disc">
<li>
<a href="poly.html" title=" Polymorphic Function
Object">Polymorphic Function
Object</a> types
</li>
<li>
member (function or data) pointer types
</li>
</ul></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
@ -95,7 +141,7 @@
</tr></table>
<hr>
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<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
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@ -22,7 +22,7 @@
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@ -30,45 +30,61 @@
Object"> Polymorphic Function
Object</a></h4></div></div></div>
<a name="fusion.functional.concepts.poly.description"></a><h5>
<a name="id1187036"></a>
<a name="id1242444"></a>
<a href="poly.html#fusion.functional.concepts.poly.description">Description</a>
</h5>
<p>
A type of function object with a nested metafunction <code class="computeroutput"><span class="identifier">result</span></code>.
<code class="computeroutput"><span class="identifier">result</span></code> returns the result
type of calling the function object, given the argument types.
A non-member-pointer <a href="def_callable.html" title=" Deferred
Callable Object">Deferred
Callable Object</a> type.
</p>
<a name="fusion.functional.concepts.poly.refinement_of"></a><h5>
<a name="id1187082"></a>
<a name="id1242478"></a>
<a href="poly.html#fusion.functional.concepts.poly.refinement_of">Refinement
of</a>
</h5>
<div class="itemizedlist"><ul type="disc"><li><a href="callable.html" title=" Callable Object">Callable Object</a></li></ul></div>
<div class="itemizedlist"><ul type="disc">
<li><a href="reg_callable.html" title=" Regular Callable
Object">Regular Callable
Object</a></li>
<li><a href="def_callable.html" title=" Deferred
Callable Object">Deferred Callable
Object</a></li>
</ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><code class="computeroutput"><span class="identifier">F</span></code></span></dt>
<dd>
A Polymorphic Function Object type
A possibly const-qualified Polymorphic Function Object type
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">f</span></code></span></dt>
<dd>
A Polymorphic Function Object
An object or reference to an object of type F
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code></span></dt>
<dd>
Argument types
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">a1</span>
<span class="special">...</span><span class="identifier">aN</span></code></span></dt>
<dd>
Objects or references to objects with types <code class="computeroutput"><span class="identifier">A1</span>
<span class="special">...</span><span class="identifier">AN</span></code>
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">T1</span>
<span class="special">...</span><span class="identifier">TN</span></code></span></dt>
<dd>
Arbitrary types
<code class="computeroutput"><span class="identifier">T</span></code>i is <code class="computeroutput"><span class="identifier">A</span></code>i
<code class="computeroutput"><span class="special">&amp;</span></code> if <code class="computeroutput"><span class="identifier">a</span></code>i
is an LValue, same as <code class="computeroutput"><span class="identifier">A</span></code>i,
otherwise
</dd>
<dt><span class="term"><code class="computeroutput"><span class="identifier">t1</span>
<span class="special">...</span><span class="identifier">tN</span></code></span></dt>
<dd>
Objects with types <code class="computeroutput"><span class="identifier">T1</span> <span class="special">...</span><span class="identifier">TN</span></code>
</dd>
</dl>
</div>
<a name="fusion.functional.concepts.poly.expression_requirements"></a><h5>
<a name="id1187226"></a>
<a name="id1242720"></a>
<a href="poly.html#fusion.functional.concepts.poly.expression_requirements">Expression
requirements</a>
</h5>
@ -79,24 +95,58 @@
<col>
</colgroup>
<thead><tr>
<th>Expression</th>
<th>Return Type</th>
<th>Runtime
Complexity</th>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Return Type
</p>
</th>
<th>
<p>
Runtime Complexity
</p>
</th>
</tr></thead>
<tbody><tr>
<td><code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">t1</span><span class="special">,</span> <span class="special">...</span><span class="identifier">tN</span><span class="special">)</span></code></td>
<td><code class="computeroutput"><span class="identifier">F</span><span class="special">::</span><span class="identifier">result</span><span class="special">&lt;</span><span class="identifier">T1</span><span class="special">,</span> <span class="special">...</span><span class="identifier">TN</span><span class="special">&gt;::</span><span class="identifier">type</span></code></td>
<td>Unspecified</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">f</span><span class="special">(</span><span class="identifier">a1</span><span class="special">,</span>
<span class="special">...</span><span class="identifier">aN</span><span class="special">)</span></code>
</p>
</td>
<td>
<p>
<code class="computeroutput"><span class="identifier">result_of</span><span class="special">&lt;</span>
<span class="identifier">F</span><span class="special">(</span><span class="identifier">T1</span><span class="special">,</span>
<span class="special">...</span><span class="identifier">TN</span><span class="special">)</span> <span class="special">&gt;::</span><span class="identifier">type</span></code>
</p>
</td>
<td>
<p>
Unspecified
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.functional.concepts.poly.models"></a><h5>
<a name="id1187369"></a>
<a name="id1242898"></a>
<a href="poly.html#fusion.functional.concepts.poly.models">Models</a>
</h5>
<div class="itemizedlist"><ul type="disc"><li>
<div class="itemizedlist"><ul type="disc">
<li>
function pointers
</li>
<li>
function objects of the Standard Library
</li>
<li>
all Fusion <a href="../adapters.html" title=" Adapters">functional adapters</a>
</li></ul></div>
</li>
</ul></div>
</div>
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@ -105,7 +155,7 @@
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