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| <div class="section" lang="en"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="boost_icl.function_reference.interval_construction"></a><a class="link" href="interval_construction.html" title="Interval Construction">Interval |
| Construction</a> |
| </h3></div></div></div> |
| <div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| <col> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| T |
| </p> |
| </th> |
| <th> |
| <p> |
| discrete<br> _interval |
| </p> |
| </th> |
| <th> |
| <p> |
| continuous<br> _interval |
| </p> |
| </th> |
| <th> |
| <p> |
| right_open<br> _interval |
| </p> |
| </th> |
| <th> |
| <p> |
| left_open<br> _interval |
| </p> |
| </th> |
| <th> |
| <p> |
| closed<br> _interval |
| </p> |
| </th> |
| <th> |
| <p> |
| open<br> _interval |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| Interval bounds |
| </p> |
| </td> |
| <td> |
| <p> |
| dynamic |
| </p> |
| </td> |
| <td> |
| <p> |
| dynamic |
| </p> |
| </td> |
| <td> |
| <p> |
| static |
| </p> |
| </td> |
| <td> |
| <p> |
| static |
| </p> |
| </td> |
| <td> |
| <p> |
| static |
| </p> |
| </td> |
| <td> |
| <p> |
| static |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| Form |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| asymmetric |
| </p> |
| </td> |
| <td> |
| <p> |
| asymmetric |
| </p> |
| </td> |
| <td> |
| <p> |
| symmetric |
| </p> |
| </td> |
| <td> |
| <p> |
| symmetric |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <span class="emphasis"><em><span class="bold"><strong>Construct</strong></span></em></span> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">singleton</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> |
| <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| |
| </p> |
| <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> |
| <span class="identifier">interval_bounds</span> <span class="special">)</span> |
| </pre> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">hull</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> |
| <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">span</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> |
| <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span> |
| <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> |
| <span class="identifier">P</span><span class="special">&)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span> |
| <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> |
| <span class="identifier">P</span><span class="special">&)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span> |
| <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> |
| <span class="identifier">P</span><span class="special">&)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span> |
| <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> |
| <span class="identifier">P</span><span class="special">&)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p> |
| The table above shows the availability of functions, that allow the construction |
| of intervals. All interval constructin functins are of <span class="emphasis"><em><span class="bold"><strong>constant time and space complexity</strong></span></em></span>. |
| </p> |
| <div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| <span class="emphasis"><em><span class="bold"><strong>Construct</strong></span></em></span> |
| </p> |
| </th> |
| <th> |
| <p> |
| Description |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">singleton</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> |
| <span class="identifier">value</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Constructs an interval that contains exactly one element <code class="computeroutput"><span class="identifier">value</span></code>. For all interval types of |
| the icl sigletons can be constructed for <span class="emphasis"><em>discrete</em></span> |
| domain types. For continuous domain types, only <code class="computeroutput"><a class="link" href="../../boost/icl/continuous_interval.html" title="Class template continuous_interval">continuous_interval</a></code> |
| is capable to construct a singleton. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> |
| <span class="identifier">lower</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">upper</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| Contructs an interval with lower bound <code class="computeroutput"><span class="identifier">lower</span></code> |
| and upper bound <code class="computeroutput"><span class="identifier">upper</span></code> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| |
| </p> |
| <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">lower</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">upper</span><span class="special">,</span> |
| <span class="identifier">interval_bounds</span> <span class="identifier">bounds</span> |
| <span class="special">=</span> <span class="identifier">interval_bounds</span><span class="special">::</span><span class="identifier">right_open</span><span class="special">())</span> |
| </pre> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| For dynamically bounded intervals this function constructs an interval |
| with interval bounds specified by the third parameter. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">hull</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> |
| <span class="identifier">x1</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">x2</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">hull</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">)</span></code> |
| constructs the smallest interval that contains both <code class="computeroutput"><span class="identifier">x1</span></code> and <code class="computeroutput"><span class="identifier">x2</span></code>. |
| <code class="computeroutput"><span class="identifier">x2</span></code> may be smaller |
| than <code class="computeroutput"><span class="identifier">x1</span></code>. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">span</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> |
| <span class="identifier">x1</span><span class="special">,</span> |
| <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">x2</span><span class="special">)</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">span</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">)</span></code> |
| constructs the interval <code class="computeroutput"><span class="identifier">construct</span><span class="special">(</span><span class="identifier">min</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">),</span> <span class="identifier">max</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">))</span></code>. Note the differences between |
| <code class="computeroutput"><span class="identifier">span</span></code>, <code class="computeroutput"><span class="identifier">hull</span></code> and <code class="computeroutput"><span class="identifier">construct</span></code>: |
| |
| </p> |
| <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">span</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">)</span> <span class="comment">// does NOT contain 2 |
| </span><span class="identifier">hull</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[</span><span class="number">1</span><span class="special">,</span><span class="number">3</span><span class="special">)</span> <span class="comment">// contains 2 |
| </span><span class="identifier">construct</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[)</span> <span class="comment">// is empty |
| </span></pre> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| |
| </p> |
| <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> |
| <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> |
| <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> |
| <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> |
| </pre> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| For dynamically bounded intervals there are for static functions |
| to construct intervals with the four interval bound types: |
| </p> |
| <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">discrete_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">discrete_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span> |
| <span class="identifier">continuous_interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">></span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">continuous_interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> |
| </pre> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <span class="emphasis"><em><span class="bold"><strong>Using the interval default</strong></span></em></span> |
| </p> |
| </td> |
| <td> |
| <p> |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <code class="computeroutput"><span class="identifier">interval</span><span class="special"><</span><span class="identifier">P</span><span class="special">>::</span><span class="identifier">type</span></code> |
| </p> |
| </td> |
| <td> |
| <p> |
| There is a library default, for all interval containers of the <span class="bold"><strong>icl</strong></span>. The intension of the library default |
| is to minimize the need for parameter specification, when working |
| with <span class="bold"><strong>icl</strong></span> class templates. We can |
| get the library default interval type as <code class="computeroutput"><span class="identifier">interval</span><span class="special"><</span><span class="identifier">P</span><span class="special">>::</span><span class="identifier">type</span></code>. |
| The library default uses <span class="emphasis"><em><span class="bold"><strong>dynamically |
| bounded intervals</strong></span></em></span>. You can switch to <span class="emphasis"><em><span class="bold"><strong>statically bounded intervals</strong></span></em></span> by |
| <code class="computeroutput"><span class="preprocessor">#define</span> <span class="identifier">BOOST_ICL_USE_STATIC_BOUNDED_INTERVALS</span></code> |
| prior to icl includes. |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| |
| </p> |
| <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> |
| <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> |
| <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> |
| <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> |
| </pre> |
| <p> |
| </p> |
| </td> |
| <td> |
| <p> |
| For template struct <code class="computeroutput"><span class="identifier">interval</span></code> |
| that always uses the library default the static functions for the |
| four interval bound types are also available. |
| </p> |
| <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span> |
| <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> |
| </pre> |
| <p> |
| This works with the statically bounded intervals as well, with the |
| restriction that for continuous domain types the matching function |
| has to be used: |
| </p> |
| <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_ICL_USE_STATIC_BOUNDED_INTERVALS</span> |
| <span class="special">.</span> <span class="special">.</span> <span class="special">.</span> |
| <span class="comment">// library default is the statically bounded right_open_interval |
| </span><span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span> <span class="comment">//==[0,43) //ok, bounds are shifted |
| </span><span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> <span class="comment">//ok. right_open matches |
| </span><span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv3</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> <span class="comment">//will NOT compile |
| </span></pre> |
| <p> |
| See also examples <a class="link" href="../examples/dynamic_interval.html" title="Dynamic interval">Dynamic |
| intervals</a> and <a class="link" href="../examples/static_interval.html" title="Static interval">Static |
| intervals</a> |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p> |
| <span class="emphasis"><em><span class="bold"><strong>See also . . .</strong></span></em></span> |
| </p> |
| <div class="informaltable"><table class="table"> |
| <colgroup><col></colgroup> |
| <thead><tr></tr></thead> |
| <tbody> |
| <tr><td> |
| <p> |
| <a class="link" href="../examples/dynamic_interval.html" title="Dynamic interval"><span class="emphasis"><em><span class="bold"><strong>Example: Dynamically bounded intervals and the library |
| default</strong></span></em></span></a> |
| </p> |
| </td></tr> |
| <tr><td> |
| <p> |
| <a class="link" href="../examples/static_interval.html" title="Static interval"><span class="emphasis"><em><span class="bold"><strong>Example: Statically bounded intervals, changing the library |
| default</strong></span></em></span></a> |
| </p> |
| </td></tr> |
| </tbody> |
| </table></div> |
| <p> |
| <span class="emphasis"><em><span class="bold"><strong>Back to section . . .</strong></span></em></span> |
| </p> |
| <div class="informaltable"><table class="table"> |
| <colgroup><col></colgroup> |
| <thead><tr></tr></thead> |
| <tbody> |
| <tr><td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#additional_interval_functions"><span class="emphasis"><em><span class="bold"><strong>Additional interval functions</strong></span></em></span></a> |
| </p> |
| </td></tr> |
| <tr><td> |
| <p> |
| <a class="link" href="../interface/function_synopsis.html#function_synopsis_table"><span class="emphasis"><em><span class="bold"><strong>Function |
| Synopsis</strong></span></em></span></a> |
| </p> |
| </td></tr> |
| <tr><td> |
| <p> |
| <a class="link" href="../interface.html" title="Interface"><span class="emphasis"><em><span class="bold"><strong>Interface</strong></span></em></span></a> |
| </p> |
| </td></tr> |
| </tbody> |
| </table></div> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2007 -2010 Joachim Faulhaber<br>Copyright © 1999 -2006 Cortex Software GmbH<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
| </p> |
| </div></td> |
| </tr></table> |
| <hr> |
| <div class="spirit-nav"> |
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