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<h1>AUtils Class Reference</h1><!-- doxytag: class="AUtils" -->provides some generic functions for non-standard arithmetic operations
<p>
<code>#include <<a class="el" href="AUtils_8h_source.html">AUtils.h</a>></code>
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<a href="classAUtils-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T > </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#f9c7c2703ed87e5aad75aac82c8fd8d8">max</a> (T a, T b)</td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T > </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#f220dd121df6af5964748f88893a85fe">min</a> (T a, T b)</td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T > </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#08a3db06be42144d0934630b13f8c752">div_roundup</a> (T a, T b)</td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T > </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#f7ff6bc642bf332e6cc613103853731d">bminus</a> (T a, T b)</td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T , T top> </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#02b8b162d6269df6c475b880bde08675">bplus</a> (T a, T b)</td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T > </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#5a4d99a3fa36ec765e9b65acf0e8a040">bplus</a> (T a, T b, T top)</td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T , class CTYPE > </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#b74cc65a31d6db34236e9c442462449f">modsum</a> (T *s, CTYPE n, T m)</td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class IT , class FT > </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static IT </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#b4ab4289d795888dec7ce02c61d90de1">roundup</a> (FT x)</td></tr>
<tr><td class="memTemplParams" nowrap colspan="2">template<class T > </td></tr>
<tr><td class="memTemplItemLeft" nowrap align="right" valign="top">static T </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classAUtils.html#64ee7c66bba701485aa439c897640dbb">log2_ceil</a> (T n)</td></tr>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="f7ff6bc642bf332e6cc613103853731d"></a><!-- doxytag: member="AUtils::bminus" ref="f7ff6bc642bf332e6cc613103853731d" args="(T a, T b)" -->
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template<class T > </div>
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<td class="memname">T AUtils::bminus </td>
<td>(</td>
<td class="paramtype">T </td>
<td class="paramname"> <em>a</em>, </td>
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<td class="paramtype">T </td>
<td class="paramname"> <em>b</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline, static]</code></td>
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substraction with the modification to return 0 (T()) for negative difference (needs >, -, T())
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<a class="anchor" name="5a4d99a3fa36ec765e9b65acf0e8a040"></a><!-- doxytag: member="AUtils::bplus" ref="5a4d99a3fa36ec765e9b65acf0e8a040" args="(T a, T b, T top)" -->
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template<class T > </div>
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<td class="memname">T AUtils::bplus </td>
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<td class="paramtype">T </td>
<td class="paramname"> <em>a</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">T </td>
<td class="paramname"> <em>b</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">T </td>
<td class="paramname"> <em>top</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline, static]</code></td>
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<a class="anchor" name="02b8b162d6269df6c475b880bde08675"></a><!-- doxytag: member="AUtils::bplus" ref="02b8b162d6269df6c475b880bde08675" args="(T a, T b)" -->
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template<class T , T top> </div>
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<td class="memname">T AUtils::bplus </td>
<td>(</td>
<td class="paramtype">T </td>
<td class="paramname"> <em>a</em>, </td>
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<td class="paramtype">T </td>
<td class="paramname"> <em>b</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline, static]</code></td>
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<p>
addition with the modification to return top for sums that are larger than top
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<a class="anchor" name="08a3db06be42144d0934630b13f8c752"></a><!-- doxytag: member="AUtils::div_roundup" ref="08a3db06be42144d0934630b13f8c752" args="(T a, T b)" -->
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template<class T > </div>
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<td class="memname">T AUtils::div_roundup </td>
<td>(</td>
<td class="paramtype">T </td>
<td class="paramname"> <em>a</em>, </td>
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<td class="paramtype">T </td>
<td class="paramname"> <em>b</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline, static]</code></td>
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<p>
returns a divided through b rounded up to nearest "integer" (needs =, --, +, /)
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<a class="anchor" name="64ee7c66bba701485aa439c897640dbb"></a><!-- doxytag: member="AUtils::log2_ceil" ref="64ee7c66bba701485aa439c897640dbb" args="(T n)" -->
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template<class T > </div>
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<td class="memname">T AUtils::log2_ceil </td>
<td>(</td>
<td class="paramtype">T </td>
<td class="paramname"> <em>n</em> </td>
<td> ) </td>
<td><code> [inline, static]</code></td>
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<p>
compute 2-logarithm of n (rounded up to nearest int), i.e. number of bits needed to store values from {0,...,n-1}
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<a class="anchor" name="f9c7c2703ed87e5aad75aac82c8fd8d8"></a><!-- doxytag: member="AUtils::max" ref="f9c7c2703ed87e5aad75aac82c8fd8d8" args="(T a, T b)" -->
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template<class T > </div>
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<td class="memname">T AUtils::max </td>
<td>(</td>
<td class="paramtype">T </td>
<td class="paramname"> <em>a</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">T </td>
<td class="paramname"> <em>b</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline, static]</code></td>
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return the maximum of a and b (needs >)
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<a class="anchor" name="f220dd121df6af5964748f88893a85fe"></a><!-- doxytag: member="AUtils::min" ref="f220dd121df6af5964748f88893a85fe" args="(T a, T b)" -->
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template<class T > </div>
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<td class="memname">T AUtils::min </td>
<td>(</td>
<td class="paramtype">T </td>
<td class="paramname"> <em>a</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">T </td>
<td class="paramname"> <em>b</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline, static]</code></td>
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<p>
return the minimum of a and b (needs <)
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<a class="anchor" name="b74cc65a31d6db34236e9c442462449f"></a><!-- doxytag: member="AUtils::modsum" ref="b74cc65a31d6db34236e9c442462449f" args="(T *s, CTYPE n, T m)" -->
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template<class T , class CTYPE > </div>
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<td class="memname">T AUtils::modsum </td>
<td>(</td>
<td class="paramtype">T * </td>
<td class="paramname"> <em>s</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">CTYPE </td>
<td class="paramname"> <em>n</em>, </td>
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<td class="paramtype">T </td>
<td class="paramname"> <em>m</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline, static]</code></td>
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<p>
calculate the sum s[0]+...s[n-1] modulo m (needs =, +, % for T and =, CTYPE(), <, ++ for CTYPE)
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<a class="anchor" name="b4ab4289d795888dec7ce02c61d90de1"></a><!-- doxytag: member="AUtils::roundup" ref="b4ab4289d795888dec7ce02c61d90de1" args="(FT x)" -->
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template<class IT , class FT > </div>
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<td class="memname">IT AUtils::roundup </td>
<td>(</td>
<td class="paramtype">FT </td>
<td class="paramname"> <em>x</em> </td>
<td> ) </td>
<td><code> [inline, static]</code></td>
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<p>
round up x to nearest integer
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="AUtils_8h_source.html">AUtils.h</a></ul>
</div>
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