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+<?xml version="1.0" encoding="ascii"?>
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+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+ <title>Crypto.Util._number_new</title>
+ <link rel="stylesheet" href="epydoc.css" type="text/css" />
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+ ><a href="http://www.pycrypto.org/">PyCrypto.org</a></th>
+ </tr></table></th>
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+</table>
+<table width="100%" cellpadding="0" cellspacing="0">
+ <tr valign="top">
+ <td width="100%">
+ <span class="breadcrumbs">
+ <a href="Crypto-module.html">Package&nbsp;Crypto</a> ::
+ <a href="Crypto.Util-module.html">Package&nbsp;Util</a> ::
+ Module&nbsp;_number_new
+ </span>
+ </td>
+ <td>
+ <table cellpadding="0" cellspacing="0">
+ <!-- hide/show private -->
+ <tr><td align="right"><span class="options"
+ >[<a href="frames.html" target="_top">frames</a
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+ target="_top">no&nbsp;frames</a>]</span></td></tr>
+ </table>
+ </td>
+ </tr>
+</table>
+<!-- ==================== MODULE DESCRIPTION ==================== -->
+<h1 class="epydoc">Module _number_new</h1><p class="nomargin-top"></p>
+<!-- ==================== FUNCTIONS ==================== -->
+<a name="section-Functions"></a>
+<table class="summary" border="1" cellpadding="3"
+ cellspacing="0" width="100%" bgcolor="white">
+<tr bgcolor="#70b0f0" class="table-header">
+ <td align="left" colspan="2" class="table-header">
+ <span class="table-header">Functions</span></td>
+</tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <table width="100%" cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td><span class="summary-sig"><a href="Crypto.Util._number_new-module.html#ceil_shift" class="summary-sig-name">ceil_shift</a>(<span class="summary-sig-arg">n</span>,
+ <span class="summary-sig-arg">b</span>)</span><br />
+ Return ceil(n / 2**b) without performing any floating-point or division operations.</td>
+ <td align="right" valign="top">
+
+
+ </td>
+ </tr>
+ </table>
+
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <table width="100%" cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td><span class="summary-sig"><a name="ceil_div"></a><span class="summary-sig-name">ceil_div</span>(<span class="summary-sig-arg">a</span>,
+ <span class="summary-sig-arg">b</span>)</span><br />
+ Return ceil(a / b) without performing any floating-point operations.</td>
+ <td align="right" valign="top">
+
+
+ </td>
+ </tr>
+ </table>
+
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <table width="100%" cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td><span class="summary-sig"><a name="floor_div"></a><span class="summary-sig-name">floor_div</span>(<span class="summary-sig-arg">a</span>,
+ <span class="summary-sig-arg">b</span>)</span></td>
+ <td align="right" valign="top">
+
+
+ </td>
+ </tr>
+ </table>
+
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <table width="100%" cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td><span class="summary-sig"><a href="Crypto.Util._number_new-module.html#exact_log2" class="summary-sig-name">exact_log2</a>(<span class="summary-sig-arg">num</span>)</span><br />
+ Find and return an integer i &gt;= 0 such that num == 2**i.</td>
+ <td align="right" valign="top">
+
+
+ </td>
+ </tr>
+ </table>
+
+ </td>
+ </tr>
+<tr>
+ <td width="15%" align="right" valign="top" class="summary">
+ <span class="summary-type">&nbsp;</span>
+ </td><td class="summary">
+ <table width="100%" cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td><span class="summary-sig"><a href="Crypto.Util._number_new-module.html#exact_div" class="summary-sig-name">exact_div</a>(<span class="summary-sig-arg">p</span>,
+ <span class="summary-sig-arg">d</span>,
+ <span class="summary-sig-arg">allow_divzero</span>=<span class="summary-sig-default">False</span>)</span><br />
+ Find and return an integer n such that p == n * d</td>
+ <td align="right" valign="top">
+
+
+ </td>
+ </tr>
+ </table>
+
+ </td>
+ </tr>
+</table>
+<!-- ==================== FUNCTION DETAILS ==================== -->
+<a name="section-FunctionDetails"></a>
+<table class="details" border="1" cellpadding="3"
+ cellspacing="0" width="100%" bgcolor="white">
+<tr bgcolor="#70b0f0" class="table-header">
+ <td align="left" colspan="2" class="table-header">
+ <span class="table-header">Function Details</span></td>
+</tr>
+</table>
+<a name="ceil_shift"></a>
+<div>
+<table class="details" border="1" cellpadding="3"
+ cellspacing="0" width="100%" bgcolor="white">
+<tr><td>
+ <table width="100%" cellpadding="0" cellspacing="0" border="0">
+ <tr valign="top"><td>
+ <h3 class="epydoc"><span class="sig"><span class="sig-name">ceil_shift</span>(<span class="sig-arg">n</span>,
+ <span class="sig-arg">b</span>)</span>
+ </h3>
+ </td><td align="right" valign="top"
+ >&nbsp;
+ </td>
+ </tr></table>
+
+ <p>Return ceil(n / 2**b) without performing any floating-point or division operations.</p>
+<p>This is done by right-shifting n by b bits and incrementing the result by 1
+if any '1' bits were shifted out.</p>
+ <dl class="fields">
+ </dl>
+</td></tr></table>
+</div>
+<a name="exact_log2"></a>
+<div>
+<table class="details" border="1" cellpadding="3"
+ cellspacing="0" width="100%" bgcolor="white">
+<tr><td>
+ <table width="100%" cellpadding="0" cellspacing="0" border="0">
+ <tr valign="top"><td>
+ <h3 class="epydoc"><span class="sig"><span class="sig-name">exact_log2</span>(<span class="sig-arg">num</span>)</span>
+ </h3>
+ </td><td align="right" valign="top"
+ >&nbsp;
+ </td>
+ </tr></table>
+
+ <p>Find and return an integer i &gt;= 0 such that num == 2**i.</p>
+<p>If no such integer exists, this function raises ValueError.</p>
+ <dl class="fields">
+ </dl>
+</td></tr></table>
+</div>
+<a name="exact_div"></a>
+<div>
+<table class="details" border="1" cellpadding="3"
+ cellspacing="0" width="100%" bgcolor="white">
+<tr><td>
+ <table width="100%" cellpadding="0" cellspacing="0" border="0">
+ <tr valign="top"><td>
+ <h3 class="epydoc"><span class="sig"><span class="sig-name">exact_div</span>(<span class="sig-arg">p</span>,
+ <span class="sig-arg">d</span>,
+ <span class="sig-arg">allow_divzero</span>=<span class="sig-default">False</span>)</span>
+ </h3>
+ </td><td align="right" valign="top"
+ >&nbsp;
+ </td>
+ </tr></table>
+
+ <p>Find and return an integer n such that p == n * d</p>
+<p>If no such integer exists, this function raises ValueError.</p>
+<p>Both operands must be integers.</p>
+<p>If the second operand is zero, this function will raise ZeroDivisionError
+unless allow_divzero is true (default: False).</p>
+ <dl class="fields">
+ </dl>
+</td></tr></table>
+</div>
+<br />
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