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2020-03-16 release

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bellard
2020-09-06 19:02:03 +02:00
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commit 383e2b06c8
26 changed files with 2352 additions and 2020 deletions
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doc/jsbignum.html
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@@ -1,8 +1,7 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ -->
<!-- Created by GNU Texinfo 6.1, http://www.gnu.org/software/texinfo/ -->
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Javascript Bignum Extensions</title>
<meta name="description" content="Javascript Bignum Extensions">
@@ -10,6 +9,7 @@
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="makeinfo">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link href="#SEC_Contents" rel="contents" title="Table of Contents">
<style type="text/css">
<!--
@@ -121,7 +121,7 @@ changes were done in order to simplify the implementation.
<ul>
<li> <code>with operators from</code> is not supported. Operator overloading is always enabled.
</li><li> The dispatch is not based on a static <code>[[OperatorSet]]</code> field in all instances. Instead, a dynamic lookup the of the <code>Symbol.operatorSet</code> property is done. This property is typically added in the prototype of each object.
</li><li> The dispatch is not based on a static <code>[[OperatorSet]]</code> field in all instances. Instead, a dynamic lookup of the <code>Symbol.operatorSet</code> property is done. This property is typically added in the prototype of each object.
</li><li> <code>Operators.create(...dictionaries)</code> is used to create a new OperatorSet object. The <code>Operators</code> function is supported as an helper to be closer to the TC39 proposal.
@@ -194,7 +194,7 @@ raised if <em>a &lt; 0</em>.
<h3 class="section">4.1 Introduction</h3>
<p>This extension adds the <code>BigFloat</code> primitive type. The
<code>BigFloat</code> type represents floating point numbers are in base 2
<code>BigFloat</code> type represents floating point numbers in base 2
with the IEEE 754 semantics. A floating
point number is represented as a sign, mantissa and exponent. The
special values <code>NaN</code>, <code>+/-Infinity</code>, <code>+0</code> and <code>-0</code>
@@ -216,15 +216,13 @@ point environment is used.
<code>RNDN</code> (&ldquo;round to nearest with ties to even&rdquo;)<a name="DOCF1" href="#FOOT1"><sup>1</sup></a>. The status flags of the global environment cannot be
read<a name="DOCF2" href="#FOOT2"><sup>2</sup></a>. The precision of the global environment is
<code>BigFloatEnv.prec</code>. The number of exponent bits of the global
environment is <code>BigFloatEnv.expBits</code>. If <code>BigFloatEnv.expBits</code> is
strictly smaller than the maximum allowed number of exponent bits
(<code>BigFloatEnv.expBitsMax</code>), then the global environment subnormal
flag is set to <code>true</code>. Otherwise it is set to <code>false</code>;
environment is <code>BigFloatEnv.expBits</code>. The global environment
subnormal flag is set to <code>true</code>.
</p>
<p>For example, <code>prec = 53</code> and <code> expBits = 11</code> give exactly
the same precision as the IEEE 754 64 bit floating point. The
<p>For example, <code>prec = 53</code> and <code> expBits = 11</code> exactly give
the same precision as the IEEE 754 64 bit floating point format. The
default precision is <code>prec = 113</code> and <code> expBits = 15</code> (IEEE
754 128 bit floating point).
754 128 bit floating point format).
</p>
<p>The global floating point environment can only be modified temporarily
when calling a function (see <code>BigFloatEnv.setPrec</code>). Hence a
@@ -433,9 +431,8 @@ environment. The initial value is <code>113</code>.
</dd>
<dt><code>expBits</code></dt>
<dd><p>Getter. Return the exponent size in bits of the global floating point
environment assuming an IEEE 754 representation. If <code>expBits &lt;
expBitsMax</code>, then subnormal numbers are supported. The initial value
is <code>15</code>.
environment assuming an IEEE 754 representation. The initial value is
<code>15</code>.
</p>
</dd>
<dt><code>setPrec(f, p[, e])</code></dt>
@@ -608,7 +605,7 @@ Number value.
<p>It returns <code>0m</code> if no parameter is provided. Otherwise the first
parameter is converted to a bigdecimal by using ToString(). Hence
Number value are not converted to their exact numerical value as
Number values are not converted to their exact numerical value as
BigDecimal.
</p>
<a name="Properties-of-the-BigDecimal-object"></a>
@@ -702,12 +699,12 @@ always represented as BigFloat.
</li><li> The logical xor operator is still available with the <code>^^</code> operator.
</li><li> The integer division operator can be overloaded by modifying the corresponding operator in <code>BigInt.prototype.[[OperatorSet]]</code>.
</li><li> The integer power operator with a non zero negative exponent can be overloaded by modifying the corresponding operator in <code>BigInt.prototype.[[OperatorSet]]</code>.
</li><li> The modulo operator (<code>%</code>) returns the Euclidian remainder (always positive) instead of the truncated remainder.
</li><li> The integer division operator can be overloaded with <code>Operators.updateBigIntOperators(dictionary)</code>.
</li><li> The integer power operator with a non zero negative exponent can be overloaded with <code>Operators.updateBigIntOperators(dictionary)</code>.
</li></ul>
<div class="footnote">