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@ -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 < 0</em>.
<h3class="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> (“round to nearest with ties to even”)<aname="DOCF1"href="#FOOT1"><sup>1</sup></a>. The status flags of the global environment cannot be
read<aname="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 <
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>
<aname="Properties-of-the-BigDecimal-object"></a>
@ -702,11 +699,11 @@ 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 modulo operator (<code>%</code>) returns the Euclidian remainder (always positive) instead of the truncated remainder.
</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 integer division operator can be overloaded with <code>Operators.updateBigIntOperators(dictionary)</code>.
</li><li> The modulo operator (<code>%</code>) returns the Euclidian remainder (always positive) instead of the truncated remainder.
</li><li> The integer power operator with a non zero negative exponent can be overloaded with <code>Operators.updateBigIntOperators(dictionary)</code>.
@ -57,7 +57,7 @@ More precisely, the following modifications were made:
@item @code{with operators from} is not supported. Operator overloading is always enabled.
@item The dispatch is not based on a static @code{[[OperatorSet]]} field in all instances. Instead, a dynamic lookup the of the @code{Symbol.operatorSet} property is done. This property is typically added in the prototype of each object.
@item The dispatch is not based on a static @code{[[OperatorSet]]} field in all instances. Instead, a dynamic lookup of the @code{Symbol.operatorSet} property is done. This property is typically added in the prototype of each object.
@item @code{Operators.create(...dictionaries)} is used to create a new OperatorSet object. The @code{Operators} function is supported as an helper to be closer to the TC39 proposal.
@ -119,7 +119,7 @@ Return the number of trailing zeros in the two's complement binary representatio
@section Introduction
This extension adds the @code{BigFloat} primitive type. The
@code{BigFloat} type represents floating point numbers are in base 2
@code{BigFloat} 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{+/-Infinity}, @code{+0} and @code{-0}
@ -143,15 +143,13 @@ explicit.}. The status flags of the global environment cannot be
read@footnote{The rationale is to avoid side effects for the built-in
operators.}. The precision of the global environment is
@code{BigFloatEnv.prec}. The number of exponent bits of the global
environment is @code{BigFloatEnv.expBits}. If @code{BigFloatEnv.expBits} is
strictly smaller than the maximum allowed number of exponent bits
(@code{BigFloatEnv.expBitsMax}), then the global environment subnormal
flag is set to @code{true}. Otherwise it is set to @code{false};
environment is @code{BigFloatEnv.expBits}. The global environment
subnormal flag is set to @code{true}.
For example, @code{prec = 53} and @code{ expBits = 11} give exactly
the same precision as the IEEE 754 64 bit floating point. The
For example, @code{prec = 53} and @code{ expBits = 11} exactly give
the same precision as the IEEE 754 64 bit floating point format. The
default precision is @code{prec = 113} and @code{ expBits = 15} (IEEE
754 128 bit floating point).
754 128 bit floating point format).
The global floating point environment can only be modified temporarily
when calling a function (see @code{BigFloatEnv.setPrec}). Hence a
@ -345,9 +343,8 @@ environment. The initial value is @code{113}.
@item expBits
Getter. Return the exponent size in bits of the global floating point
environment assuming an IEEE 754 representation. If @code{expBits <
expBitsMax}, then subnormal numbers are supported. The initial value
is @code{15}.
environment assuming an IEEE 754 representation. The initial value is
@code{15}.
@item setPrec(f, p[, e])
Set the precision of the global floating point environment to @code{p}
@ -492,7 +489,7 @@ BigDecimal literals are decimal floating point numbers with a trailing
It returns @code{0m} 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.
@subsection Properties of the @code{BigDecimal} object
@ -581,11 +578,11 @@ The following changes are made to the Javascript semantics:
@item The logical xor operator is still available with the @code{^^} operator.
@item The integer division operator can be overloaded by modifying the corresponding operator in @code{BigInt.prototype.[[OperatorSet]]}.
@item The modulo operator (@code{%}) returns the Euclidian remainder (always positive) instead of the truncated remainder.
@item The integer power operator with a non zero negative exponent can be overloaded by modifying the corresponding operator in @code{BigInt.prototype.[[OperatorSet]]}.
@item The integer division operator can be overloaded with @code{Operators.updateBigIntOperators(dictionary)}.
@item The modulo operator (@code{%}) returns the Euclidian remainder (always positive) instead of the truncated remainder.
@item The integer power operator with a non zero negative exponent can be overloaded with @code{Operators.updateBigIntOperators(dictionary)}.
bellard
2 years ago