mirror of
https://github.com/c-cube/ocaml-containers.git
synced 2025-12-06 03:05:28 -05:00
2 lines
No EOL
17 KiB
HTML
2 lines
No EOL
17 KiB
HTML
<!DOCTYPE html>
|
||
<html xmlns="http://www.w3.org/1999/xhtml"><head><title>CCFloat (containers.CCFloat)</title><link rel="stylesheet" href="../../odoc.css"/><meta charset="utf-8"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body><div class="content"><header><nav><a href="../index.html">Up</a> – <a href="../index.html">containers</a> » CCFloat</nav><h1>Module <code>CCFloat</code></h1><h2 id="basic-operations-on-floating-point-numbers"><a href="#basic-operations-on-floating-point-numbers" class="anchor"></a>Basic operations on floating-point numbers</h2><dl><dt>since</dt><dd>0.6.1</dd></dl><nav class="toc"><ul><li><a href="#infix-operators">Infix Operators</a></li></ul></nav></header><dl><dt class="spec type" id="type-t"><a href="#type-t" class="anchor"></a><code><span class="keyword">type</span> t</code><code> = float</code></dt><dt class="spec type" id="type-fpclass"><a href="#type-fpclass" class="anchor"></a><code><span class="keyword">type</span> fpclass</code><code> = <a href="../CCShims_/index.html#module-Stdlib">CCShims_.Stdlib</a>.fpclass</code><code> = </code><table class="variant"><tr id="type-fpclass.FP_normal" class="anchored"><td class="def constructor"><a href="#type-fpclass.FP_normal" class="anchor"></a><code>| </code><code><span class="constructor">FP_normal</span></code></td></tr><tr id="type-fpclass.FP_subnormal" class="anchored"><td class="def constructor"><a href="#type-fpclass.FP_subnormal" class="anchor"></a><code>| </code><code><span class="constructor">FP_subnormal</span></code></td></tr><tr id="type-fpclass.FP_zero" class="anchored"><td class="def constructor"><a href="#type-fpclass.FP_zero" class="anchor"></a><code>| </code><code><span class="constructor">FP_zero</span></code></td></tr><tr id="type-fpclass.FP_infinite" class="anchored"><td class="def constructor"><a href="#type-fpclass.FP_infinite" class="anchor"></a><code>| </code><code><span class="constructor">FP_infinite</span></code></td></tr><tr id="type-fpclass.FP_nan" class="anchored"><td class="def constructor"><a href="#type-fpclass.FP_nan" class="anchor"></a><code>| </code><code><span class="constructor">FP_nan</span></code></td></tr></table></dt></dl><dl><dt class="spec value" id="val-nan"><a href="#val-nan" class="anchor"></a><code><span class="keyword">val</span> nan : <a href="index.html#type-t">t</a></code></dt><dd><p>Equal to <span class="xref-unresolved" title="unresolved reference to "Stdlib.nan""><code>Stdlib</code>.nan</span>.</p></dd></dl><dl><dt class="spec value" id="val-max_value"><a href="#val-max_value" class="anchor"></a><code><span class="keyword">val</span> max_value : <a href="index.html#type-t">t</a></code></dt><dd><p>Positive infinity. Equal to <span class="xref-unresolved" title="unresolved reference to "Stdlib.infinity""><code>Stdlib</code>.infinity</span>.</p></dd></dl><dl><dt class="spec value" id="val-min_value"><a href="#val-min_value" class="anchor"></a><code><span class="keyword">val</span> min_value : <a href="index.html#type-t">t</a></code></dt><dd><p>Negative infinity. Equal to <span class="xref-unresolved" title="unresolved reference to "Stdlib.neg_infinity""><code>Stdlib</code>.neg_infinity</span>.</p></dd></dl><dl><dt class="spec value" id="val-max_finite_value"><a href="#val-max_finite_value" class="anchor"></a><code><span class="keyword">val</span> max_finite_value : <a href="index.html#type-t">t</a></code></dt><dd><p>Equal to <span class="xref-unresolved" title="unresolved reference to "Stdlib.max_float""><code>Stdlib</code>.max_float</span>.</p></dd></dl><dl><dt class="spec value" id="val-epsilon"><a href="#val-epsilon" class="anchor"></a><code><span class="keyword">val</span> epsilon : <a href="index.html#type-t">t</a></code></dt><dd><p>The smallest positive float x such that <code>1.0 +. x <> 1.0</code>. Equal to <span class="xref-unresolved" title="unresolved reference to "Stdlib.epsilon_float""><code>Stdlib</code>.epsilon_float</span>.</p></dd></dl><dl><dt class="spec value" id="val-is_nan"><a href="#val-is_nan" class="anchor"></a><code><span class="keyword">val</span> is_nan : <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dd><p><code>is_nan f</code> returns <code>true</code> if f is NaN, <code>false</code> otherwise.</p></dd></dl><dl><dt class="spec value" id="val-add"><a href="#val-add" class="anchor"></a><code><span class="keyword">val</span> add : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Equal to <code>(+.)</code>.</p></dd></dl><dl><dt class="spec value" id="val-sub"><a href="#val-sub" class="anchor"></a><code><span class="keyword">val</span> sub : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Equal to <code>(-.)</code>.</p></dd></dl><dl><dt class="spec value" id="val-neg"><a href="#val-neg" class="anchor"></a><code><span class="keyword">val</span> neg : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Equal to <code>(~-.)</code>.</p></dd></dl><dl><dt class="spec value" id="val-abs"><a href="#val-abs" class="anchor"></a><code><span class="keyword">val</span> abs : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>The absolute value of a floating-point number. Equal to <span class="xref-unresolved" title="unresolved reference to "Stdlib.abs_float""><code>Stdlib</code>.abs_float</span>.</p></dd></dl><dl><dt class="spec value" id="val-scale"><a href="#val-scale" class="anchor"></a><code><span class="keyword">val</span> scale : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Equal to <code>( *. )</code>.</p></dd></dl><dl><dt class="spec value" id="val-min"><a href="#val-min" class="anchor"></a><code><span class="keyword">val</span> min : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-max"><a href="#val-max" class="anchor"></a><code><span class="keyword">val</span> max : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-equal"><a href="#val-equal" class="anchor"></a><code><span class="keyword">val</span> equal : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dt class="spec value" id="val-compare"><a href="#val-compare" class="anchor"></a><code><span class="keyword">val</span> compare : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> int</code></dt></dl><dl><dt class="spec type" id="type-printer"><a href="#type-printer" class="anchor"></a><code><span class="keyword">type</span> 'a printer</code><code> = Stdlib.Format.formatter <span>-></span> <span class="type-var">'a</span> <span>-></span> unit</code></dt><dt class="spec type" id="type-random_gen"><a href="#type-random_gen" class="anchor"></a><code><span class="keyword">type</span> 'a random_gen</code><code> = Stdlib.Random.State.t <span>-></span> <span class="type-var">'a</span></code></dt></dl><dl><dt class="spec value" id="val-pp"><a href="#val-pp" class="anchor"></a><code><span class="keyword">val</span> pp : <a href="index.html#type-t">t</a> <a href="index.html#type-printer">printer</a></code></dt><dt class="spec value" id="val-hash"><a href="#val-hash" class="anchor"></a><code><span class="keyword">val</span> hash : <a href="index.html#type-t">t</a> <span>-></span> int</code></dt><dt class="spec value" id="val-random"><a href="#val-random" class="anchor"></a><code><span class="keyword">val</span> random : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <a href="index.html#type-random_gen">random_gen</a></code></dt><dt class="spec value" id="val-random_small"><a href="#val-random_small" class="anchor"></a><code><span class="keyword">val</span> random_small : <a href="index.html#type-t">t</a> <a href="index.html#type-random_gen">random_gen</a></code></dt><dt class="spec value" id="val-random_range"><a href="#val-random_range" class="anchor"></a><code><span class="keyword">val</span> random_range : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <a href="index.html#type-random_gen">random_gen</a></code></dt><dt class="spec value" id="val-fsign"><a href="#val-fsign" class="anchor"></a><code><span class="keyword">val</span> fsign : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p><code>fsign x</code> is one of <code>-1., -0., +0., +1.</code>, or <code>nan</code> if <code>x</code> is NaN.</p><dl><dt>since</dt><dd>0.7</dd></dl></dd></dl><dl><dt class="spec value" id="val-round"><a href="#val-round" class="anchor"></a><code><span class="keyword">val</span> round : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p><code>round f</code> returns the closest integer value, either above or below.</p><dl><dt>since</dt><dd>0.20</dd></dl></dd></dl><dl><dt class="spec exception" id="exception-TrapNaN"><a href="#exception-TrapNaN" class="anchor"></a><code><span class="keyword">exception</span> </code><code><span class="exception">TrapNaN</span> <span class="keyword">of</span> string</code></dt></dl><dl><dt class="spec value" id="val-sign_exn"><a href="#val-sign_exn" class="anchor"></a><code><span class="keyword">val</span> sign_exn : <a href="index.html#type-t">t</a> <span>-></span> int</code></dt><dd><p><code>sign_exn x</code> will return the sign of <code>x</code> as <code>1, 0</code> or <code>-1</code>, or raise an exception <code>TrapNaN</code> if <code>x</code> is NaN. Note that infinities have defined signs in OCaml.</p><dl><dt>since</dt><dd>0.7</dd></dl></dd></dl><dl><dt class="spec value" id="val-to_int"><a href="#val-to_int" class="anchor"></a><code><span class="keyword">val</span> to_int : <a href="index.html#type-t">t</a> <span>-></span> int</code></dt><dd><p>Alias to <code>int_of_float</code>. Unspecified if outside of the range of integers.</p></dd></dl><dl><dt class="spec value" id="val-of_int"><a href="#val-of_int" class="anchor"></a><code><span class="keyword">val</span> of_int : int <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Alias to <code>float_of_int</code>.</p></dd></dl><dl><dt class="spec value" id="val-to_string"><a href="#val-to_string" class="anchor"></a><code><span class="keyword">val</span> to_string : <a href="index.html#type-t">t</a> <span>-></span> string</code></dt><dt class="spec value" id="val-of_string_exn"><a href="#val-of_string_exn" class="anchor"></a><code><span class="keyword">val</span> of_string_exn : string <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Alias to <code>float_of_string</code>.</p><dl><dt>raises Failure</dt><dd><p>in case of failure.</p></dd></dl><dl><dt>since</dt><dd>1.2</dd></dl></dd></dl><dl><dt class="spec value" id="val-of_string"><a href="#val-of_string" class="anchor"></a><code><span class="keyword">val</span> of_string : string <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Alias to <code>float_of_string</code>.</p><dl><dt>deprecated</dt><dd><p>since 1.2, use <a href="index.html#val-of_string_exn"><code>of_string_exn</code></a> instead.</p></dd></dl><dl><dt>raises Failure</dt><dd><p>in case of failure.</p></dd></dl></dd></dl><dl><dt class="spec value" id="val-equal_precision"><a href="#val-equal_precision" class="anchor"></a><code><span class="keyword">val</span> equal_precision : epsilon:<a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dd><p>Equality with allowed error up to a non negative epsilon value.</p></dd></dl><dl><dt class="spec value" id="val-classify"><a href="#val-classify" class="anchor"></a><code><span class="keyword">val</span> classify : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-fpclass">fpclass</a></code></dt><dd><p>Return the class of the given floating-point number: normal, subnormal, zero, infinite or nan (not a number).</p></dd></dl><section><header><h3 id="infix-operators"><a href="#infix-operators" class="anchor"></a>Infix Operators</h3><dl><dt>since</dt><dd>0.17</dd></dl></header><div class="spec module" id="module-Infix"><a href="#module-Infix" class="anchor"></a><code><span class="keyword">module</span> <a href="Infix/index.html">Infix</a> : <span class="keyword">sig</span> ... <span class="keyword">end</span></code></div><div><div class="spec include"><div class="doc"><details open="open"><summary><span class="def"><code><span class="keyword">include</span> <span class="keyword">module</span> <span class="keyword">type</span> <span class="keyword">of</span> <a href="index.html#module-Infix">Infix</a></code></span></summary><dl><dt class="spec value" id="val-(=)"><a href="#val-(=)" class="anchor"></a><code><span class="keyword">val</span> (=) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dd><dl><dt>since</dt><dd>0.17</dd></dl></dd></dl><dl><dt class="spec value" id="val-(<>)"><a href="#val-(<>)" class="anchor"></a><code><span class="keyword">val</span> (<>) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dd><dl><dt>since</dt><dd>0.17</dd></dl></dd></dl><dl><dt class="spec value" id="val-(<)"><a href="#val-(<)" class="anchor"></a><code><span class="keyword">val</span> (<) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dd><dl><dt>since</dt><dd>0.17</dd></dl></dd></dl><dl><dt class="spec value" id="val-(>)"><a href="#val-(>)" class="anchor"></a><code><span class="keyword">val</span> (>) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dd><dl><dt>since</dt><dd>0.17</dd></dl></dd></dl><dl><dt class="spec value" id="val-(<=)"><a href="#val-(<=)" class="anchor"></a><code><span class="keyword">val</span> (<=) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dd><dl><dt>since</dt><dd>0.17</dd></dl></dd></dl><dl><dt class="spec value" id="val-(>=)"><a href="#val-(>=)" class="anchor"></a><code><span class="keyword">val</span> (>=) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> bool</code></dt><dd><dl><dt>since</dt><dd>0.17</dd></dl></dd></dl><dl><dt class="spec value" id="val-(+)"><a href="#val-(+)" class="anchor"></a><code><span class="keyword">val</span> (+) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Addition.</p><dl><dt>since</dt><dd>2.1</dd></dl></dd></dl><dl><dt class="spec value" id="val-(-)"><a href="#val-(-)" class="anchor"></a><code><span class="keyword">val</span> (-) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Subtraction.</p><dl><dt>since</dt><dd>2.1</dd></dl></dd></dl><dl><dt class="spec value" id="val-(~-)"><a href="#val-(~-)" class="anchor"></a><code><span class="keyword">val</span> (~-) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Unary negation.</p><dl><dt>since</dt><dd>2.1</dd></dl></dd></dl><dl><dt class="spec value" id="val-(*)"><a href="#val-(*)" class="anchor"></a><code><span class="keyword">val</span> (*) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Multiplication.</p><dl><dt>since</dt><dd>2.1</dd></dl></dd></dl><dl><dt class="spec value" id="val-(/)"><a href="#val-(/)" class="anchor"></a><code><span class="keyword">val</span> (/) : <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a> <span>-></span> <a href="index.html#type-t">t</a></code></dt><dd><p>Division.</p><dl><dt>since</dt><dd>2.1</dd></dl></dd></dl></details></div></div></div></section></div></body></html> |