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<h1>Module <a href="type_Targetint.html">Targetint</a></h1>
<pre><span id="MODULETargetint"><span class="keyword">module</span> Targetint</span>: <code class="code"><span class="keyword">sig</span></code> <a href="Targetint.html">..</a> <code class="code"><span class="keyword">end</span></code></pre><div class="info module top">
<div class="info-desc">
<p>Target processor-native integers.</p>
<p>This module provides operations on the type of
signed 32-bit integers (on 32-bit target platforms) or
signed 64-bit integers (on 64-bit target platforms).
This integer type has exactly the same width as that of a
pointer type in the C compiler. All arithmetic operations over
are taken modulo 2<sup class="superscript">32</sup> or 2<sup class="superscript">64</sup> depending
on the word size of the target architecture.</p>
<p><b>Warning:</b> this module is unstable and part of
<a href="Compiler_libs.html">compiler-libs</a>.</p>
</div>
</div>
<hr width="100%">
<pre><span id="TYPEt"><span class="keyword">type</span> <code class="type"></code>t</span> </pre>
<div class="info ">
<div class="info-desc">
<p>The type of target integers.</p>
</div>
</div>
<pre><span id="VALzero"><span class="keyword">val</span> zero</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>The target integer 0.</p>
</div>
</div>
<pre><span id="VALone"><span class="keyword">val</span> one</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>The target integer 1.</p>
</div>
</div>
<pre><span id="VALminus_one"><span class="keyword">val</span> minus_one</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>The target integer -1.</p>
</div>
</div>
<pre><span id="VALneg"><span class="keyword">val</span> neg</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Unary negation.</p>
</div>
</div>
<pre><span id="VALadd"><span class="keyword">val</span> add</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Addition.</p>
</div>
</div>
<pre><span id="VALsub"><span class="keyword">val</span> sub</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Subtraction.</p>
</div>
</div>
<pre><span id="VALmul"><span class="keyword">val</span> mul</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Multiplication.</p>
</div>
</div>
<pre><span id="VALdiv"><span class="keyword">val</span> div</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Integer division. Raise <code class="code"><span class="constructor">Division_by_zero</span></code> if the second
argument is zero. This division rounds the real quotient of
its arguments towards zero, as specified for <code class="code"><span class="constructor">Stdlib</span>.(/)</code>.</p>
</div>
</div>
<pre><span id="VALunsigned_div"><span class="keyword">val</span> unsigned_div</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Same as <a href="Targetint.html#VALdiv"><code class="code"><span class="constructor">Targetint</span>.div</code></a>, except that arguments and result are interpreted as <em> unsigned</em> integers.</p>
</div>
</div>
<pre><span id="VALrem"><span class="keyword">val</span> rem</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Integer remainder. If <code class="code">y</code> is not zero, the result
of <code class="code"><span class="constructor">Targetint</span>.rem x y</code> satisfies the following properties:
<code class="code"><span class="constructor">Targetint</span>.zero <= <span class="constructor">Nativeint</span>.rem x y < <span class="constructor">Targetint</span>.abs y</code> and
<code class="code">x = <span class="constructor">Targetint</span>.add (<span class="constructor">Targetint</span>.mul (<span class="constructor">Targetint</span>.div x y) y)<br>
(<span class="constructor">Targetint</span>.rem x y)</code>.
If <code class="code">y = 0</code>, <code class="code"><span class="constructor">Targetint</span>.rem x y</code> raises <code class="code"><span class="constructor">Division_by_zero</span></code>.</p>
</div>
</div>
<pre><span id="VALunsigned_rem"><span class="keyword">val</span> unsigned_rem</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Same as <a href="Targetint.html#VALrem"><code class="code"><span class="constructor">Targetint</span>.rem</code></a>, except that arguments and result are interpreted as <em> unsigned</em> integers.</p>
</div>
</div>
<pre><span id="VALsucc"><span class="keyword">val</span> succ</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Successor.
<code class="code"><span class="constructor">Targetint</span>.succ x</code> is <code class="code"><span class="constructor">Targetint</span>.add x <span class="constructor">Targetint</span>.one</code>.</p>
</div>
</div>
<pre><span id="VALpred"><span class="keyword">val</span> pred</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Predecessor.
<code class="code"><span class="constructor">Targetint</span>.pred x</code> is <code class="code"><span class="constructor">Targetint</span>.sub x <span class="constructor">Targetint</span>.one</code>.</p>
</div>
</div>
<pre><span id="VALabs"><span class="keyword">val</span> abs</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Return the absolute value of its argument.</p>
</div>
</div>
<pre><span id="VALsize"><span class="keyword">val</span> size</span> : <code class="type">int</code></pre><div class="info ">
<div class="info-desc">
<p>The size in bits of a target native integer.</p>
</div>
</div>
<pre><span id="VALmax_int"><span class="keyword">val</span> max_int</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>The greatest representable target integer,
either 2<sup class="superscript">31</sup> - 1 on a 32-bit platform,
or 2<sup class="superscript">63</sup> - 1 on a 64-bit platform.</p>
</div>
</div>
<pre><span id="VALmin_int"><span class="keyword">val</span> min_int</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>The smallest representable target integer,
either -2<sup class="superscript">31</sup> on a 32-bit platform,
or -2<sup class="superscript">63</sup> on a 64-bit platform.</p>
</div>
</div>
<pre><span id="VALlogand"><span class="keyword">val</span> logand</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Bitwise logical and.</p>
</div>
</div>
<pre><span id="VALlogor"><span class="keyword">val</span> logor</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Bitwise logical or.</p>
</div>
</div>
<pre><span id="VALlogxor"><span class="keyword">val</span> logxor</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Bitwise logical exclusive or.</p>
</div>
</div>
<pre><span id="VALlognot"><span class="keyword">val</span> lognot</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Bitwise logical negation.</p>
</div>
</div>
<pre><span id="VALshift_left"><span class="keyword">val</span> shift_left</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> int -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code"><span class="constructor">Targetint</span>.shift_left x y</code> shifts <code class="code">x</code> to the left by <code class="code">y</code> bits.
The result is unspecified if <code class="code">y < 0</code> or <code class="code">y >= bitsize</code>,
where <code class="code">bitsize</code> is <code class="code">32</code> on a 32-bit platform and
<code class="code">64</code> on a 64-bit platform.</p>
</div>
</div>
<pre><span id="VALshift_right"><span class="keyword">val</span> shift_right</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> int -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code"><span class="constructor">Targetint</span>.shift_right x y</code> shifts <code class="code">x</code> to the right by <code class="code">y</code> bits.
This is an arithmetic shift: the sign bit of <code class="code">x</code> is replicated
and inserted in the vacated bits.
The result is unspecified if <code class="code">y < 0</code> or <code class="code">y >= bitsize</code>.</p>
</div>
</div>
<pre><span id="VALshift_right_logical"><span class="keyword">val</span> shift_right_logical</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> int -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p><code class="code"><span class="constructor">Targetint</span>.shift_right_logical x y</code> shifts <code class="code">x</code> to the right
by <code class="code">y</code> bits.
This is a logical shift: zeroes are inserted in the vacated bits
regardless of the sign of <code class="code">x</code>.
The result is unspecified if <code class="code">y < 0</code> or <code class="code">y >= bitsize</code>.</p>
</div>
</div>
<pre><span id="VALof_int"><span class="keyword">val</span> of_int</span> : <code class="type">int -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given integer (type <code class="code">int</code>) to a target integer
(type <code class="code">t</code>), module the target word size.</p>
</div>
</div>
<pre><span id="VALof_int_exn"><span class="keyword">val</span> of_int_exn</span> : <code class="type">int -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given integer (type <code class="code">int</code>) to a target integer
(type <code class="code">t</code>). Raises a fatal error if the conversion is not exact.</p>
</div>
</div>
<pre><span id="VALto_int"><span class="keyword">val</span> to_int</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> int</code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given target integer (type <code class="code">t</code>) to an
integer (type <code class="code">int</code>). The high-order bit is lost during
the conversion.</p>
</div>
</div>
<pre><span id="VALof_float"><span class="keyword">val</span> of_float</span> : <code class="type">float -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given floating-point number to a target integer,
discarding the fractional part (truncate towards 0).
The result of the conversion is undefined if, after truncation,
the number is outside the range
[<a href="Targetint.html#VALmin_int"><code class="code"><span class="constructor">Targetint</span>.min_int</code></a>, <a href="Targetint.html#VALmax_int"><code class="code"><span class="constructor">Targetint</span>.max_int</code></a>].</p>
</div>
</div>
<pre><span id="VALto_float"><span class="keyword">val</span> to_float</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> float</code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given target integer to a floating-point number.</p>
</div>
</div>
<pre><span id="VALof_int32"><span class="keyword">val</span> of_int32</span> : <code class="type">int32 -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given 32-bit integer (type <code class="code">int32</code>)
to a target integer.</p>
</div>
</div>
<pre><span id="VALto_int32"><span class="keyword">val</span> to_int32</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> int32</code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given target integer to a
32-bit integer (type <code class="code">int32</code>). On 64-bit platforms,
the 64-bit native integer is taken modulo 2<sup class="superscript">32</sup>,
i.e. the top 32 bits are lost. On 32-bit platforms,
the conversion is exact.</p>
</div>
</div>
<pre><span id="VALof_int64"><span class="keyword">val</span> of_int64</span> : <code class="type">int64 -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given 64-bit integer (type <code class="code">int64</code>)
to a target integer.</p>
</div>
</div>
<pre><span id="VALto_int64"><span class="keyword">val</span> to_int64</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> int64</code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given target integer to a
64-bit integer (type <code class="code">int64</code>).</p>
</div>
</div>
<pre><span id="VALof_string"><span class="keyword">val</span> of_string</span> : <code class="type">string -> <a href="Targetint.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Convert the given string to a target integer.
The string is read in decimal (by default) or in hexadecimal,
octal or binary if the string begins with <code class="code">0x</code>, <code class="code">0o</code> or <code class="code">0b</code>
respectively.
Raise <code class="code"><span class="constructor">Failure</span> <span class="string">"int_of_string"</span></code> if the given string is not
a valid representation of an integer, or if the integer represented
exceeds the range of integers representable in type <code class="code">nativeint</code>.</p>
</div>
</div>
<pre><span id="VALto_string"><span class="keyword">val</span> to_string</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> string</code></pre><div class="info ">
<div class="info-desc">
<p>Return the string representation of its argument, in decimal.</p>
</div>
</div>
<pre><span id="VALcompare"><span class="keyword">val</span> compare</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> int</code></pre><div class="info ">
<div class="info-desc">
<p>The comparison function for target integers, with the same specification as
<code class="code"><span class="constructor">Stdlib</span>.compare</code>. Along with the type <code class="code">t</code>, this function <code class="code">compare</code>
allows the module <code class="code"><span class="constructor">Targetint</span></code> to be passed as argument to the functors
<code class="code"><span class="constructor">Set</span>.<span class="constructor">Make</span></code> and <code class="code"><span class="constructor">Map</span>.<span class="constructor">Make</span></code>.</p>
</div>
</div>
<pre><span id="VALunsigned_compare"><span class="keyword">val</span> unsigned_compare</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> int</code></pre><div class="info ">
<div class="info-desc">
<p>Same as <a href="Targetint.html#VALcompare"><code class="code"><span class="constructor">Targetint</span>.compare</code></a>, except that arguments are interpreted as <em>unsigned</em>
integers.</p>
</div>
</div>
<pre><span id="VALequal"><span class="keyword">val</span> equal</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPEt">t</a> -> bool</code></pre><div class="info ">
<div class="info-desc">
<p>The equal function for target ints.</p>
</div>
</div>
<pre><code><span id="TYPErepr"><span class="keyword">type</span> <code class="type"></code>repr</span> = </code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTrepr.Int32"><span class="constructor">Int32</span></span> <span class="keyword">of</span> <code class="type">int32</code></code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code><span class="keyword">|</span></code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTrepr.Int64"><span class="constructor">Int64</span></span> <span class="keyword">of</span> <code class="type">int64</code></code></td>
</tr></table>
<pre><span id="VALrepr"><span class="keyword">val</span> repr</span> : <code class="type"><a href="Targetint.html#TYPEt">t</a> -> <a href="Targetint.html#TYPErepr">repr</a></code></pre><div class="info ">
<div class="info-desc">
<p>The concrete representation of a native integer.</p>
</div>
</div>
<pre><span id="VALprint"><span class="keyword">val</span> print</span> : <code class="type">Format.formatter -> <a href="Targetint.html#TYPEt">t</a> -> unit</code></pre><div class="info ">
<div class="info-desc">
<p>Print a target integer to a formatter.</p>
</div>
</div>
</body></html>
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