glib-random-numbers.html

glid编写实例

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<span class="term"><em class="parameter"><code>seed_length</code></em>&#160;:</span></td>
<td> length of array
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<p>Since  2.4
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<a name="id3003991"></a><h3>
<a name="g-rand-boolean"></a>g_rand_boolean()</h3>
<a class="indexterm" name="id3004001"></a><pre class="programlisting">#define     g_rand_boolean(rand_)</pre>
<p>
Returns a random <a href="glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> from <em class="parameter"><code>rand_</code></em>. This corresponds to a unbiased
coin toss.
</p>
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<span class="term"><em class="parameter"><code>rand_</code></em>&#160;:</span></td>
<td>a <a href="glib-Random-Numbers.html#GRand"><span class="type">GRand</span></a>.
</td>
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<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td>a random <a href="glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>.


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<div class="refsect2" lang="en">
<a name="id3004075"></a><h3>
<a name="g-rand-int"></a>g_rand_int ()</h3>
<a class="indexterm" name="id3004086"></a><pre class="programlisting"><a href="glib-Basic-Types.html#guint32">guint32</a>     g_rand_int                      (<a href="glib-Random-Numbers.html#GRand">GRand</a> *rand_);</pre>
<p>
Returns the next random <a href="glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> from <em class="parameter"><code>rand_</code></em> equally distributed over
the range [0..2^32-1].</p>
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<span class="term"><em class="parameter"><code>rand_</code></em>&#160;:</span></td>
<td> a <a href="glib-Random-Numbers.html#GRand"><span class="type">GRand</span></a>.
</td>
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<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> A random number.
</td>
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<hr>
<div class="refsect2" lang="en">
<a name="id3004166"></a><h3>
<a name="g-rand-int-range"></a>g_rand_int_range ()</h3>
<a class="indexterm" name="id3004177"></a><pre class="programlisting"><a href="glib-Basic-Types.html#gint32">gint32</a>      g_rand_int_range                (<a href="glib-Random-Numbers.html#GRand">GRand</a> *rand_,
                                             <a href="glib-Basic-Types.html#gint32">gint32</a> begin,
                                             <a href="glib-Basic-Types.html#gint32">gint32</a> end);</pre>
<p>
Returns the next random <a href="glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> from <em class="parameter"><code>rand_</code></em> equally distributed over
the range [<em class="parameter"><code>begin</code></em>..<em class="parameter"><code>end</code></em>-1].</p>
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<span class="term"><em class="parameter"><code>rand_</code></em>&#160;:</span></td>
<td> a <a href="glib-Random-Numbers.html#GRand"><span class="type">GRand</span></a>.
</td>
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<td>
<span class="term"><em class="parameter"><code>begin</code></em>&#160;:</span></td>
<td> lower closed bound of the interval.
</td>
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<td>
<span class="term"><em class="parameter"><code>end</code></em>&#160;:</span></td>
<td> upper open bound of the interval.
</td>
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<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> A random number.
</td>
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<div class="refsect2" lang="en">
<a name="id3004312"></a><h3>
<a name="g-rand-double"></a>g_rand_double ()</h3>
<a class="indexterm" name="id3004323"></a><pre class="programlisting"><a href="glib-Basic-Types.html#gdouble">gdouble</a>     g_rand_double                   (<a href="glib-Random-Numbers.html#GRand">GRand</a> *rand_);</pre>
<p>
Returns the next random <a href="glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> from <em class="parameter"><code>rand_</code></em> equally distributed over
the range [0..1).</p>
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<span class="term"><em class="parameter"><code>rand_</code></em>&#160;:</span></td>
<td> a <a href="glib-Random-Numbers.html#GRand"><span class="type">GRand</span></a>.
</td>
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<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> A random number.
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<div class="refsect2" lang="en">
<a name="id3004403"></a><h3>
<a name="g-rand-double-range"></a>g_rand_double_range ()</h3>
<a class="indexterm" name="id3004414"></a><pre class="programlisting"><a href="glib-Basic-Types.html#gdouble">gdouble</a>     g_rand_double_range             (<a href="glib-Random-Numbers.html#GRand">GRand</a> *rand_,
                                             <a href="glib-Basic-Types.html#gdouble">gdouble</a> begin,
                                             <a href="glib-Basic-Types.html#gdouble">gdouble</a> end);</pre>
<p>
Returns the next random <a href="glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> from <em class="parameter"><code>rand_</code></em> equally distributed over
the range [<em class="parameter"><code>begin</code></em>..<em class="parameter"><code>end</code></em>).</p>
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<span class="term"><em class="parameter"><code>rand_</code></em>&#160;:</span></td>
<td> a <a href="glib-Random-Numbers.html#GRand"><span class="type">GRand</span></a>.
</td>
</tr>
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<td>
<span class="term"><em class="parameter"><code>begin</code></em>&#160;:</span></td>
<td> lower closed bound of the interval.
</td>
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<td>
<span class="term"><em class="parameter"><code>end</code></em>&#160;:</span></td>
<td> upper open bound of the interval.
</td>
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<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> A random number.
</td>
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<div class="refsect2" lang="en">
<a name="id3004549"></a><h3>
<a name="g-random-set-seed"></a>g_random_set_seed ()</h3>
<a class="indexterm" name="id3004560"></a><pre class="programlisting">void        g_random_set_seed               (<a href="glib-Basic-Types.html#guint32">guint32</a> seed);</pre>
<p>
Sets the seed for the global random number generator, which is used
by the <code class="function">g_random_*</code> functions, to <em class="parameter"><code>seed</code></em>.</p>
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<span class="term"><em class="parameter"><code>seed</code></em>&#160;:</span></td>
<td> a value to reinitialize the global random number generator.
</td>
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<hr>
<div class="refsect2" lang="en">
<a name="id3004621"></a><h3>
<a name="g-random-boolean"></a>g_random_boolean()</h3>
<a class="indexterm" name="id3004632"></a><pre class="programlisting">#define     g_random_boolean()</pre>
<p>
Returns a random <a href="glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>. This corresponds to a unbiased coin toss.
</p>
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<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td>a random <a href="glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>.


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<div class="refsect2" lang="en">
<a name="id3004679"></a><h3>
<a name="g-random-int"></a>g_random_int ()</h3>
<a class="indexterm" name="id3004690"></a><pre class="programlisting"><a href="glib-Basic-Types.html#guint32">guint32</a>     g_random_int                    (void);</pre>
<p>
Return a random <a href="glib-Basic-Types.html#guint32"><span class="type">guint32</span></a> equally distributed over the range
[0..2^32-1].</p>
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<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> A random number.
</td>
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<hr>
<div class="refsect2" lang="en">
<a name="id3004736"></a><h3>
<a name="g-random-int-range"></a>g_random_int_range ()</h3>
<a class="indexterm" name="id3004747"></a><pre class="programlisting"><a href="glib-Basic-Types.html#gint32">gint32</a>      g_random_int_range              (<a href="glib-Basic-Types.html#gint32">gint32</a> begin,
                                             <a href="glib-Basic-Types.html#gint32">gint32</a> end);</pre>
<p>
Returns a random <a href="glib-Basic-Types.html#gint32"><span class="type">gint32</span></a> equally distributed over the range
[<em class="parameter"><code>begin</code></em>..<em class="parameter"><code>end</code></em>-1].</p>
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<td>
<span class="term"><em class="parameter"><code>begin</code></em>&#160;:</span></td>
<td> lower closed bound of the interval.
</td>
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<td>
<span class="term"><em class="parameter"><code>end</code></em>&#160;:</span></td>
<td> upper open bound of the interval.
</td>
</tr>
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<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> A random number.
</td>
</tr>
</tbody>
</table></div>
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<hr>
<div class="refsect2" lang="en">
<a name="id3004847"></a><h3>
<a name="g-random-double"></a>g_random_double ()</h3>
<a class="indexterm" name="id3004858"></a><pre class="programlisting"><a href="glib-Basic-Types.html#gdouble">gdouble</a>     g_random_double                 (void);</pre>
<p>
Returns a random <a href="glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> equally distributed over the range [0..1).</p>
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<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> A random number.
</td>
</tr></tbody>
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<hr>
<div class="refsect2" lang="en">
<a name="id3004904"></a><h3>
<a name="g-random-double-range"></a>g_random_double_range ()</h3>
<a class="indexterm" name="id3004915"></a><pre class="programlisting"><a href="glib-Basic-Types.html#gdouble">gdouble</a>     g_random_double_range           (<a href="glib-Basic-Types.html#gdouble">gdouble</a> begin,
                                             <a href="glib-Basic-Types.html#gdouble">gdouble</a> end);</pre>
<p>
Returns a random <a href="glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> equally distributed over the range [<em class="parameter"><code>begin</code></em>..<em class="parameter"><code>end</code></em>).</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
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<td>
<span class="term"><em class="parameter"><code>begin</code></em>&#160;:</span></td>
<td> lower closed bound of the interval.
</td>
</tr>
<tr>
<td>
<span class="term"><em class="parameter"><code>end</code></em>&#160;:</span></td>
<td> upper open bound of the interval.
</td>
</tr>
<tr>
<td>
<span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> A random number.
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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