glib-basic-types.html

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<div class="refsect2" lang="en">
<a name="id2824711"></a><h3>
<a name="gulong"></a>gulong</h3>
<a class="indexterm" name="id2824723"></a><pre class="programlisting">typedef unsigned long   gulong;
</pre>
<p>
Corresponds to the standard C <span class="type">unsigned long</span> type.
Values of this type can range from 0 to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXULONG:CAPS"><span class="type">G_MAXULONG</span></a>.
</p>
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<div class="refsect2" lang="en">
<a name="id2824752"></a><h3>
<a name="gint8"></a>gint8</h3>
<a class="indexterm" name="id2824765"></a><pre class="programlisting">typedef signed char gint8;
</pre>
<p>
A signed integer guaranteed to be 8 bits on all platforms.
Values of this type can range from -128 to 127.
</p>
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<div class="refsect2" lang="en">
<a name="id2824782"></a><h3>
<a name="guint8"></a>guint8</h3>
<a class="indexterm" name="id2824794"></a><pre class="programlisting">typedef unsigned char guint8;
</pre>
<p>
An unsigned integer guaranteed to be 8 bits on all platforms.
Values of this type can range from 0 to 255.
</p>
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<div class="refsect2" lang="en">
<a name="id2824811"></a><h3>
<a name="gint16"></a>gint16</h3>
<a class="indexterm" name="id2824823"></a><pre class="programlisting">typedef signed short gint16;
</pre>
<p>
A signed integer guaranteed to be 16 bits on all platforms.
Values of this type can range from -32,768 to 32,767.
</p>
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<div class="refsect2" lang="en">
<a name="id2824840"></a><h3>
<a name="guint16"></a>guint16</h3>
<a class="indexterm" name="id2824852"></a><pre class="programlisting">typedef unsigned short guint16;
</pre>
<p>
An unsigned integer guaranteed to be 16 bits on all platforms.
Values of this type can range from 0 to 65,535.
</p>
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<div class="refsect2" lang="en">
<a name="id2824870"></a><h3>
<a name="gint32"></a>gint32</h3>
<a class="indexterm" name="id2824882"></a><pre class="programlisting">typedef signed int gint32;
</pre>
<p>
A signed integer guaranteed to be 32 bits on all platforms.
Values of this type can range from -2,147,483,648 to 2,147,483,647.
</p>
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<hr>
<div class="refsect2" lang="en">
<a name="id2824900"></a><h3>
<a name="guint32"></a>guint32</h3>
<a class="indexterm" name="id2824912"></a><pre class="programlisting">typedef unsigned int guint32;
</pre>
<p>
An unsigned integer guaranteed to be 32 bits on all platforms.
Values of this type can range from 0 to 4,294,967,295.
</p>
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<hr>
<div class="refsect2" lang="en">
<a name="id2824929"></a><h3>
<a name="G-HAVE-GINT64:CAPS"></a>G_HAVE_GINT64</h3>
<a class="indexterm" name="id2824944"></a><pre class="programlisting">#define G_HAVE_GINT64 1          /* deprecated, always true */
</pre>
<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">G_HAVE_GINT64</code> is deprecated and should not be used in newly-written code. GLib requires 64-bit integer support since version 2.0, therefore
<a class="link" href="glib-Basic-Types.html#G-HAVE-GINT64:CAPS"><code class="literal">G_HAVE_GINT64</code></a> is <span class="emphasis"><em>always</em></span> defined.</p>
</div>
<p>
This macro is defined if 64-bit signed and unsigned integers are available
on the platform. 
</p>
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<hr>
<div class="refsect2" lang="en">
<a name="id2824989"></a><h3>
<a name="gint64"></a>gint64</h3>
<a class="indexterm" name="id2825001"></a><pre class="programlisting">G_GNUC_EXTENSION typedef signed long long gint64;
</pre>
<p>
A signed integer guaranteed to be 64 bits on all platforms.
Values of this type can range from -9,223,372,036,854,775,808 to
9,223,372,036,854,775,807.
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2825019"></a><h3>
<a name="guint64"></a>guint64 ()</h3>
<a class="indexterm" name="id2825031"></a><pre class="programlisting">GLIB_VAR            guint64                             ();</pre>
<p>
An unsigned integer guaranteed to be 64 bits on all platforms.
Values of this type can range from 0 to 18,446,744,073,709,551,615.
</p>
<div class="variablelist"><table border="0">
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<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></p></td>
<td>


</td>
</tr></tbody>
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<div class="refsect2" lang="en">
<a name="id2825070"></a><h3>
<a name="G-GINT64-CONSTANT:CAPS"></a>G_GINT64_CONSTANT()</h3>
<a class="indexterm" name="id2825083"></a><pre class="programlisting">#define G_GINT64_CONSTANT(val)	(G_GNUC_EXTENSION (val##LL))
</pre>
<p>
This macro is used to insert 64-bit integer literals into the source code.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em>&#160;:</span></p></td>
<td>a literal integer value, e.g. 0x1d636b02300a7aa7U.


</td>
</tr></tbody>
</table></div>
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<hr>
<div class="refsect2" lang="en">
<a name="id2825119"></a><h3>
<a name="G-GUINT64-CONSTANT:CAPS"></a>G_GUINT64_CONSTANT()</h3>
<a class="indexterm" name="id2825134"></a><pre class="programlisting">#define G_GUINT64_CONSTANT(val)	(G_GNUC_EXTENSION (val##ULL))
</pre>
<p>
This macro is used to insert 64-bit unsigned integer literals into the 
source code.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>val</code></em>&#160;:</span></p></td>
<td>a literal integer value, e.g. 0x1d636b02300a7aa7U.
</td>
</tr></tbody>
</table></div>
<p class="since">Since 2.10


</p>
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<hr>
<div class="refsect2" lang="en">
<a name="id2825177"></a><h3>
<a name="gfloat"></a>gfloat</h3>
<a class="indexterm" name="id2825189"></a><pre class="programlisting">typedef float   gfloat;
</pre>
<p>
Corresponds to the standard C <span class="type">float</span> type.
Values of this type can range from -<a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXFLOAT:CAPS"><span class="type">G_MAXFLOAT</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXFLOAT:CAPS"><span class="type">G_MAXFLOAT</span></a>.
</p>
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<hr>
<div class="refsect2" lang="en">
<a name="id2825227"></a><h3>
<a name="gdouble"></a>gdouble</h3>
<a class="indexterm" name="id2825239"></a><pre class="programlisting">typedef double  gdouble;
</pre>
<p>
Corresponds to the standard C <span class="type">double</span> type.
Values of this type can range from -<a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXDOUBLE:CAPS"><span class="type">G_MAXDOUBLE</span></a> to <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXDOUBLE:CAPS"><span class="type">G_MAXDOUBLE</span></a>.
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2825277"></a><h3>
<a name="gsize"></a>gsize</h3>
<a class="indexterm" name="id2825289"></a><pre class="programlisting">typedef unsigned int gsize;
</pre>
<p>
An unsigned integer type of the result of the sizeof operator, corresponding
to the size_t type defined in C99. This type is wide enough to hold the numeric
value of a pointer, so it is usually 32bit wide on a 32bit platform and
64bit wide on a 64bit platform.
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2825308"></a><h3>
<a name="gssize"></a>gssize</h3>
<a class="indexterm" name="id2825320"></a><pre class="programlisting">typedef signed int gssize;
</pre>
<p>
A signed variant of gsize, corresponding to the ssize_t defined on most platforms.
</p>
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<hr>
<div class="refsect2" lang="en">
<a name="id2825337"></a><h3>
<a name="goffset"></a>goffset</h3>
<a class="indexterm" name="id2825349"></a><pre class="programlisting">typedef gint64 goffset;
</pre>
<p>
A signed integer type that is used for file offsets, corresponding to the 
C99 type off64_t.
</p>
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