<!-- ##### SECTION Title ##### -->
Basic Types

<!-- ##### SECTION Short_Description ##### -->
standard GLib types, defined for ease-of-use and portability

<!-- ##### SECTION Long_Description ##### -->
<para>
GLib defines a number of commonly used types, which can be divided into
4 groups:

<itemizedlist>
<listitem><para>
New types which are not part of standard C (but are defined
in various C standard library header files) -
#gboolean, #gsize, #gssize, #goffset, #gintptr, #guintptr.
</para></listitem>

<listitem><para>
Integer types which are guaranteed to be the same size across all platforms -
#gint8, #guint8, #gint16, #guint16, #gint32, #guint32, #gint64, #guint64.
</para></listitem>

<listitem><para>
Types which are easier to use than their standard C counterparts -
#gpointer, #gconstpointer, #guchar, #guint, #gushort, #gulong.
</para></listitem>

<listitem><para>
Types which correspond exactly to standard C types, but are included
for completeness - #gchar, #gint, #gshort, #glong, #gfloat, #gdouble.
</para></listitem>
</itemizedlist>

</para>

<!-- ##### SECTION See_Also ##### -->
<para>

</para>

<!-- ##### SECTION Stability_Level ##### -->


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<!-- ##### TYPEDEF gboolean ##### -->
<para>
A standard <type>boolean</type> type.
Variables of this type should only contain the value %TRUE or %FALSE.
</para>


<!-- ##### TYPEDEF gpointer ##### -->
<para>
An untyped pointer.
#gpointer looks better and is easier to use than <type>void*</type>.
</para>


<!-- ##### TYPEDEF gconstpointer ##### -->
<para>
An untyped pointer to constant data.
The data pointed to should not be changed.
</para>
<para>
This is typically used in function prototypes to indicate that the
data pointed to will not be altered by the function.
</para>


<!-- ##### TYPEDEF gchar ##### -->
<para>
Corresponds to the standard C <type>char</type> type.
</para>


<!-- ##### TYPEDEF guchar ##### -->
<para>
Corresponds to the standard C <type>unsigned char</type> type.
</para>


<!-- ##### TYPEDEF gint ##### -->
<para>
Corresponds to the standard C <type>int</type> type.
Values of this type can range from #G_MININT to #G_MAXINT.
</para>


<!-- ##### TYPEDEF guint ##### -->
<para>
Corresponds to the standard C <type>unsigned int</type> type.
Values of this type can range from 0 to #G_MAXUINT.
</para>


<!-- ##### TYPEDEF gshort ##### -->
<para>
Corresponds to the standard C <type>short</type> type.
Values of this type can range from #G_MINSHORT to #G_MAXSHORT.
</para>


<!-- ##### TYPEDEF gushort ##### -->
<para>
Corresponds to the standard C <type>unsigned short</type> type.
Values of this type can range from 0 to #G_MAXUSHORT.
</para>


<!-- ##### TYPEDEF glong ##### -->
<para>
Corresponds to the standard C <type>long</type> type.
Values of this type can range from #G_MINLONG to #G_MAXLONG.
</para>


<!-- ##### TYPEDEF gulong ##### -->
<para>
Corresponds to the standard C <type>unsigned long</type> type.
Values of this type can range from 0 to #G_MAXULONG.
</para>


<!-- ##### TYPEDEF gint8 ##### -->
<para>
A signed integer guaranteed to be 8 bits on all platforms.
Values of this type can range from #G_MININT8 (= -128) to
#G_MAXINT8 (= 127).
</para>


<!-- ##### TYPEDEF guint8 ##### -->
<para>
An unsigned integer guaranteed to be 8 bits on all platforms.
Values of this type can range from 0 to #G_MAXUINT8 (= 255).
</para>


<!-- ##### TYPEDEF gint16 ##### -->
<para>
A signed integer guaranteed to be 16 bits on all platforms.
Values of this type can range from #G_MININT16 (= -32,768) to
#G_MAXINT16 (= 32,767).
</para>
<para>
To print or scan values of this type, use
%G_GINT16_MODIFIER and/or %G_GINT16_FORMAT.
</para>


<!-- ##### TYPEDEF guint16 ##### -->
<para>
An unsigned integer guaranteed to be 16 bits on all platforms.
Values of this type can range from 0 to #G_MAXUINT16 (= 65,535).
</para>
<para>
To print or scan values of this type, use
%G_GINT16_MODIFIER and/or %G_GUINT16_FORMAT.
</para>


<!-- ##### TYPEDEF gint32 ##### -->
<para>
A signed integer guaranteed to be 32 bits on all platforms.
Values of this type can range from #G_MININT32 (= -2,147,483,648) to
#G_MAXINT32 (= 2,147,483,647).
</para>
<para>
To print or scan values of this type, use
%G_GINT32_MODIFIER and/or %G_GINT32_FORMAT.
</para>


<!-- ##### TYPEDEF guint32 ##### -->
<para>
An unsigned integer guaranteed to be 32 bits on all platforms.
Values of this type can range from 0 to #G_MAXUINT32 (= 4,294,967,295).
</para>
<para>
To print or scan values of this type, use
%G_GINT32_MODIFIER and/or %G_GUINT32_FORMAT.
</para>


<!-- ##### MACRO G_HAVE_GINT64 ##### -->
<para>
This macro is defined if 64-bit signed and unsigned integers are available
on the platform. 
</para>

@Deprecated: GLib requires 64-bit integer support since version 2.0, therefore
%G_HAVE_GINT64 is <emphasis>always</emphasis> defined.


<!-- ##### TYPEDEF gint64 ##### -->
<para>
A signed integer guaranteed to be 64 bits on all platforms.
Values of this type can range from #G_MININT64 (= -9,223,372,036,854,775,808) to
#G_MAXINT64 (= 9,223,372,036,854,775,807).
</para>
<para>
To print or scan values of this type, use
%G_GINT64_MODIFIER and/or %G_GINT64_FORMAT.
</para>


<!-- ##### TYPEDEF guint64 ##### -->
<para>
An unsigned integer guaranteed to be 64 bits on all platforms.
Values of this type can range from 0 to #G_MAXUINT64 (= 18,446,744,073,709,551,615).
</para>
<para>
To print or scan values of this type, use
%G_GINT64_MODIFIER and/or %G_GUINT64_FORMAT.
</para>


<!-- ##### MACRO G_GINT64_CONSTANT ##### -->
<para>
This macro is used to insert 64-bit integer literals into the source code.
</para>

@val: a literal integer value, e.g. 0x1d636b02300a7aa7.


<!-- ##### MACRO G_GUINT64_CONSTANT ##### -->
<para>
This macro is used to insert 64-bit unsigned integer literals into the 
source code.
</para>

@val: a literal integer value, e.g. 0x1d636b02300a7aa7U.
@Since: 2.10


<!-- ##### TYPEDEF gfloat ##### -->
<para>
Corresponds to the standard C <type>float</type> type.
Values of this type can range from -#G_MAXFLOAT to #G_MAXFLOAT.
</para>


<!-- ##### TYPEDEF gdouble ##### -->
<para>
Corresponds to the standard C <type>double</type> type.
Values of this type can range from -#G_MAXDOUBLE to #G_MAXDOUBLE.
</para>


<!-- ##### TYPEDEF gsize ##### -->
<para>
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.
Values of this type can range from 0 to #G_MAXSIZE.
</para>
<para>
To print or scan values of this type, use
%G_GSIZE_MODIFIER and/or %G_GSIZE_FORMAT.
</para>


<!-- ##### TYPEDEF gssize ##### -->
<para>
A signed variant of gsize, corresponding to the ssize_t defined on most platforms.
Values of this type can range from #G_MINSSIZE to #G_MAXSSIZE.
</para>
<para>
To print or scan values of this type, use
%G_GSIZE_MODIFIER and/or %G_GSSIZE_FORMAT.
</para>


<!-- ##### TYPEDEF goffset ##### -->
<para>
A signed integer type that is used for file offsets, corresponding to the 
C99 type off64_t.
Values of this type can range from #G_MINOFFSET to #G_MAXOFFSET.
</para>
<para>
To print or scan values of this type, use
%G_GOFFSET_MODIFIER and/or %G_GOFFSET_FORMAT.
</para>

Since: 2.14


<!-- ##### MACRO G_GOFFSET_CONSTANT ##### -->
<para>
This macro is used to insert #goffset 64-bit integer literals into the source code.
See also #G_GINT64_CONSTANT.
</para>

@val: a literal integer value, e.g. 0x1d636b02300a7aa7.
Since: 2.20


<!-- ##### TYPEDEF gintptr ##### -->
<para>
Corresponds to the C99 type <type>intptr_t</type>, a signed integer type that
can hold any pointer.
</para>
<para>
To print or scan values of this type, use
%G_GINTPTR_MODIFIER and/or %G_GINTPTR_FORMAT.
</para>

Since: 2.18


<!-- ##### TYPEDEF guintptr ##### -->
<para>
Corresponds to the C99 type <type>uintptr_t</type>, an unsigned integer type that
can hold any pointer.
</para>
<para>
To print or scan values of this type, use
%G_GINTPTR_MODIFIER and/or %G_GUINTPTR_FORMAT.
</para>

Since: 2.18