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Output to glibconfig.h typedefs for gintptr as the signed integer type

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2008-07-28  Tor Lillqvist  <tml@novell.com>

	* configure.in: Output to glibconfig.h typedefs for gintptr as the
	signed integer type that can hold a pointer, and guintptr as the
	corresponding unsigned type. These types are portable equivalents
	to intptr_t and uintptr_t which are not available in all
	compilers.

	For all current platforms, they will presumably end up as the same
	types as gssize and gsize, but in theory size_t can be smaller
	than intptr_t. Also, the intended use case for gintptr and
	guintptr is different from that of gssize and gsize. As the name
	indicates, gintptr is for when one wants an integer type that can
	hold a pointer, and gsize is for when one wants an integer type
	that can hold the value of the sizeof operator.


svn path=/trunk/; revision=7272
This commit is contained in:
Tor Lillqvist 2008-07-30 15:30:26 +00:00 committed by Tor Lillqvist
parent 6d34fb9368
commit 6eb6ee655e
2 changed files with 42 additions and 5 deletions
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16
ChangeLog
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@ -1,3 +1,19 @@
2008-07-28 Tor Lillqvist <tml@novell.com>
* configure.in: Output to glibconfig.h typedefs for gintptr as the
signed integer type that can hold a pointer, and guintptr as the
corresponding unsigned type. These types are portable equivalents
to intptr_t and uintptr_t which are not available in all
compilers.
For all current platforms, they will presumably end up as the same
types as gssize and gsize, but in theory size_t can be smaller
than intptr_t. Also, the intended use case for gintptr and
guintptr is different from that of gssize and gsize. As the name
indicates, gintptr is for when one wants an integer type that can
hold a pointer, and gsize is for when one wants an integer type
that can hold the value of the sizeof operator.
2008-07-28 Matthias Clasen <mclasen@redhat.com>
Bug 544465 – gmarkup makes it hard to use pre-rolled parsers

31
configure.in
View File

@ -2763,6 +2763,9 @@ _______EOF
#define GINT_TO_POINTER(i) ((gpointer) ${glib_gpi_cast} (i))
#define GUINT_TO_POINTER(u) ((gpointer) ${glib_gpui_cast} (u))
typedef signed $glib_intptr_type_define gintptr;
typedef unsigned $glib_intptr_type_define guintptr;
_______EOF
else
echo '#error SIZEOF_VOID_P unknown - This should never happen' >>$outfile
@ -3122,12 +3125,30 @@ esac
gintbits=`expr $ac_cv_sizeof_int \* 8`
glongbits=`expr $ac_cv_sizeof_long \* 8`
case $ac_cv_sizeof_void_p in
$ac_cv_sizeof_int) glib_gpi_cast='' glib_gpui_cast='' ;;
$ac_cv_sizeof_long) glib_gpi_cast='(glong)' glib_gpui_cast='(gulong)' ;;
$ac_cv_sizeof_long_long)glib_gpi_cast='(gint64)' glib_gpui_cast='(guint64)' ;;
*) glib_unknown_void_p=yes ;;
$ac_cv_sizeof_int)
glib_intptr_type_define=int
glib_gpi_cast=''
glib_gpui_cast=''
;;
$ac_cv_sizeof_long)
glib_intptr_type_define=long
glib_gpi_cast='(glong)'
glib_gpui_cast='(gulong)'
;;
$ac_cv_sizeof_long_long)
glib_intptr_type_define='long long'
glib_gpi_cast='(gint64)'
glib_gpui_cast='(guint64)'
;;
$ac_cv_sizeof___int64)
glib_intptr_type_define=__int64
glib_gpi_cast='(gint64)'
glib_gpui_cast='(guint64)'
;;
*)
glib_unknown_void_p=yes
;;
esac