gstreamer/testsuite/caps/erathostenes.c
Benjamin Otte 614b4d1627 gst/gstcaps.c: check for ANY caps before appending/unioning
Original commit message from CVS:
* gst/gstcaps.c: (gst_caps_append), (gst_caps_union):
check for ANY caps before appending/unioning
* gst/gstcaps.c: (gst_caps_is_subset),
(gst_caps_is_equal), (gst_caps_structure_subtract_field),
(gst_caps_structure_subtract), (gst_caps_subtract):
* gst/gstcaps.h:
add gst_caps_is_equal, gst_caps_is_subset and gst_caps_subtract to
the API. deprecate gst_caps_is_equal_fixed
* gst/gstpad.c: (gst_pad_try_set_caps):
* gst/gstqueue.c: (gst_queue_link):
s/gst_caps_is_equal_fixed/gst_caps_is_equal/
* gst/gststructure.c: (gst_structure_get_name_id):
* gst/gststructure.h:
add function gst_structure_get_name_id
* gst/gstvalue.c: (gst_value_subtract_int_int_range),
(gst_value_create_new_range), (gst_value_subtract_int_range_int),
(gst_value_subtract_int_range_int_range),
(gst_value_subtract_double_double_range),
(gst_value_subtract_double_range_double),
(gst_value_subtract_double_range_double_range),
(gst_value_subtract_from_list), (gst_value_subtract_list),
(gst_value_can_intersect), (gst_value_subtract),
(gst_value_can_subtract), (gst_value_register_subtract_func),
(_gst_value_initialize):
* gst/gstvalue.h:
add support for subtracting values from each other. Note that
subtracting means subtracting as in set theory. Required for caps
stuff above.
* testsuite/caps/.cvsignore:
* testsuite/caps/Makefile.am:
* testsuite/caps/erathostenes.c: (erathostenes), (main):
* testsuite/caps/sets.c: (check_caps), (main):
* testsuite/caps/subtract.c: (check_caps), (main):
add tests for subtraction and equality code.
2004-04-21 03:25:13 +00:00

71 lines
2 KiB
C

/*
* Copyright (C) 2004 Benjamin Otte <in7y118@public.uni-hamburg.de>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gst/gst.h>
#include <stdlib.h>
#define MAX_SIEVE 20
static void
erathostenes (GValue * sieve, gboolean up, int size)
{
guint i, j;
GValue temp = { 0, };
GValue list = { 0, };
g_value_init (sieve, GST_TYPE_INT_RANGE);
gst_value_set_int_range (sieve, 2, size * size);
for (i = up ? 2 : size; up ? (i <= size) : (i >= 2); i += up ? 1 : -1) {
g_value_init (&list, GST_TYPE_LIST);
for (j = 2 * i; j <= size * size; j += i) {
GValue v = { 0, };
g_value_init (&v, G_TYPE_INT);
g_value_set_int (&v, j);
gst_value_list_append_value (&list, &v);
g_value_unset (&v);
}
gst_value_subtract (&temp, sieve, &list);
g_value_unset (sieve);
gst_value_init_and_copy (sieve, &temp);
g_value_unset (&temp);
g_value_unset (&list);
/* g_print ("%2u: %s\n", i, gst_value_serialize (sieve)); */
}
g_print ("%s\n", gst_value_serialize (sieve));
}
gint
main (gint argc, gchar ** argv)
{
GValue up = { 0, };
GValue down = { 0, };
guint size = MAX_SIEVE;
gst_init (&argc, &argv);
if (argc > 1)
size = atol (argv[1]);
erathostenes (&up, TRUE, size);
erathostenes (&down, FALSE, size);
g_assert (gst_value_compare (&up, &down) == GST_VALUE_EQUAL);
return 0;
}