summaryrefslogtreecommitdiff
path: root/pjlib/src/pj/array.c
diff options
context:
space:
mode:
Diffstat (limited to 'pjlib/src/pj/array.c')
-rw-r--r--pjlib/src/pj/array.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/pjlib/src/pj/array.c b/pjlib/src/pj/array.c
new file mode 100644
index 0000000..5b39d19
--- /dev/null
+++ b/pjlib/src/pj/array.c
@@ -0,0 +1,71 @@
+/* $Id: array.c 3553 2011-05-05 06:14:19Z nanang $ */
+/*
+ * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
+ * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
+ *
+ * This program 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 program 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 program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <pj/array.h>
+#include <pj/string.h>
+#include <pj/assert.h>
+#include <pj/errno.h>
+
+PJ_DEF(void) pj_array_insert( void *array,
+ unsigned elem_size,
+ unsigned count,
+ unsigned pos,
+ const void *value)
+{
+ if (count && pos < count) {
+ pj_memmove( (char*)array + (pos+1)*elem_size,
+ (char*)array + pos*elem_size,
+ (count-pos)*elem_size);
+ }
+ pj_memmove((char*)array + pos*elem_size, value, elem_size);
+}
+
+PJ_DEF(void) pj_array_erase( void *array,
+ unsigned elem_size,
+ unsigned count,
+ unsigned pos)
+{
+ pj_assert(count != 0);
+ if (pos < count-1) {
+ pj_memmove( (char*)array + pos*elem_size,
+ (char*)array + (pos+1)*elem_size,
+ (count-pos-1)*elem_size);
+ }
+}
+
+PJ_DEF(pj_status_t) pj_array_find( const void *array,
+ unsigned elem_size,
+ unsigned count,
+ pj_status_t (*matching)(const void *value),
+ void **result)
+{
+ unsigned i;
+ const char *char_array = (const char*)array;
+ for (i=0; i<count; ++i) {
+ if ( (*matching)(char_array) == PJ_SUCCESS) {
+ if (result) {
+ *result = (void*)char_array;
+ }
+ return PJ_SUCCESS;
+ }
+ char_array += elem_size;
+ }
+ return PJ_ENOTFOUND;
+}
+