1 files changed, 138 insertions, 0 deletions
diff --git a/clib/src/table_iter.c b/clib/src/table_iter.c
new file mode 100644
index 0000000..cb73573
--- /dev/null
+++ b/clib/src/table_iter.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2014
+ *
+ * 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
+ */
+
+/*
+ *   File: table_iter.c
+ * Author: Shaun Wetzstein <shaun@us.ibm.com>
+ *  Descr:
+ *   Note:
+ *   Date: 10/22/10
+ */
+
+#include <unistd.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <malloc.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <limits.h>
+
+#include "assert.h"
+#include "misc.h"
+
+#include "table_iter.h"
+
+/* ======================================================================= */
+
+int table_iter_init(table_iter_t * self, table_t * table, uint32_t flags)
+{
+	assert(self != NULL);
+	assert(table != NULL);
+
+	self->flags = flags;
+	self->table = table;
+
+	if (self->flags & TI_FLAG_BWD) {
+		if (vector_iter_init(&self->it, &table->table, VI_FLAG_BWD) < 0)
+			return -1;
+	} else {
+		if (vector_iter_init(&self->it, &table->table, VI_FLAG_FWD) < 0)
+			return -1;
+	}
+
+	return vector_iter_inc(&self->it) != NULL;
+}
+
+int table_iter_clear(table_iter_t * self)
+{
+	assert(self != NULL);
+
+	if (vector_iter_clear(&self->it) < 0)
+		return -1;
+
+	self->table = NULL;
+
+	return 0;
+}
+
+const value_t *table_iter_elem(table_iter_t * self)
+{
+	assert(self != NULL);
+	return (value_t *) vector_iter_elem(&self->it);
+}
+
+const value_t *table_iter_inc1(table_iter_t * self)
+{
+	return table_iter_inc2(self, 1);
+}
+
+const value_t *table_iter_inc2(table_iter_t * self, size_t count)
+{
+	assert(self != NULL);
+
+	const value_t *v = NULL;
+
+	for (size_t i = 0; i < count; i++) {
+		if (self->flags & TI_FLAG_BWD) {
+			v = (value_t *) vector_iter_dec(&self->it);	// columns
+		} else {
+			v = (value_t *) vector_iter_inc(&self->it);	// columns
+		}
+	}
+
+	return v;
+}
+
+const value_t *table_iter_dec1(table_iter_t * self)
+{
+	return table_iter_dec2(self, 1);
+}
+
+const value_t *table_iter_dec2(table_iter_t * self, size_t count)
+{
+	assert(self != NULL);
+
+	const value_t *v = NULL;
+
+	for (size_t i = 0; i < count; i++) {
+		if (self->flags & TI_FLAG_BWD) {
+			v = (value_t *) vector_iter_inc(&self->it);	// columns
+		} else {
+			v = (value_t *) vector_iter_dec(&self->it);	// columns
+		}
+	}
+
+	return v;
+}
+
+size_t table_iter_pos1(table_iter_t * self)
+{
+	assert(self != NULL);
+	return vector_iter_pos(&self->it) + 1;
+}
+
+int table_iter_pos2(table_iter_t * self, size_t pos)
+{
+	assert(self != NULL);
+	assert(pos < table_rows(self->table));
+	return vector_iter_pos(&self->it, pos + 1);
+}
+
+/* ======================================================================= */