Work in progress

compiles with warnings, definitely not working

src/demand.c

@@ -0,0 +1,72 @@
+/*
+ ******************************************************************************
+ Project:      OWA EPANET
+ Version:      2.2
+ Module:       demand.c
+ Description:  demand pattern list
+ Authors:      see AUTHORS
+ Copyright:    see AUTHORS
+ License:      see LICENSE
+ Last Updated: 04/12/2019
+ ******************************************************************************
+*/
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "demand.h"
+
+
+typedef struct demand_data_s
+{
+  double base_demand;
+  int    pattern_index;
+  char   *category_name;
+} demand_data_t;
+
+
+demand_data_t *create_demand_data(double base_demand, int pat_index, char *cat_name)
+{
+    demand_data_t *demand_data = (demand_data_t *)malloc(sizeof(demand_data_t));
+
+    demand_data->base_demand = base_demand;
+    demand_data->pattern_index = pat_index;
+
+    if (cat_name)
+        demand_data->category_name = strdup(cat_name);
+    else
+        demand_data->category_name = NULL;
+
+    return demand_data;
+}
+
+void delete_demand_data(void *data)
+{
+    demand_data_t *demand_data = *(demand_data_t **)data;
+
+    if (demand_data->category_name)
+        free(demand_data->category_name);
+
+	free(demand_data);
+}
+
+demand_data_t *get_demand_data(list_node_t *lnode)
+{
+    return *(demand_data_t **)get_data(lnode);
+}
+
+
+double get_base_demand(demand_data_t *data)
+{
+    return data->base_demand;
+}
+
+int get_pattern_index(demand_data_t *data)
+{
+    return data->pattern_index;
+}
+
+char *get_category_name(demand_data_t *data)
+{
+    return data->category_name;
+}