Initial Commit

OU1/datastructures-v2.2.2.2/src/array_2d/array_2d_mwe1.c

@@ -0,0 +1,77 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <array_2d.h>
+
+/*
+ * Minimum working example for array_2d.c.
+ *
+ * Authors: Niclas Borlin (niclas@cs.umu.se)
+ *
+ * Version information:
+ *   v1.0  2018-01-28: First public version.
+ *   v1.1  2018-04-03: Split into versions with/without memhandler.
+ *   v1.2  2023-01-14: Added printouts at start/end of main.
+ */
+
+#define VERSION "v1.2"
+#define VERSION_DATE "2023-01-14"
+
+// Integers are stored via int pointers stored as void pointers.
+// Convert the given pointer and print the dereferenced value.
+void print_int(const void *data)
+{
+    const int *v = data;
+    printf("%d", *v);
+}
+
+// Create a dynamic copy of the integer i.
+int *int_create(int i)
+{
+    // Allocate memory for an integer and set the value
+    int *v = malloc(sizeof(*v));
+    *v = i;
+    return v;
+}
+
+// Return the memory used by the integer.
+void int_kill(void *v)
+{
+    int *p = v;
+    free(p);
+}
+
+int main(void)
+{
+    printf("%s, %s %s: Create 4-by-3 array of integers without kill function.\n",
+           __FILE__, VERSION, VERSION_DATE);
+    printf("Code base version %s (%s).\n\n", CODE_BASE_VERSION, CODE_BASE_RELEASE_DATE);
+
+    // Create a 4-by-3 array.
+    array_2d *a = array_2d_create(1, 4, 1, 3, NULL);
+
+    for (int i = array_2d_low(a, 1); i <= array_2d_high(a, 1); i++) {
+        for (int j = array_2d_low(a, 2); j <= array_2d_high(a, 2); j++) {
+            // Allocate memory for an integer.
+            int *v=int_create(i * 10 + j);
+            array_2d_set_value(a, v, i, j);
+        }
+    }
+    printf("After filling the array with values:\n");
+    array_2d_print(a, print_int);
+
+    // Empty the array.
+    for (int i = array_2d_low(a, 1); i <= array_2d_high(a, 1); i++) {
+        for (int j = array_2d_low(a, 2); j <= array_2d_high(a, 2); j++) {
+            if (array_2d_has_value(a, i, j)) {
+                int *v=array_2d_inspect_value(a, i, j);
+                int_kill(v);
+            }
+        }
+    }
+    // Return remaining memory.
+    array_2d_kill(a);
+
+    printf("\nNormal exit.\n\n");
+    return 0;
+}