Initial Commit

OU4/src/array_1d/array_1d_mwe2.c

@@ -0,0 +1,67 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <array_1d.h>
+
+/*
+ * Minimum working example 2 for array_1d.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 simpler, shorter versions.
+ *   v1.2  2023-01-14: Added printouts at start/end of main.
+ *   v1.3  2024-03-13: Added explicit create/kill functions.
+ */
+
+#define VERSION "v1.3"
+#define VERSION_DATE "2024-03-13"
+
+// 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 integer array with kill_function.\n",
+           __FILE__, VERSION, VERSION_DATE);
+    printf("Code base version %s (%s).\n\n", CODE_BASE_VERSION, CODE_BASE_RELEASE_DATE);
+
+    // Create an array with 6 positions.
+    array_1d *a = array_1d_create(1, 6, int_kill);
+
+    for (int i=array_1d_low(a); i<=array_1d_high(a); i++) {
+        // Allocate memory for an integer.
+        int *v=int_create(i * i);
+        array_1d_set_value(a, v, i);
+    }
+    printf("Array after inserting i^2, i=1,...,6:\n");
+    array_1d_print(a, print_int);
+
+    array_1d_kill(a);
+
+    printf("\nNormal exit.\n\n");
+    return 0;
+}