move exercises and lectures into subfolders

Exercises/C16/alloc_example_1.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+
+    // Declare an integer array and an integer pointer
+    int *pData;
+
+    // Using malloc
+    pData = malloc ( 10000 * sizeof (int));
+
+    // Using calloc
+    pData = calloc ( 10000 , sizeof (int));
+
+    return 0;   // Exit
+}

Exercises/C16/alloc_example_2.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+
+    // Declare an integer array and an integer pointer
+    int *pData;
+
+    pData = calloc ( 10000 , sizeof (float));           // No warning
+    pData = (float *)calloc ( 10000 , sizeof (float));  // Warning
+
+    return 0;   // Exit
+}

Exercises/C16/alloc_example_3.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+
+    // Declare an integer array and an integer pointer
+    int *pData;
+
+    // Using calloc (same approach malloc)
+    pData = calloc ( 10000 , sizeof (int));
+
+    if ( pData == NULL)
+    {
+        printf ("\nMemory could not be allocated - terminating");
+        return -1;  // Use minus one as we did not exit successfully
+    }
+    
+    // We have our  memory, make use of it here!
+    
+    return 0;   // Exit successfully
+}

Exercises/C16/alloc_example_4.c

@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+
+    // Declare an integer array and an integer pointer
+    int *pData;
+
+    // Using calloc (same approach malloc)
+    pData = calloc ( 10000 , sizeof (int));
+
+    if ( pData == NULL)
+    {
+        printf ("\nMemory could not be allocated - terminating");
+        return -1;  // Use minus one as we did not exit sucesfully
+    }
+
+     // We have our  memory, make use of it here!
+
+    // Free up the allocated memoey
+    free (pData);
+
+    return 0;   // Exit sucesfully
+}

Exercises/C16/ex2.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    // Declare an integer array and an integer pointer
+    int *pData;
+    int datlen;
+
+    printf("Length of data to be allocated: ");
+    scanf("%d", &datlen);
+
+    // Using malloc
+    pData = malloc ( datlen * sizeof (int));
+
+    free(pData);
+    return 0;   // Exit
+}

Exercises/C16/ex3.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    // Declare an integer array and an integer pointer
+    int *pData;
+    int datlen;
+
+    printf("Length of data to be allocated: ");
+    scanf("%d", &datlen);
+
+    // Using malloc
+    pData = malloc ( datlen * sizeof (int));
+
+    for (int i = 0; i < datlen; i++) {
+	    pData[i] = i;
+	    printf("%d %d\n", i, i);
+    }
+
+    free(pData);
+    return 0;   // Exit
+}