Changes to file structure for VSCode and bug fixes

LC17/DynamicFunction/DynamicFunction.c

@@ -0,0 +1,81 @@
+/* An example of
+
+	Creating dynamically an array
+	Populating the array
+	Displaying the contents
+	Freeing up the memory
+
+	Version 4 : Check memory has been assigned
+		    Read and Write values using pointers
+		    Pass array data to a function
+
+
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+
+int Sum ( int *Data, int n )	/* Define our function 			*/
+{
+    int Sum = 0,i;		/* Define working variables 		*/
+
+    for ( i = 0 ; i < n ; i++ )
+    {
+        printf("Item %d=%d\n", i, Data[i]);
+        Sum += Data[i];		/* This means   Sum = Sum + Data[i] 	*/
+    }
+
+
+    return Sum;			/* Return the value			*/
+
+}
+int main(void)
+{
+    int *ipArray = NULL;		/* Create the pointer and set   */
+    /* to null to start with 	*/
+
+    int *ipStartValue = NULL;	/* A place to store ipArray's   */
+    /* initial value ,ie ipArray[0] */
+    int iSize = 0;		/* Define our 'size' variable 	*/
+
+    int i;			/* A Loop variables 	        */
+
+    /* Prompt for array size */
+
+    printf("\nHow big is the array to be ? ");
+    scanf("%d",&iSize);
+
+    /* Allocate the memory */
+    ipArray = (int *)calloc(iSize, sizeof(int));
+
+    if ( ipArray == NULL )
+    {
+        printf("\nUnable to allocate the memory requested");
+        printf("\n  ** Program terminating ** \n");
+        exit (1);
+    }
+
+    /* Store the base memory address for use later */
+    ipStartValue = ipArray;
+
+    /* Populate the array ( Use Pointers: This is much faster !) */
+    for ( i = 0 ; i < iSize ; i++ )
+        *ipArray++ = i;
+        
+    // Reset ipArray to start
+    ipArray = ipStartValue;
+    /* Display the sum of the values in the array */
+
+    printf("\nThe sum of the array values is %d ",Sum(ipArray,iSize) );
+
+    /* free memory : Again, reset ipArray to its origin */
+
+    ipArray = ipStartValue;
+    free(ipArray);
+
+    /* The above two lines could be replaced with    free (ipStartValue)   */
+
+    return 0;
+}
+