1 files changed, 108 insertions, 0 deletions
diff --git a/test/gourdinl/c/cpintarray.c b/test/gourdinl/c/cpintarray.c
new file mode 100644
index 00000000..8049fdfb
--- /dev/null
+++ b/test/gourdinl/c/cpintarray.c
@@ -0,0 +1,108 @@
+/* cpintarray.c -- Example showing how addresses and arrays are alike
+ */
+
+#include <stdio.h>
+#define SIZE 8
+
+void cpIntArray(int *a, int *b, int n)
+/*It copies n integers starting at b into a*/
+{
+  for(;n>0;n--)
+    *a++=*b++;
+}
+
+
+void printIntArray(int a[], int n)
+     /* n is the number of elements in the array a.
+      * These values are printed out, five per line. */
+{
+  int i;
+
+  for (i=0; i<n; ){
+    printf("\t%d ", a[i++]);
+    if (i%5==0)
+      printf("\n");
+  }
+  printf("\n");
+}
+
+int getIntArray(int a[], int nmax, int sentinel)
+     /* It reads up to nmax integers and stores then in a; sentinel 
+      * terminates input. */
+{
+  int n = 0;
+  int temp;
+
+  do {
+    printf("Enter integer [%d to terminate] : ", sentinel);
+    scanf("%d", &temp);
+    if (temp==sentinel) break;
+    if (n==nmax)
+      printf("array is full\n");
+    else 
+      a[n++] = temp;
+  }while (1);
+  return n;
+}
+
+int main(void){
+  int x[SIZE], nx;
+  int y[SIZE], ny;
+
+  printf("Read the x array:\n");
+  nx = getIntArray(x,SIZE,0);
+  printf("The x array is:\n");
+  printIntArray(x,nx);
+
+  printf("Read the y array:\n");
+  ny = getIntArray(y,SIZE,0);
+  printf("The y array is:\n");
+  printIntArray(y,ny);
+
+  cpIntArray(x+2,y+3,4);
+  /*Notice the expression 'x+2'. x is interpreted as the address for
+    the beginning of the x array. +2 sais to increment that address
+    by two units, in accordance with the type of x, which is
+    an integer array. Thus we move from x to two integer locations
+    past it, that is to the location of x[2]. The same reasoning applied
+    to 'y+3'.
+    */
+  printf("Printing x after having copied 4 elements\n"
+         "from y starting at y[3] into x starting at x[2]\n");
+  printIntArray(x,nx);
+}
+
+/* Here is the interaction in a run of this program:
+
+Read the x array:
+Enter integer [0 to terminate] : 1
+Enter integer [0 to terminate] : 3
+Enter integer [0 to terminate] : 5
+Enter integer [0 to terminate] : 7
+Enter integer [0 to terminate] : 9
+Enter integer [0 to terminate] : 11
+Enter integer [0 to terminate] : 13
+Enter integer [0 to terminate] : 15
+Enter integer [0 to terminate] : 0
+The x array is:
+	1 	3 	5 	7 	9 
+	11 	13 	15 
+Read the y array:
+Enter integer [0 to terminate] : 2
+Enter integer [0 to terminate] : 4
+Enter integer [0 to terminate] : 6
+Enter integer [0 to terminate] : 8
+Enter integer [0 to terminate] : 10
+Enter integer [0 to terminate] : 12
+Enter integer [0 to terminate] : 14
+Enter integer [0 to terminate] : 16
+Enter integer [0 to terminate] : 0
+The y array is:
+	2 	4 	6 	8 	10 
+	12 	14 	16 
+Printing x after having copied 4 elements
+from y starting at y[3] into x starting at x[2]
+	1 	3 	8 	10 	12 
+	14 	13 	15 
+
+ */