1 files changed, 74 insertions, 0 deletions
diff --git a/test/gourdinl/c/array2.c b/test/gourdinl/c/array2.c
new file mode 100644
index 00000000..389e1596
--- /dev/null
+++ b/test/gourdinl/c/array2.c
@@ -0,0 +1,74 @@
+/* array2.c -- Read/writing/reversing integer arrays
+ */
+
+#include <stdio.h>
+
+#define NMAX 10
+
+void intSwap(int *x, int *y);
+int getIntArray(int a[], int nmax, int sentinel);
+void printIntArray(int a[], int n);
+void reverseIntArray(int a[], int n);
+
+int main(void) {
+  int x[NMAX];
+  int hmny;
+
+  hmny = getIntArray(x, NMAX, 0);
+  printf("The array was: \n");
+  printIntArray(x,hmny);
+  reverseIntArray(x,hmny);
+  printf("after reverse it is:\n");
+  printIntArray(x,hmny);
+}
+
+void intSwap(int *x, int *y)
+     /* It swaps the content of x and y */
+{
+  int temp = *x;
+  *x = *y;
+  *y = temp;
+}
+
+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;
+}
+
+void reverseIntArray(int a[], int n)
+     /* It reverse the order of the first n elements of a */
+{
+  int i;
+
+  for(i=0;i<n/2;i++){
+    intSwap(&a[i],&a[n-i-1]);
+  }
+}