Update gcd.c

1 files changed, 16 insertions, 20 deletions

diff --git a/gcd.c b/gcd.c
index 227be89..5fa3840 100644
--- a/gcd.c
+++ b/gcd.c
@@ -1,10 +1,10 @@
 #include <stdlib.h>
 #include <stdio.h>
 
-static unsigned long int
-gcd2 (unsigned long int a, unsigned long int b)
+static unsigned long
+gcd2 (unsigned long a, unsigned long b)
 {
-  unsigned long int c;
+  unsigned long c;
   while (b != 0)
     {
       c = b;
@@ -14,16 +14,14 @@ gcd2 (unsigned long int a, unsigned long int b)
   return a;
 }
 
-static unsigned long int
-gcdn (unsigned long int *a, size_t n)
+static unsigned long
+gcdn (const unsigned long *a, size_t n)
 {
-  unsigned long int r;
+  unsigned long r;
   size_t i;
   r = a[0];
   for (i = 1; i < n; i++)
-    {
-      r = gcd2 (r, a[i]);
-    }
+    r = gcd2 (r, a[i]);
   return r;
 }
 
@@ -31,22 +29,20 @@ gcdn (unsigned long int *a, size_t n)
 int
 main (int argc, char *argv[])
 {
-  unsigned long int *a;
+  unsigned long *a;
   size_t i, n;
 
   if (argc > 1)
     {
       n = (size_t) (argc - 1);
-      a = (unsigned long int *) malloc (sizeof (unsigned long int) * n);
-      if (NULL != a)
-        {
-          for (i = 1; i <= n; i++)
-            a[i - 1] = strtoul (argv[i], NULL, 10);
-          printf ("%lu\n", gcdn (a, n));
-          free (a);
-          return EXIT_SUCCESS;
-        }
-      return EXIT_FAILURE;
+      a = (unsigned long *) malloc (n * sizeof (unsigned long));
+      if (!a)
+        return EXIT_FAILURE;
+
+      for (i = 1; i <= n; i++)
+        a[i - 1] = strtoul (argv[i], NULL, 10);
+      printf ("%lu\n", gcdn (a, n));
+      free (a);
     }
   return EXIT_SUCCESS;
 }