1 files changed, 40 insertions, 0 deletions
diff --git a/contrib/top/prime.c b/contrib/top/prime.c
new file mode 100644
index 0000000..319d0b6
--- /dev/null
+++ b/contrib/top/prime.c
@@ -0,0 +1,40 @@
+/*
+ * Prime number generator.  It prints on stdout the next prime number
+ * higher than the number specified as argv[1].
+ */
+
+#include <math.h>
+
+main(argc, argv)
+
+int argc;
+char *argv[];
+
+{
+    double i, j;
+    int f;
+
+    if (argc < 2)
+    {
+	exit(1);
+    }
+
+    i = atoi(argv[1]);
+    while (i++)
+    {
+	f=1;
+	for (j=2; j<i; j++)
+	{
+	    if ((i/j)==floor(i/j))
+	    {
+		f=0;
+		break;
+	    }
+	}
+	if (f)
+	{
+	    printf("%.0f\n", i);
+	    exit(0);
+	}
+    }
+}