1 files changed, 15 insertions, 0 deletions

diff --git a/fmt_ulong.c b/fmt_ulong.c
new file mode 100644
index 0000000..168572f
--- /dev/null
+++ b/fmt_ulong.c
@@ -0,0 +1,15 @@
+/* Public domain. */
+
+#include "fmt.h"
+
+unsigned int fmt_ulong(register char *s,register unsigned long u)
+{
+  register unsigned int len; register unsigned long q;
+  len = 1; q = u;
+  while (q > 9) { ++len; q /= 10; }
+  if (s) {
+    s += len;
+    do { *--s = '0' + (u % 10); u /= 10; } while(u); /* handles u == 0 */
+  }
+  return len;
+}