1 files changed, 16 insertions, 0 deletions

diff --git a/scan_ulong.c b/scan_ulong.c
new file mode 100644
index 0000000..af19701
--- /dev/null
+++ b/scan_ulong.c
@@ -0,0 +1,16 @@
+/* Public domain. */
+
+#include "scan.h"
+
+unsigned int scan_ulong(register const char *s,register unsigned long *u)
+{
+  register unsigned int pos = 0;
+  register unsigned long result = 0;
+  register unsigned long c;
+  while ((c = (unsigned long) (unsigned char) (s[pos] - '0')) < 10) {
+    result = result * 10 + c;
+    ++pos;
+  }
+  *u = result;
+  return pos;
+}