1 files changed, 10 insertions, 0 deletions
diff --git a/src/libstddjb/uint640_fmt.c b/src/libstddjb/uint640_fmt.c
new file mode 100644
index 0000000..7153055
--- /dev/null
+++ b/src/libstddjb/uint640_fmt.c
@@ -0,0 +1,10 @@
+/* ISC license. */
+
+#include <skalibs/uint64.h>
+
+unsigned int uint640_fmt_base (char *s, uint64 x, register unsigned int n, unsigned char base)
+{
+  register unsigned int len = uint64_fmt_base(0, x, base) ;
+  while (n-- > len) *s++ = '0' ;
+  return uint64_fmt_base(s, x, base) ;
+}