1 files changed, 19 insertions, 0 deletions
diff --git a/src/libstddjb/uint64_fmt.c b/src/libstddjb/uint64_fmt.c
new file mode 100644
index 0000000..cbe3382
--- /dev/null
+++ b/src/libstddjb/uint64_fmt.c
@@ -0,0 +1,19 @@
+/* ISC license. */
+
+#include <skalibs/uint64.h>
+#include <skalibs/fmtscan.h>
+
+unsigned int uint64_fmt_base (char *s, uint64 x, unsigned char base)
+{
+  register unsigned int len = 1 ;
+  {
+    register uint64 q = x ;
+    while (q >= base) { len++ ; q /= base ; }
+  }
+  if (s)
+  {
+    s += len ;
+    do { *--s = fmtscan_asc(x % base) ; x /= base ; } while (x) ;
+  }
+  return len ;
+}