1 files changed, 17 insertions, 0 deletions
diff --git a/src/libstddjb/uint64_unpack.c b/src/libstddjb/uint64_unpack.c
new file mode 100644
index 0000000..e0561d9
--- /dev/null
+++ b/src/libstddjb/uint64_unpack.c
@@ -0,0 +1,17 @@
+/* ISC license. */
+
+#include <skalibs/uint64.h>
+#include <skalibs/bytestr.h>
+
+void uint64_unpack (char const *s, uint64 *u)
+{
+  uint64 r = T8((unsigned char)s[7]) ; r <<= 8 ;
+  r += T8((unsigned char)s[6]) ; r <<= 8 ;
+  r += T8((unsigned char)s[5]) ; r <<= 8 ;
+  r += T8((unsigned char)s[4]) ; r <<= 8 ;
+  r += T8((unsigned char)s[3]) ; r <<= 8 ;
+  r += T8((unsigned char)s[2]) ; r <<= 8 ;
+  r += T8((unsigned char)s[1]) ; r <<= 8 ;
+  r += T8((unsigned char)s[0]) ;
+  *u = r ;
+}