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authorLaurent Bercot <ska-skaware@skarnet.org>2017-10-18 16:13:24 +0000
committerLaurent Bercot <ska-skaware@skarnet.org>2017-10-18 16:13:24 +0000
commit45923c08b00ccdfd888caf6d2b555a137c563988 (patch)
tree5dc167cf4b8e3ff372f59ca9fb6ba0940387c83c /src/libstddjb/uint64_pack_big.c
parent62a04cdd0b6811c07bbafae37fe906a36fa800b1 (diff)
downloadskalibs-45923c08b00ccdfd888caf6d2b555a137c563988.tar.xz
Better packing / unpacking code
Godbolted for x86_64 with gcc and clang.
Diffstat (limited to 'src/libstddjb/uint64_pack_big.c')
-rw-r--r--src/libstddjb/uint64_pack_big.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/src/libstddjb/uint64_pack_big.c b/src/libstddjb/uint64_pack_big.c
index 381f105..c0bbcd7 100644
--- a/src/libstddjb/uint64_pack_big.c
+++ b/src/libstddjb/uint64_pack_big.c
@@ -1,16 +1,10 @@
/* ISC license. */
+#include <string.h>
#include <skalibs/uint64.h>
-#include <skalibs/bytestr.h>
void uint64_pack_big (char *s, uint64_t u)
{
- ((unsigned char *)s)[7] = T8(u) ; u >>= 8 ;
- ((unsigned char *)s)[6] = T8(u) ; u >>= 8 ;
- ((unsigned char *)s)[5] = T8(u) ; u >>= 8 ;
- ((unsigned char *)s)[4] = T8(u) ; u >>= 8 ;
- ((unsigned char *)s)[3] = T8(u) ; u >>= 8 ;
- ((unsigned char *)s)[2] = T8(u) ; u >>= 8 ;
- ((unsigned char *)s)[1] = T8(u) ; u >>= 8 ;
- ((unsigned char *)s)[0] = T8(u) ;
+ u = uint64_big(u) ;
+ memcpy(s, &u, sizeof(uint64_t)) ;
}