From ffcdc8c6d2ea0730de2291f352571418a537a155 Mon Sep 17 00:00:00 2001
From: Simon Josefsson <simon@josefsson.org>
Date: Tue, 24 Aug 2004 16:29:00 +0200
Subject: [PATCH] (LE_READ_UINT16, LE_WRITE_UINT16): New macros.
Rev: src/nettle/macros.h:1.7
---
macros.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/macros.h b/macros.h
index 89400c54..52876976 100644
--- a/macros.h
+++ b/macros.h
@@ -78,6 +78,17 @@ do { \
(p)[0] = (i) & 0xff; \
} while(0)
+/* Analogous macros, for 16 bit numbers */
+#define LE_READ_UINT16(p) \
+ ( (((uint32_t) (p)[1]) << 8) \
+ | ((uint32_t) (p)[0]))
+
+#define LE_WRITE_UINT16(p, i) \
+ do { \
+ (p)[1] = ((i) >> 8) & 0xff; \
+ (p)[0] = (i) & 0xff; \
+ } while(0)
+
/* Macro to make it easier to loop over several blocks. */
#define FOR_BLOCKS(length, dst, src, blocksize) \
assert( !((length) % (blocksize))); \
--
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