From 20b8bd9b454a511e25165dc285e527355be6ebb6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Wed, 16 Jan 2002 20:58:41 +0100
Subject: [PATCH] (READ_UINT24, WRITE_UINT24, READ_UINT16, WRITE_UINT16): New
macros.
Rev: src/nettle/macros.h:1.6
---
macros.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/macros.h b/macros.h
index c235600a..89400c54 100644
--- a/macros.h
+++ b/macros.h
@@ -40,6 +40,29 @@ do { \
(p)[3] = (i) & 0xff; \
} while(0)
+/* Analogous macros, for 24 and 16 bit numbers */
+#define READ_UINT24(p) \
+( (((uint32_t) (p)[0]) << 16) \
+ | (((uint32_t) (p)[1]) << 8) \
+ | ((uint32_t) (p)[2]))
+
+#define WRITE_UINT24(p, i) \
+do { \
+ (p)[0] = ((i) >> 16) & 0xff; \
+ (p)[1] = ((i) >> 8) & 0xff; \
+ (p)[2] = (i) & 0xff; \
+} while(0)
+
+#define READ_UINT16(p) \
+( (((uint32_t) (p)[0]) << 8) \
+ | ((uint32_t) (p)[1]))
+
+#define WRITE_UINT16(p, i) \
+do { \
+ (p)[0] = ((i) >> 8) & 0xff; \
+ (p)[1] = (i) & 0xff; \
+} while(0)
+
/* And the other, little-endian, byteorder */
#define LE_READ_UINT32(p) \
( (((uint32_t) (p)[3]) << 24) \
--
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