Release BACnet Protocol Stack 0.3.0

2007-02-23 13:19:57 +00:00
parent 6c5b409dcf
commit 63e18a0f1f
315 changed files with 57198 additions and 0 deletions
@@ -0,0 +1,28 @@
+/* Big-Endian systems save the most significant byte first.  */
+/* Sun and Motorola processors, IBM-370s and PDP-10s are big-endian. */
+/* "Network Byte Order" is also know as "Big-Endian Byte Order" */
+/* for example, a 4 byte integer 67305985 is 0x04030201 in hexidecimal. */
+/* x[0] = 0x04 */
+/* x[1] = 0x03 */
+/* x[2] = 0x02 */
+/* x[3] = 0x01 */
+
+/* Little-Endian systems save the least significant byte first.  */
+/* The entire Intel x86 family, Vaxes, Alphas and PDP-11s are little-endian. */
+/* for example, a 4 byte integer 67305985 is 0x04030201 in hexidecimal. */
+/* x[0] = 0x01 */
+/* x[1] = 0x02 */
+/* x[2] = 0x03 */
+/* x[3] = 0x04 */
+
+int big_endian(void)
+{
+    union {
+        long l;
+        char c[sizeof(long)];
+    } u;
+
+    u.l = 1;
+
+    return (u.c[sizeof(long) - 1] == 1);
+}