[Octave-cvsupdate] SF.net SVN: octave:[10320] trunk/octave-forge/extra/NaN/src/xptopen.cpp

[<sch...@us...>]

Revision: 10320
          http://octave.svn.sourceforge.net/octave/?rev=10320&view=rev
Author:   schloegl
Date:     2012-04-24 07:58:12 +0000 (Tue, 24 Apr 2012)
Log Message:
-----------
better platform checks

Modified Paths:
--------------
    trunk/octave-forge/extra/NaN/src/xptopen.cpp

Modified: trunk/octave-forge/extra/NaN/src/xptopen.cpp
===================================================================
--- trunk/octave-forge/extra/NaN/src/xptopen.cpp	2012-04-24 07:23:15 UTC (rev 10319)
+++ trunk/octave-forge/extra/NaN/src/xptopen.cpp	2012-04-24 07:58:12 UTC (rev 10320)
@@ -72,12 +72,15 @@
 #define max(a,b)	(((a) > (b)) ? (a) : (b))
 #define min(a,b)	(((a) < (b)) ? (a) : (b))
 
+
 #if 0
 
 #elif defined(__linux__) 
+#  include <endian.h>
 #  include <byteswap.h>
 
 #elif defined(__GLIBC__)	// for Hurd
+#  include <endian.h>
 #  include <byteswap.h>
 
 #elif defined(__MINGW32__) 
@@ -130,8 +133,11 @@
 #  define __LITTLE_ENDIAN  	1234
 #  define __BYTE_ORDER 	__BIG_ENDIAN
 
+#else
+#  error Unknown platform
 #endif 
 
+#if defined(__MINGW32__) || defined(__sparc__) 
 
 # ifndef bswap_16
 #  define bswap_16(x)   \
@@ -159,7 +165,18 @@
       	| (((x) & 0x00000000000000ffull) << 56))
 # endif
 
+#endif
 
+
+#if !defined(__BIG_ENDIAN) && !defined(__LITTLE_ENDIAN) 
+#error  ENDIANITY is not known 
+#endif 
+
+#if !defined(bswap_16) || !defined(bswap_32) || !defined(bswap_64)
+#error SWAP operation not available 
+#endif 
+
+
 #if __BYTE_ORDER == __BIG_ENDIAN
 #define l_endian_u16(x) ((uint16_t)bswap_16((uint16_t)(x)))
 #define l_endian_u32(x) ((uint32_t)bswap_32((uint32_t)(x)))

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