ICU 4.8 4.8
LESwaps.h
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00001 /*
00002  *
00003  * (C) Copyright IBM Corp. 1998-2010 - All Rights Reserved
00004  *
00005  */
00006 
00007 #ifndef __LESWAPS_H
00008 #define __LESWAPS_H
00009 
00010 #include "LETypes.h"
00011 
00017 U_NAMESPACE_BEGIN
00018 
00025 #define SWAPW(value) LESwaps::swapWord((le_uint16)(value))
00026 
00033 #define SWAPL(value) LESwaps::swapLong((le_uint32)(value))
00034 
00044 class U_LAYOUT_API LESwaps /* not : public UObject because all methods are static */ {
00045 public:
00046 
00057     static le_uint16 swapWord(le_uint16 value)
00058     {
00059         return (le_uint16)((value << 8) | (value >> 8));
00060     };
00061 
00072     static le_uint32 swapLong(le_uint32 value)
00073     {
00074         return (le_uint32)(
00075             (value << 24) |
00076             ((value << 8) & 0xff0000) |
00077             ((value >> 8) & 0xff00) |
00078             (value >> 24));
00079     };
00080 
00081 private:
00082     LESwaps() {} // private - forbid instantiation
00083 };
00084 
00085 U_NAMESPACE_END
00086 #endif
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