Go to the documentation of this file.00001 #ifndef FWCore_Utilities_Likely_h
00002 #define FWCore_Utilities_Likely_h
00003 #include "FWCore/Utilities/interface/GCCPrerequisite.h"
00004
00005 #if GCC_PREREQUISITE(3,0,0)
00006
00007 #if defined(NO_LIKELY)
00008 #define likely(x) (x)
00009 #define unlikely(x) (x)
00010 #elif defined(REVERSE_LIKELY)
00011 #define unlikely(x) (__builtin_expect(x, true))
00012 #define likely(x) (__builtin_expect(x, false))
00013 #else
00014 #define likely(x) (__builtin_expect(x, true))
00015 #define unlikely(x) (__builtin_expect(x, false))
00016 #endif
00017
00018 #else
00019 #define NO_LIKELY
00020 #define likely(x) (x)
00021 #define unlikely(x) (x)
00022 #endif
00023
00024 #endif
1.7.3