1  // [License]


2  // The AribaUnderlay Copyright


3  //


4  // Copyright (c) 20082009, Institute of Telematics, UniversitÃ€t Karlsruhe (TH)


5  //


6  // Institute of Telematics


7  // UniversitÃ€t Karlsruhe (TH)


8  // Zirkel 2, 76128 Karlsruhe


9  // Germany


10  //


11  // Redistribution and use in source and binary forms, with or without


12  // modification, are permitted provided that the following conditions are


13  // met:


14  //


15  // 1. Redistributions of source code must retain the above copyright


16  // notice, this list of conditions and the following disclaimer.


17  // 2. Redistributions in binary form must reproduce the above copyright


18  // notice, this list of conditions and the following disclaimer in the


19  // documentation and/or other materials provided with the distribution.


20  //


21  // THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND


22  // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE


23  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR


24  // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR


25  // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,


26  // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,


27  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR


28  // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF


29  // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING


30  // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS


31  // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


32  //


33  // The views and conclusions contained in the software and documentation


34  // are those of the authors and should not be interpreted as representing


35  // official policies, either expressed or implied, of the Institute of


36  // Telematics.


37  // [License]


38 


39  #ifndef UTILITIES_HPP_


40  #define UTILITIES_HPP_


41 


42  #include <boost/cstdint.hpp>


43  #include <boost/type_traits.hpp>


44  #include <boost/utility/enable_if.hpp>


45 


46  /* force inline macro */


47  #ifndef finline


48  #define finline inline __attribute__((always_inline))


49  #endif


50 


51  /* check whether X is a base class of Y */


52  #define if_is_base_of(X,Y) \


53  typename boost::enable_if<boost::is_base_of<X, Y> , int>::type __v = 0


54 


55  /* check whether X is a unsigned integer */


56  #define if_uint(X) \


57  typename boost::enable_if<boost::is_integral<X>,int>::type __i##X = 0,\


58  typename boost::enable_if<boost::is_unsigned<X>,int>::type __u##X = 0


59 


60  /* check whether X is a signed integer */


61  #define if_int(X) \


62  typename boost::enable_if<boost::is_integral<X>,void*>::type __i##X = NULL,\


63  typename boost::enable_if<boost::is_signed<X>,void*>::type __s##X = NULL


64 


65  /* signature conversion */


66  #define CONVERT_SIGN(X,Y) \


67  finline X& _unsigned( Y& v ) { return *((X*)&v); } \


68  finline X& _unsigned( X& v ) { return v; } \


69  finline Y& _signed( X& v ) { return *((Y*)&v); } \


70  finline Y& _signed( Y& v ) { return v; }


71 


72  CONVERT_SIGN( uint8_t, int8_t );


73  CONVERT_SIGN( uint16_t, int16_t );


74  CONVERT_SIGN( uint32_t, int32_t );


75  CONVERT_SIGN( uint64_t, int64_t );


76 


77  #endif /* UTILITIES_HPP_ */

