00001 // [License] 00002 // The Ariba-Underlay Copyright 00003 // 00004 // Copyright (c) 2008-2009, Institute of Telematics, Universität Karlsruhe (TH) 00005 // 00006 // Institute of Telematics 00007 // Universität Karlsruhe (TH) 00008 // Zirkel 2, 76128 Karlsruhe 00009 // Germany 00010 // 00011 // Redistribution and use in source and binary forms, with or without 00012 // modification, are permitted provided that the following conditions are 00013 // met: 00014 // 00015 // 1. Redistributions of source code must retain the above copyright 00016 // notice, this list of conditions and the following disclaimer. 00017 // 2. Redistributions in binary form must reproduce the above copyright 00018 // notice, this list of conditions and the following disclaimer in the 00019 // documentation and/or other materials provided with the distribution. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND 00022 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00023 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00024 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR 00025 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00026 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00027 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00028 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00029 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00030 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00031 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00032 // 00033 // The views and conclusions contained in the software and documentation 00034 // are those of the authors and should not be interpreted as representing 00035 // official policies, either expressed or implied, of the Institute of 00036 // Telematics. 00037 // [License] 00038 00039 #ifndef UTILITIES_HPP_ 00040 #define UTILITIES_HPP_ 00041 00042 #include <boost/cstdint.hpp> 00043 #include <boost/type_traits.hpp> 00044 #include <boost/utility/enable_if.hpp> 00045 00046 /* force inline macro */ 00047 #ifndef finline 00048 #define finline inline __attribute__((always_inline)) 00049 #endif 00050 00051 /* check whether X is a base class of Y */ 00052 #define if_is_base_of(X,Y) \ 00053 typename boost::enable_if<boost::is_base_of<X, Y> , int>::type __v = 0 00054 00055 /* check whether X is a unsigned integer */ 00056 #define if_uint(X) \ 00057 typename boost::enable_if<boost::is_integral<X>,int>::type __i##X = 0,\ 00058 typename boost::enable_if<boost::is_unsigned<X>,int>::type __u##X = 0 00059 00060 /* check whether X is a signed integer */ 00061 #define if_int(X) \ 00062 typename boost::enable_if<boost::is_integral<X>,void*>::type __i##X = NULL,\ 00063 typename boost::enable_if<boost::is_signed<X>,void*>::type __s##X = NULL 00064 00065 /* signature conversion */ 00066 #define CONVERT_SIGN(X,Y) \ 00067 finline X& _unsigned( Y& v ) { return *((X*)&v); } \ 00068 finline X& _unsigned( X& v ) { return v; } \ 00069 finline Y& _signed( X& v ) { return *((Y*)&v); } \ 00070 finline Y& _signed( Y& v ) { return v; } 00071 00072 CONVERT_SIGN( uint8_t, int8_t ); 00073 CONVERT_SIGN( uint16_t, int16_t ); 00074 CONVERT_SIGN( uint32_t, int32_t ); 00075 CONVERT_SIGN( uint64_t, int64_t ); 00076 00077 #endif /* UTILITIES_HPP_ */