| 1 | // [License]
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| 2 | // The Ariba-Underlay Copyright
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| 3 | //
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| 4 | // Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
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| 5 | //
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| 6 | // Institute of Telematics
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| 7 | // UniversitÀt Karlsruhe (TH)
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| 8 | // Zirkel 2, 76128 Karlsruhe
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| 9 | // Germany
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| 10 | //
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| 11 | // Redistribution and use in source and binary forms, with or without
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| 12 | // modification, are permitted provided that the following conditions are
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| 13 | // met:
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| 14 | //
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| 15 | // 1. Redistributions of source code must retain the above copyright
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| 16 | // notice, this list of conditions and the following disclaimer.
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| 17 | // 2. Redistributions in binary form must reproduce the above copyright
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| 18 | // notice, this list of conditions and the following disclaimer in the
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| 19 | // documentation and/or other materials provided with the distribution.
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| 20 | //
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| 21 | // THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
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| 22 | // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 24 | // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
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| 25 | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 26 | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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| 27 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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| 28 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 29 | // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 30 | // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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| 31 | // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 32 | //
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| 33 | // The views and conclusions contained in the software and documentation
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| 34 | // are those of the authors and should not be interpreted as representing
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| 35 | // official policies, either expressed or implied, of the Institute of
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| 36 | // Telematics.
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| 37 | // [License]
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| 38 |
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| 39 | #ifndef UTILITIES_HPP_
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| 40 | #define UTILITIES_HPP_
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| 41 |
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| 42 | #include "ariba/config.h"
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| 43 | #include <boost/cstdint.hpp>
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| 44 | #include <boost/type_traits.hpp>
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| 45 | #include <boost/utility/enable_if.hpp>
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| 46 |
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| 47 | /* force inline macro */
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| 48 | #ifndef finline
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| 49 | #ifdef HAVE_MAEMO
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| 50 | #define finline inline
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| 51 | #else
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| 52 | #define finline inline __attribute__((always_inline))
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| 53 | #endif
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| 54 | #endif
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| 55 |
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| 56 | /* check whether X is a base class of Y */
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| 57 | #define if_is_base_of(X,Y) \
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| 58 | typename boost::enable_if<boost::is_base_of<X, Y> , int>::type __v = 0
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| 59 |
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| 60 | /* check whether X is a unsigned integer */
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| 61 | #define if_uint(X) \
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| 62 | typename boost::enable_if<boost::is_integral<X>,int>::type __i##X = 0,\
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| 63 | typename boost::enable_if<boost::is_unsigned<X>,int>::type __u##X = 0
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| 64 |
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| 65 | /* check whether X is a signed integer */
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| 66 | #define if_int(X) \
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| 67 | typename boost::enable_if<boost::is_integral<X>,void*>::type __i##X = NULL,\
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| 68 | typename boost::enable_if<boost::is_signed<X>,void*>::type __s##X = NULL
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| 69 |
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| 70 | /* signature conversion */
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| 71 | #define CONVERT_SIGN(X,Y) \
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| 72 | finline X& _unsigned( Y& v ) { return *((X*)&v); } \
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| 73 | finline X& _unsigned( X& v ) { return v; } \
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| 74 | finline Y& _signed( X& v ) { return *((Y*)&v); } \
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| 75 | finline Y& _signed( Y& v ) { return v; }
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| 76 |
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| 77 | CONVERT_SIGN( uint8_t, int8_t );
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| 78 | CONVERT_SIGN( uint16_t, int16_t );
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| 79 | CONVERT_SIGN( uint32_t, int32_t );
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| 80 | CONVERT_SIGN( uint64_t, int64_t );
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| 81 |
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| 82 | #endif /* UTILITIES_HPP_ */
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