source: source/ariba/utility/internal/Utilities.hpp@ 7026

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// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
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// [License]

#ifndef UTILITIES_HPP_
#define UTILITIES_HPP_

#include <boost/cstdint.hpp>
#include <boost/type_traits.hpp>
#include <boost/utility/enable_if.hpp>

/* force inline macro */
#ifndef finline
#define finline inline __attribute__((always_inline))
#endif

/* check whether X is a base class of Y */
#define if_is_base_of(X,Y) \
        typename boost::enable_if<boost::is_base_of<X, Y> , int>::type __v = 0

/* check whether X is a unsigned integer */
#define if_uint(X) \
        typename boost::enable_if<boost::is_integral<X>,int>::type __i##X = 0,\
        typename boost::enable_if<boost::is_unsigned<X>,int>::type __u##X = 0

/* check whether X is a signed integer */
#define if_int(X) \
        typename boost::enable_if<boost::is_integral<X>,void*>::type __i##X = NULL,\
        typename boost::enable_if<boost::is_signed<X>,void*>::type __s##X = NULL

/* signature conversion */
#define CONVERT_SIGN(X,Y) \
        finline X& _unsigned( Y& v ) { return *((X*)&v); } \
        finline X& _unsigned( X& v ) { return v; } \
        finline Y& _signed( X& v ) { return *((Y*)&v); } \
        finline Y& _signed( Y& v ) { return v; }

CONVERT_SIGN( uint8_t, int8_t );
CONVERT_SIGN( uint16_t, int16_t );
CONVERT_SIGN( uint32_t, int32_t );
CONVERT_SIGN( uint64_t, int64_t );

#endif /* UTILITIES_HPP_ */