-//$$CDS-header$$
+/*
+ This file is a part of libcds - Concurrent Data Structures library
-#ifndef __CDS_OPT_HASH_H
-#define __CDS_OPT_HASH_H
+ (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2016
+
+ Source code repo: http://github.com/khizmax/libcds/
+ Download: http://sourceforge.net/projects/libcds/files/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef CDSLIB_OPT_HASH_H
+#define CDSLIB_OPT_HASH_H
#include <tuple>
+#include <functional>
#include <cds/opt/options.h>
-#include <cds/details/hash_functor_selector.h>
namespace cds { namespace opt {
The default value of template argument \p Functor is \p cds::opt::v::hash
that is synonym for <tt>std::hash</tt> implementation of standard library.
- If standard C++ library of the compiler you use does not provide TR1 implementation
- the \p cds library automatically selects <tt>boost::hash</tt>.
*/
template <typename Functor>
struct hash {
namespace v {
//@cond
- using cds::details::hash;
+ using std::hash;
/// Metafunction selecting default hash implementation
/**
The metafunction selects appropriate hash functor implementation.
If \p Hash is not equal to opt::none, then result of metafunction is \p Hash.
- Otherwise, the result is <tt> std::hash<Q> </tt> or <tt> boost::hash<Q> </tt>
- depending of compiler you use.
+ Otherwise, the result is <tt> std::hash<Q> </tt>.
- Note that default hash function like <tt> std::hash<Q> </tt> or <tt> boost::hash<Q> </tt>
+ Note that default hash function like <tt> std::hash<Q> </tt>
is generally not suitable for complex type \p Q and its derivatives.
You should manually provide particular hash functor for such types.
*/
template <typename Hash>
struct hash_selector
{
- typedef Hash type ; ///< resulting implementation of hash functor
+ typedef Hash type; ///< resulting implementation of hash functor
};
template <>
template <typename Q>
size_t operator()( Q const& key ) const
{
- return hash<Q>()( key );
+ return std::hash<Q>()( key );
}
};
};
{}
template <size_t I, typename T>
- typename std::enable_if< (I == sizeof...(Functors)) >::type apply( size_t * dest, T const& v ) const
+ typename std::enable_if< (I == sizeof...(Functors)) >::type apply( size_t * /*dest*/, T const& /*v*/ ) const
{}
template <size_t I, typename T>
} // namespace details
//@endcond
+ /// Declare tuple for hash functors \p Functors
+ template <typename... Functors>
+ using hash_tuple = details::hash_list< std::tuple< Functors... >>;
+
//@cond
// At least, two functors must be provided. Single functor is not supported
-//#if CDS_COMPILER != CDS_COMPILER_INTEL
- // Intel C++ compiler does not support
template <typename Functor> struct hash< std::tuple<Functor> >;
-//#endif
//@endcond
- /// Multi-functor hash option setter - specialization for std::tuple
+ /// Multi-functor hash option setter - specialization for \p std::tuple
template <typename... Functors>
struct hash< std::tuple<Functors...> >
{
-//# if CDS_COMPILER == CDS_COMPILER_INTEL
- //static_assert( sizeof...(Functors) > 1, "At least, two functors must be provided. Single functor is not supported" );
-//# endif
//@cond
template <typename Base> struct pack: public Base
{
}} // namespace cds::opt
-#endif // #ifndef __CDS_OPT_HASH_H
+#endif // #ifndef CDSLIB_OPT_HASH_H