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rakshasa
74b154f07e
git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@237 e378c898-3ddf-0310-93e7-cc216c733640
103 lines
2.0 KiB
C++
103 lines
2.0 KiB
C++
#ifndef ALGO_BITS_IMPL_ENTRY_H
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#define ALGO_BITS_IMPL_ENTRY_H
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namespace algo {
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template <typename Type>
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struct _entry {
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template <typename Arg0>
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struct _ {
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typedef Type return_t;
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};
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_entry(Type t) : m_t(t) {}
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template <typename Arg0>
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typename _<Arg0&>::return_t operator () (Arg0& arg0) {
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return m_t;
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}
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template <typename Arg0>
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typename _<const Arg0&>::return_t operator () (const Arg0& arg0) {
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return m_t;
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}
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Type m_t;
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};
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template <typename Target, typename Type, typename Class>
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struct _member {
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template <typename Arg0>
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struct _ {
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typedef typename traits<Type>::ref_t return_t;
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};
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_member(Target target, Type Class::*member) :
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m_target(target), m_member(member) {}
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template <typename Arg0>
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typename _<Arg0&>::return_t operator () (Arg0& arg0) {
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return (m_target(arg0)).*m_member;
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}
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template <typename Arg0>
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typename _<const Arg0&>::return_t operator () (const Arg0& arg0) {
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return (m_target(arg0)).*m_member;
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}
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Target m_target;
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Type Class::*m_member;
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};
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struct _arg0 {
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template <typename Arg0>
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struct _ {
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typedef typename traits<Arg0>::ref_t return_t;
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};
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template <typename Arg0>
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typename _<Arg0&>::return_t operator () (Arg0& arg0) {
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return arg0;
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}
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template <typename Arg0>
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typename _<const Arg0&>::return_t operator () (const Arg0& arg0) {
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return arg0;
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}
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};
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// Consider implementing _on0 and _on2 as m4 macros, but there will
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// never be more than 0-2, so dunno.
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template <typename Target, typename Parm0>
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struct _on1 {
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template <typename Arg0>
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struct _ {
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typedef typeof(_makeT<Target>()(_makeT<Arg0>())) return_t;
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};
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_on1(Target target, Parm0 parm0) :
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m_target(target), m_parm0(parm0) {}
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template <typename Arg0>
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typename _<Arg0>::return_t operator () (Arg0& arg0) {
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return m_target(m_parm0(arg0));
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}
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template <typename Arg0>
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typename _<const Arg0>::return_t operator () (const Arg0& arg0) {
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return m_target(m_parm0(arg0));
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}
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Target m_target;
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Parm0 m_parm0;
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};
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}
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#endif
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