diff options
author | Karen Arutyunov <karen@codesynthesis.com> | 2017-05-01 16:08:43 +0300 |
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committer | Karen Arutyunov <karen@codesynthesis.com> | 2017-05-01 16:59:24 +0300 |
commit | 61377c582e0f2675baa5f5e6e30a35d1a4164b33 (patch) | |
tree | 11cdca992834d7f7f197f72856712fbcb3020e3d /butl/multi-index | |
parent | 442c1a6790e52baa0c081f310d4d9e9b6f1ff638 (diff) |
Add hxx extension for headers and lib prefix for library dir
Diffstat (limited to 'butl/multi-index')
-rw-r--r-- | butl/multi-index | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/butl/multi-index b/butl/multi-index deleted file mode 100644 index 15d8c14..0000000 --- a/butl/multi-index +++ /dev/null @@ -1,59 +0,0 @@ -// file : butl/multi-index -*- C++ -*- -// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd -// license : MIT; see accompanying LICENSE file - -#ifndef BUTL_MULTI_INDEX -#define BUTL_MULTI_INDEX - -#include <utility> // declval() -#include <functional> // hash - -namespace butl -{ - // Google the "Emulating Boost.MultiIndex with Standard Containers" blog - // post for details. - // - - template <typename T> - struct map_key - { - mutable const T* p; - - map_key (const T* v = 0): p (v) {} - bool operator< (const map_key& x) const {return *p < *x.p;} - bool operator== (const map_key& x) const {return *p == *x.p;} - }; - - template <typename I> - struct map_iterator_adapter: I - { - typedef const typename I::value_type::second_type value_type; - typedef value_type* pointer; - typedef value_type& reference; - - map_iterator_adapter () {} - map_iterator_adapter (I i): I (i) {} - - map_iterator_adapter& - operator= (I i) {static_cast<I&> (*this) = i; return *this;} - - reference operator* () const {return I::operator* ().second;} - pointer operator-> () const {return &I::operator-> ()->second;} - }; -} - -namespace std -{ - template <typename T> - struct hash<butl::map_key<T>>: hash<T> - { - size_t - operator() (butl::map_key<T> x) const - noexcept (noexcept (declval<hash<T>> () (*x.p))) - { - return hash<T>::operator() (*x.p); - } - }; -} - -#endif // BUTL_MULTI_INDEX |