Move map-key from build2 to libbutl, rename multi-index

1 files changed, 0 insertions, 59 deletions

diff --git a/build/map-key b/build/map-key
deleted file mode 100644
index 385d154..0000000
--- a/build/map-key
+++ /dev/null
@@ -1,59 +0,0 @@
-// file      : build/map-key -*- C++ -*-
-// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
-// license   : MIT; see accompanying LICENSE file
-
-#ifndef BUILD_MAP_KEY
-#define BUILD_MAP_KEY
-
-#include <utility>    // declval()
-#include <functional> // hash
-
-namespace build
-{
-  // Google the "Emulating Boost.MultiIndex with Standard Containers" blog
-  // post for deatils.
-  //
-
-  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<build::map_key<T>>: hash<T>
-  {
-    size_t
-    operator() (build::map_key<T> x) const
-      noexcept (noexcept (declval<hash<T>> () (*x.p)))
-    {
-      return hash<T>::operator() (*x.p);
-    }
-  };
-}
-
-#endif // BUILD_MAP_KEY