/****************************************************************************************[IntMap.h]
Copyright (c) 2011, Niklas Sorensson
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************************************/

#ifndef Minisat_IntMap_h
#define Minisat_IntMap_h

#include "Vec.h"

namespace Minisat {

    template<class T> struct MkIndexDefault {
        typename vec<T>::Size operator()(T t) const { return (typename vec<T>::Size)t; }
    };
    
    template<class K, class V, class MkIndex = MkIndexDefault<K> >
    class IntMap {
        vec<V>   map;
        MkIndex  index;
    public:
        explicit IntMap(MkIndex _index = MkIndex()) : index(_index){}
        
        bool     has       (K k) const { return index(k) < map.size(); }

        const V& operator[](K k) const { assert(has(k)); return map[index(k)]; }
        V&       operator[](K k)       { assert(has(k)); return map[index(k)]; }

        const V* begin  () const { return &map[0]; }
        const V* end    () const { return &map[map.size()]; }
        V*       begin  ()       { return &map[0]; }
        V*       end    ()       { return &map[map.size()]; }

        void     reserve(K key, V pad)       { map.growTo(index(key)+1, pad); }
        void     reserve(K key)              { map.growTo(index(key)+1); }
        void     insert (K key, V val, V pad){ reserve(key, pad); operator[](key) = val; }
        void     insert (K key, V val)       { reserve(key); operator[](key) = val; }

        void     clear  (bool dispose = false) { map.clear(dispose); }
        void     moveTo (IntMap& to)           { map.moveTo(to.map); to.index = index; }
        void     copyTo (IntMap& to) const     { map.copyTo(to.map); to.index = index; }
    };


    template<class K, class MkIndex = MkIndexDefault<K> >
    class IntSet
    {
        IntMap<K, char, MkIndex> in_set;
        vec<K>                   xs;
        
    public:
        // Size operations:
        int      size        (void)      const  { return xs.size(); }
        void     clear       (bool free = false){
            if (free)
                in_set.clear(true); 
            else
                for (int i = 0; i < xs.size(); i++)
                    in_set[xs[i]] = 0;
            xs.clear(free);
        }

        // Allow inspecting the internal vector:
        const vec<K>&
                 toVec       ()          const  { return xs; }
        
        // Vector interface:
        K        operator [] (int index) const  { return xs[index]; }
        
        
        void     insert      (K k) { in_set.reserve(k, 0); if (!in_set[k]) { in_set[k] = 1; xs.push(k); } }
        bool     has         (K k) { in_set.reserve(k, 0); return in_set[k]; }
    };

    #if 0
    template<class K, class V, V nil, class MkIndex = MkIndexDefault<K><style>pre { line-height: 125%; margin: 0; }
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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span><span class="k">\chapter</span><span class="nb">{</span>Auxiliary Programs<span class="nb">}</span>

Besides the main <span class="nb">{</span><span class="k">\tt</span> yosys<span class="nb">}</span> executable, the Yosys distribution contains a set
of additional helper programs.

<span class="k">\section</span><span class="nb">{</span>yosys-config<span class="nb">}</span>

The <span class="nb">{</span><span class="k">\tt</span> yosys-config<span class="nb">}</span> tool (an auto-generated shell-script) can be used to
query compiler options and other information needed for building loadable
modules for Yosys. FIXME: See Sec.~<span class="k">\ref</span><span class="nb">{</span>chapter:prog<span class="nb">}</span> for details.

<span class="k">\section</span><span class="nb">{</span>yosys-filterlib<span class="nb">}</span>
<span class="k">\label</span><span class="nb">{</span>sec:filterlib<span class="nb">}</span>

The <span class="nb">{</span><span class="k">\tt</span> yosys-filterlib<span class="nb">}</span> tool is a small utility that can be used to strip
or extract information from a Liberty file. See Sec.~<span class="k">\ref</span><span class="nb">{</span>sec:techmap<span class="nb">_</span>extern<span class="nb">}</span>
for details.

<span class="k">\section</span><span class="nb">{</span>yosys-abc<span class="nb">}</span>

This is a unmodified copy of ABC <span class="k">\citeweblink</span><span class="nb">{</span>ABC<span class="nb">}</span>. Not all versions of Yosys
work with all versions of ABC. So Yosys comes with its own yosys-abc to avoid
compatibility issues between the two.
</pre></div>
</code></pre></td></tr></table>
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