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* src/tgbaalgos/degen.cc (unicity_table): Simplify.

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This commit is contained in:
Alexandre Duret-Lutz 2014-01-23 14:23:35 +01:00
parent bd6d88db96
commit c7b3148cb4
1 changed files with 10 additions and 18 deletions
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26
src/tgbaalgos/degen.cc
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@ -1,5 +1,6 @@
// Copyright (C) 2012, 2013 Laboratoire de Recherche et Développement
// de l'Epita.
// -*- coding: utf-8 -*-
// Copyright (C) 2012, 2013, 2014 Laboratoire de Recherche et
// Développement de l'Epita.
//
// This file is part of Spot, a model checking library.
//
@ -69,32 +70,23 @@ namespace spot
// Memory management for the input states.
class unicity_table
{
typedef std::unordered_set<const state*,
state_ptr_hash, state_ptr_equal> uniq_set;
uniq_set m;
state_set m;
public:
const state* operator()(const state* s)
{
uniq_set::const_iterator i = m.find(s);
if (i == m.end())
{
m.insert(s);
return s;
}
else
{
auto p = m.insert(s);
if (!p.second)
s->destroy();
return *i;
}
return *p.first;
}
~unicity_table()
{
for (uniq_set::iterator i = m.begin(); i != m.end();)
for (state_set::iterator i = m.begin(); i != m.end();)
{
// Advance the iterator before destroying its key. This
// avoid issues with old g++ implementations.
uniq_set::iterator old = i++;
state_set::iterator old = i++;
(*old)->destroy();
}
}