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twacube: check nullptr during conversion

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* spot/twacube_algos/convert.cc: Here.
This commit is contained in:
Etienne Renault 2020-05-12 13:59:46 +02:00
parent 53ea1131e6
commit 907a3cfbbf
1 changed files with 4 additions and 1 deletions
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5
spot/twacube_algos/convert.cc
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@ -1,5 +1,5 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2015, 2016, 2018 Laboratoire de Recherche et Developpement de
// Copyright (C) 2015, 2016, 2018, 2020 Laboratoire de Recherche et Developpement de
// l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
@ -62,6 +62,9 @@ namespace spot
spot::twacube_ptr twa_to_twacube(const spot::const_twa_graph_ptr aut)
{
if (aut == nullptr)
return nullptr;
// Compute the necessary binder and extract atomic propositions
std::unordered_map<int, int> ap_binder;
std::vector<std::string>* aps = extract_aps(aut, ap_binder);