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nullptr cleanup for -Wzero-as-null-pointer-constant

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Fixes #106.

* m4/gccwarn.m4: Use -Wzero-as-null-pointer-constant if supported.
* src/bin/autfilt.cc, src/bin/common_aoutput.cc,
src/bin/common_finput.cc, src/bin/common_finput.hh,
src/bin/common_output.cc, src/bin/common_output.hh,
src/bin/common_post.cc, src/bin/common_r.hh, src/bin/common_range.hh,
src/bin/common_setup.cc, src/bin/common_trans.cc, src/bin/dstar2tgba.cc,
src/bin/genltl.cc, src/bin/ltl2tgba.cc, src/bin/ltl2tgta.cc,
src/bin/ltlcross.cc, src/bin/ltldo.cc, src/bin/ltlfilt.cc,
src/bin/ltlgrind.cc, src/bin/randaut.cc, src/bin/randltl.cc,
src/bin/spot-x.cc, src/kripke/kripkeexplicit.cc, src/ltlast/formula.cc,
src/ltlvisit/randomltl.cc, src/ltlvisit/randomltl.hh,
src/ltlvisit/relabel.cc, src/ltlvisit/relabel.hh,
src/ltlvisit/simplify.cc, src/ltlvisit/snf.hh, src/misc/fixpool.hh,
src/misc/mspool.hh, src/misc/hash.hh, src/misc/optionmap.cc,
src/misc/satsolver.cc, src/misc/tmpfile.cc, src/misc/tmpfile.hh,
src/priv/bddalloc.cc, src/ta/ta.hh, src/ta/taexplicit.cc,
src/ta/taexplicit.hh, src/ta/taproduct.cc, src/ta/tgtaexplicit.hh,
src/ta/tgtaproduct.cc, src/taalgos/minimize.cc,
src/taalgos/reachiter.cc, src/taalgos/tgba2ta.cc,
src/tests/complementation.cc, src/tests/ikwiad.cc,
src/tests/randtgba.cc, src/tests/reduc.cc, src/twa/bdddict.cc,
src/twa/bddprint.cc, src/twa/taatgba.cc, src/twa/twa.cc,
src/twa/twagraph.hh, src/twa/twaproduct.cc,
src/twa/twasafracomplement.cc, src/twaalgos/bfssteps.cc,
src/twaalgos/compsusp.cc, src/twaalgos/dtgbasat.cc,
src/twaalgos/emptiness.cc, src/twaalgos/gtec/ce.cc,
src/twaalgos/gv04.cc, src/twaalgos/ltl2taa.cc,
src/twaalgos/ltl2tgba_fm.cc, src/twaalgos/ltl2tgba_fm.hh,
src/twaalgos/magic.cc, src/twaalgos/minimize.cc,
src/twaalgos/ndfs_result.hxx, src/twaalgos/postproc.cc,
src/twaalgos/postproc.hh, src/twaalgos/reachiter.cc,
src/twaalgos/reducerun.cc, src/twaalgos/safety.hh,
src/twaalgos/sccfilter.hh, src/twaalgos/se05.cc,
src/twaalgos/simulation.cc, src/twaalgos/tau03.cc,
src/twaalgos/tau03opt.cc, src/twaalgos/translate.cc,
src/twaalgos/translate.hh, utf8/utf8/core.h,
bench/stutter/stutter_invariance_formulas.cc, iface/ltsmin/ltsmin.cc,
iface/ltsmin/modelcheck.cc: Use nullptr to fix the warning.
This commit is contained in:
Alexandre Duret-Lutz 2015-09-26 22:14:27 +02:00
parent 51a3cfcede
commit 1729a79ac7
87 changed files with 755 additions and 717 deletions
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21
src/twaalgos/ndfs_result.hxx
View file

@ -1,9 +1,9 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2011, 2013, 2014 Laboratoire de recherche et
// Copyright (C) 2011, 2013, 2014, 2015 Laboratoire de recherche et
// développement de l'Epita (LRDE).
// Copyright (C) 2004, 2005, 2006 Laboratoire d'Informatique de Paris 6 (LIP6),
// département Systèmes Répartis Coopératifs (SRC), Université Pierre
// et Marie Curie.
// Copyright (C) 2004, 2005, 2006 Laboratoire d'Informatique de Paris
// 6 (LIP6), département Systèmes Répartis Coopératifs (SRC),
// Université Pierre et Marie Curie.
//
// This file is part of Spot, a model checking library.
//
@ -395,7 +395,7 @@ namespace spot
if (s)
return this->bfs_steps::search(s, l);
else
return 0;
return nullptr;
}
const state* filter(const state* s)
@ -405,7 +405,7 @@ namespace spot
|| dead.find(s) != dead.end())
{
s->destroy();
return 0;
return nullptr;
}
ars->inc_ars_cycle_states();
seen.insert(s);
@ -490,7 +490,7 @@ namespace spot
if (s)
return this->bfs_steps::search(s, l);
else
return 0;
return nullptr;
}
const state* filter(const state* s)
@ -503,7 +503,7 @@ namespace spot
else
ndfsr_trace << " already seen" << std::endl;
s->destroy();
return 0;
return nullptr;
}
ndfsr_trace << " OK" << std::endl;
if (cycle)
@ -605,7 +605,8 @@ namespace spot
<< a_->format_state(current.dest) << " to "
<< a_->format_state(begin) << std::endl;
transition tmp;
tmp.source = tmp.dest = 0; // Initialize to please GCC 4.0.1 (Darwin).
// Initialize to please GCC 4.0.1 (Darwin).
tmp.source = tmp.dest = nullptr;
tmp.acc = 0U;
target.emplace(begin, tmp);
min_path<true> s(this, a_, target, h_);
@ -620,7 +621,7 @@ namespace spot
{
m_source_trans target;
transition tmp;
tmp.source = tmp.dest = 0; // Initialize to please GCC 4.0.
tmp.source = tmp.dest = nullptr; // Initialize to please GCC 4.0.
tmp.acc = 0U;
// Register all states from the cycle as target of the BFS.