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introduce SPOT_FALLTHROUGH to cope with -Wimplicit-fallthrough

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* NEWS: Mention the fix.
* HACKING: Mention the new macro.
* spot/misc/common.hh (SPOT_FALLTHROUGH): Add the macro.
* bin/randltl.cc, spot/misc/escape.cc, spot/tl/mutation.cc,
spot/tl/print.cc, spot/tl/simplify.hh, spot/tl/snf.cc, spot/twa/acc.cc,
spot/twaalgos/ltl2taa.cc, spot/twaalgos/ltl2tgba_fm.cc,
spot/twaalgos/sepsets.cc, spot/twaalgos/translate.cc: Use it.
This commit is contained in:
Alexandre Duret-Lutz 2016-10-07 17:25:09 +02:00
parent fa80571d44
commit a5d6aa2533
14 changed files with 85 additions and 27 deletions
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6
spot/tl/mutation.cc
View file

@ -1,6 +1,6 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2014, 2015 Laboratoire de Recherche et Developpement de
// l'Epita (LRDE).
// Copyright (C) 2014, 2015, 2016 Laboratoire de Recherche et
// Developpement de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
@ -85,7 +85,7 @@ namespace spot
if ((opts_ & Mut_Remove_Ops)
&& mutation_counter_-- == 0)
return f[0];
// fall through
SPOT_FALLTHROUGH;
case op::Closure:
case op::NegClosure:
case op::NegClosureMarked:

4
spot/tl/print.cc
View file

@ -1,5 +1,5 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2008, 2010, 2012, 2013, 2014, 2015 Laboratoire de
// Copyright (C) 2008, 2010, 2012, 2013, 2014, 2015, 2016 Laboratoire de
// Recherche et Développement de l'Epita (LRDE)
// Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
// département Systèmes Répartis Coopératifs (SRC), Université Pierre
@ -527,7 +527,7 @@ namespace spot
emit(KNot);
if (o == op::NegClosureMarked)
os_ << (kw_ == utf8_kw ? "̃": "+");
// Fall through
SPOT_FALLTHROUGH;
case op::Closure:
os_ << '{';
in_ratexp_ = true;

10
spot/tl/simplify.hh
View file

@ -1,6 +1,6 @@
// -*- coding: utf-8 -*-
// Copyright (C) 2011, 2012, 2013, 2014, 2015 Laboratoire de Recherche
// et Developpement de l'Epita (LRDE).
// Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016 Laboratoire de
// Recherche et Developpement de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
@ -58,14 +58,14 @@ namespace spot
case 3:
containment_checks = true;
containment_checks_stronger = true;
// fall through
SPOT_FALLTHROUGH;
case 2:
synt_impl = true;
// fall through
SPOT_FALLTHROUGH;
case 1:
reduce_basics = true;
event_univ = true;
// fall through
SPOT_FALLTHROUGH;
default:
break;
}

7
spot/tl/snf.cc
View file

@ -19,6 +19,11 @@
#include <spot/tl/snf.hh>
#if defined __clang__
// See https://llvm.org/bugs/show_bug.cgi?id=30636
#pragma clang diagnostic ignored "-Wimplicit-fallthrough"
#endif
namespace spot
{
namespace
@ -65,7 +70,7 @@ namespace spot
out = f;
break;
}
// Fall through
SPOT_FALLTHROUGH;
case op::OrRat:
case op::AndNLM:
// Let F designate expressions that accept [*0],