3f2aca298c
This is a blanket migration via the clang C++11 migration tool to convert NULL pointer to nullptr usage. Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>
114 lines
2.2 KiB
C++
114 lines
2.2 KiB
C++
/* vim: set sw=4 sts=4 et foldmethod=syntax : */
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/*
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* Copyright (c) 2008, 2009 Ciaran McCreesh
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*
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* This file is part of the Paludis package manager. Paludis is free software;
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* you can redistribute it and/or modify it under the terms of the GNU General
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* Public License version 2, as published by the Free Software Foundation.
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*
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* Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <paludis/util/tribool.hh>
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#include <paludis/util/exception.hh>
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#include <paludis/util/stringify.hh>
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#include <string>
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#include <istream>
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#include <ostream>
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using namespace paludis;
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Tribool::Tribool() :
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_value(v_false)
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{
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}
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Tribool::Tribool(const bool b) :
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_value(b ? v_true : v_false)
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{
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}
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Tribool::Tribool(TriboolIndeterminateValueType) :
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_value(v_indeterminate)
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{
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}
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bool
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Tribool::is_true() const
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{
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return v_true == _value;
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}
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bool
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Tribool::is_false() const
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{
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return v_false == _value;
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}
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bool
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Tribool::is_indeterminate() const
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{
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return v_indeterminate == _value;
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}
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NoType<0u> *
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paludis::indeterminate(const NoType<0u> * const)
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{
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return nullptr;
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}
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std::ostream &
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paludis::operator<< (std::ostream & s, const Tribool v)
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{
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if (v.is_true())
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s << "true";
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else if (v.is_false())
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s << "false";
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else if (v.is_indeterminate())
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s << "indeterminate";
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else
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throw InternalError(PALUDIS_HERE, "Bad tribool");
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return s;
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}
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std::istream &
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paludis::operator>> (std::istream & s, Tribool & a)
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{
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std::string value;
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s >> value;
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do
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{
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if (value == "true")
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{
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a = true;
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break;
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}
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if (value == "false")
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{
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a = false;
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break;
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}
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if (value == "indeterminate")
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{
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a = indeterminate;
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break;
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}
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s.setstate(std::ios::badbit);
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} while (false);
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return s;
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}
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