peri4
5db97ca959
remove CORS default header from PIHTTPServer fix several docs fix PIMathVector::dot return type add units directory with PIUnits facility
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*
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PIP - Platform Independent Primitives
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Unit value
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Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "piunits_value.h"
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#include "piliterals_string.h"
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#include "piunits_prefix.h"
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PIUnits::Value::Value(double v, int t) {
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m_value = v;
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m_class = Class::Internal::typeClasses.value(t);
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if (m_class) m_type = t;
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}
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PIString PIUnits::Value::toString(char format, int prec) const {
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if (isNotValid()) return Class::Internal::unknown;
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PIString ret;
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if (m_class->supportPrefixes(m_type)) {
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ret = Prefix::valueToString(m_value, m_class, m_type, format, prec);
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} else
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ret = m_class->valueToString(m_value, format, prec) + " "_a;
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ret += m_class->unit(m_type);
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return ret;
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}
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bool PIUnits::Value::convert(int type_to) {
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if (m_type == type_to) return true;
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auto * class_to = Class::Internal::typeClasses.value(type_to);
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if (!class_to) return false;
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if (m_class->classID() != class_to->classID()) return false;
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m_value = m_class->convert(m_value, m_type, type_to);
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m_type = type_to;
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return true;
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}
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PIUnits::Value PIUnits::Value::converted(int type_to) {
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Value ret(*this);
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if (!ret.convert(type_to)) return {};
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return ret;
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}
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