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67 lines
1.2 KiB
C++
67 lines
1.2 KiB
C++
/*
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* IBarsLast.cpp
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*
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* Copyright (c) 2019 hikyuu.org
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*
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* Created on: 2019-5-4
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* Author: fasiondog
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*/
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#include "IBarsLast.h"
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#if HKU_SUPPORT_SERIALIZATION
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BOOST_CLASS_EXPORT(hku::IBarsLast)
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#endif
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namespace hku {
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IBarsLast::IBarsLast() : IndicatorImp("BARSLAST", 1) {}
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IBarsLast::~IBarsLast() {}
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bool IBarsLast::check() {
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return true;
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}
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void IBarsLast::_calculate(const Indicator& ind) {
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size_t total = ind.size();
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m_discard = ind.discard();
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if (m_discard >= total) {
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m_discard = total;
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return;
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}
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if (total == m_discard + 1) {
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if (ind[m_discard] != 0.0) {
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_set(0, m_discard);
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} else {
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m_discard = total;
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}
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return;
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}
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size_t pos = total;
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for (size_t i = total - 1; i != m_discard; i--) {
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if (ind[i] != 0.0) {
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for (size_t j = i; j < pos; j++) {
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_set(j - i, j);
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}
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pos = i;
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}
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}
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if (ind[m_discard] != 0.0) {
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for (size_t i = m_discard; i < pos; i++) {
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_set(i - m_discard, i);
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}
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} else {
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m_discard = pos;
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}
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}
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Indicator HKU_API BARSLAST() {
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return Indicator(make_shared<IBarsLast>());
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}
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} /* namespace hku */
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