#include "cache_context.h" #include <cmath> using namespace Poincare; namespace Sequence { template<typename T> CacheContext<T>::CacheContext(Context * parentContext) : VariableContext<T>('n', parentContext), m_values{{Approximation<T>(NAN), Approximation<T>(NAN)}, {Approximation<T>(NAN), Approximation<T>(NAN)}} { } template<typename T> const Expression * CacheContext<T>::expressionForSymbol(const Symbol * symbol) { if (symbol->name() == Symbol::SpecialSymbols::un || symbol->name() == Symbol::SpecialSymbols::un1 || symbol->name() == Symbol::SpecialSymbols::vn || symbol->name() == Symbol::SpecialSymbols::vn1) { return &m_values[nameIndexForSymbol(symbol)][rankIndexForSymbol(symbol)]; } return VariableContext<T>::expressionForSymbol(symbol); } template<typename T> void CacheContext<T>::setValueForSymbol(T value, const Poincare::Symbol * symbol) { m_values[nameIndexForSymbol(symbol)][rankIndexForSymbol(symbol)] = Approximation<T>(value); } template<typename T> int CacheContext<T>::nameIndexForSymbol(const Poincare::Symbol * symbol) { switch (symbol->name()) { case Symbol::SpecialSymbols::un: return 0; case Symbol::SpecialSymbols::un1: return 0; case Symbol::SpecialSymbols::vn: return 1; case Symbol::SpecialSymbols::vn1: return 1; default: return 0; } } template<typename T> int CacheContext<T>::rankIndexForSymbol(const Poincare::Symbol * symbol) { switch (symbol->name()) { case Symbol::SpecialSymbols::un: return 0; case Symbol::SpecialSymbols::un1: return 1; case Symbol::SpecialSymbols::vn: return 0; case Symbol::SpecialSymbols::vn1: return 1; default: return 0; } } template class CacheContext<float>; template class CacheContext<double>; }