sequence.cpp
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#include <poincare/sequence.h>
#include <poincare/decimal.h>
#include <poincare/symbol.h>
#include <poincare/undefined.h>
#include <poincare/variable_context.h>
extern "C" {
#include <assert.h>
#include <stdlib.h>
}
#include <cmath>
namespace Poincare {
ExpressionLayout * Sequence::createLayout(PrintFloat::Mode floatDisplayMode, int numberOfSignificantDigits) const {
return createSequenceLayoutWithArgumentLayouts(operand(0)->createLayout(floatDisplayMode, numberOfSignificantDigits), operand(1)->createLayout(floatDisplayMode, numberOfSignificantDigits), operand(2)->createLayout(floatDisplayMode, numberOfSignificantDigits));
}
template<typename T>
Evaluation<T> * Sequence::templatedApproximate(Context& context, AngleUnit angleUnit) const {
Evaluation<T> * aInput = operand(1)->privateApproximate(T(), context, angleUnit);
Evaluation<T> * bInput = operand(2)->privateApproximate(T(), context, angleUnit);
T start = aInput->toScalar();
T end = bInput->toScalar();
delete aInput;
delete bInput;
if (std::isnan(start) || std::isnan(end) || start != (int)start || end != (int)end || end - start > k_maxNumberOfSteps) {
return new Complex<T>(Complex<T>::Undefined());
}
VariableContext<T> nContext = VariableContext<T>('n', &context);
Evaluation<T> * result = new Complex<T>(emptySequenceValue());
for (int i = (int)start; i <= (int)end; i++) {
if (shouldStopProcessing()) {
delete result;
return new Complex<T>(Complex<T>::Undefined());
}
nContext.setApproximationForVariable((T)i);
Evaluation<T> * expression = operand(0)->privateApproximate(T(), nContext, angleUnit);
Evaluation<T> * newResult = evaluateWithNextTerm(T(), result, expression);
delete result;
delete expression;
result = newResult;
if (result == nullptr) {
return new Complex<T>(Complex<T>::Undefined());
}
}
return result;
}
}