Files
Upsilon/poincare/src/floor.cpp
Émilie Feral f06fe953ce [poincare] Change call to Expression::shallowReduce to
Expression::defaultShallowReduce to avoid infinite loop
2018-08-17 12:10:37 +02:00

64 lines
1.7 KiB
C++

#include <poincare/floor.h>
#include <poincare/floor_layout_node.h>
#include <poincare/symbol.h>
#include <poincare/simplification_helper.h>
#include <poincare/rational.h>
#include <ion.h>
extern "C" {
#include <assert.h>
}
#include <cmath>
namespace Poincare {
Expression::Type Floor::type() const {
return Type::Floor;
}
Expression * Floor::clone() const {
Floor * c = new Floor(m_operands, true);
return c;
}
Expression Floor::shallowReduce(Context& context, Preferences::AngleUnit angleUnit) {
Expression * e = Expression::defaultShallowReduce(context, angleUnit);
if (e != this) {
return e;
}
Expression * op = editableOperand(0);
#if MATRIX_EXACT_REDUCING
if (op->type() == Type::Matrix) {
return SimplificationHelper::Map(this, context, angleUnit);
}
#endif
if (op->type() == Type::Symbol) {
Symbol * s = static_cast<Symbol *>(op);
if (s->name() == Ion::Charset::SmallPi) {
return replaceWith(new Rational(3), true);
}
if (s->name() == Ion::Charset::Exponential) {
return replaceWith(new Rational(2), true);
}
}
if (op->type() != Type::Rational) {
return this;
}
Rational * r = static_cast<Rational *>(op);
IntegerDivision div = Integer::Division(r->numerator(), r->denominator());
return replaceWith(new Rational(div.quotient), true);
}
template<typename T>
std::complex<T> Floor::computeOnComplex(const std::complex<T> c, Preferences::AngleUnit angleUnit) {
if (c.imag() != 0) {
return Complex<T>::Undefined();
}
return Complex<T>(std::floor(c.real()));
}
LayoutRef Floor::createLayout(Preferences::PrintFloatMode floatDisplayMode, int numberOfSignificantDigits) const {
return FloorLayoutRef(m_operands[0]->createLayout(floatDisplayMode, numberOfSignificantDigits));
}
}