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[calculation][solver] Do not display exact solutions in Dutch exam mode

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Émilie Feral
2019-12-12 13:22:10 +01:00
committed by LeaNumworks
parent da735b93a4
commit 5491dee5ce
2 changed files with 10 additions and 2 deletions
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7
apps/solver/equation_store.cpp
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@@ -1,6 +1,7 @@
#include "equation_store.h"
#include "../constant.h"
#include "../shared/poincare_helpers.h"
#include "../global_preferences.h"
#include <limits.h>
#include <poincare/constant.h>
@@ -193,6 +194,8 @@ EquationStore::Error EquationStore::exactSolve(Poincare::Context * context) {
}
}
// Create the results' layouts
// In Dutch exam mode, display only approximate solutions
bool forbidExactSolutions = GlobalPreferences::sharedGlobalPreferences()->examMode() == GlobalPreferences::ExamMode::Dutch;
int solutionIndex = 0;
int initialNumberOfSolutions = m_numberOfSolutions <= k_maxNumberOfExactSolutions ? m_numberOfSolutions : -1;
// We iterate through the solutions and the potential delta
@@ -211,7 +214,9 @@ EquationStore::Error EquationStore::exactSolve(Poincare::Context * context) {
char approximateBuffer[::Constant::MaxSerializedExpressionSize];
m_exactSolutionExactLayouts[solutionIndex].serializeForParsing(exactBuffer, ::Constant::MaxSerializedExpressionSize);
m_exactSolutionApproximateLayouts[solutionIndex].serializeForParsing(approximateBuffer, ::Constant::MaxSerializedExpressionSize);
m_exactSolutionIdentity[solutionIndex] = strcmp(exactBuffer, approximateBuffer) == 0;
/* Cheat: declare exact and approximate solutions to be identical in
* Dutch exam mode to display only the approximate solutions. */
m_exactSolutionIdentity[solutionIndex] = forbidExactSolutions || strcmp(exactBuffer, approximateBuffer) == 0;
if (!m_exactSolutionIdentity[solutionIndex]) {
char buffer[::Constant::MaxSerializedExpressionSize];
m_exactSolutionEquality[solutionIndex] = exactSolutions[i].isEqualToItsApproximationLayout(exactSolutionsApproximations[i], buffer, ::Constant::MaxSerializedExpressionSize, preferences->complexFormat(), preferences->angleUnit(), preferences->displayMode(), preferences->numberOfSignificantDigits(), context);