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[apps/probability] Avoid too long loop in calculation

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Change-Id: I33e60aa51aaff44b73bf0a810fdaf6369f653b19
This commit is contained in:
Émilie Feral
2017-03-23 17:39:57 +01:00
parent f15bdd97c0
commit 5bdd8a4e71
2 changed files with 9 additions and 0 deletions
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8
apps/probability/law/law.cpp
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@@ -14,6 +14,10 @@ float Law::cumulativeDistributiveFunctionAtAbscissa(float x) const {
float result = 0.0f;
for (int k = 0; k <=end; k++) {
result += evaluateAtAbscissa(k);
/* Avoid too long loop */
if (result > k_maxProbability || k > k_maxNumberOfOperations) {
break;
}
}
return result;
}
@@ -39,6 +43,10 @@ float Law::finiteIntegralBetweenAbscissas(float a, float b) const {
float result = 0.0f;
for (int k = start; k <=end; k++) {
result += evaluateAtAbscissa(k);
/* Avoid too long loop */
if (result > k_maxProbability || k-start > k_maxNumberOfOperations) {
break;
}
}
return result;
}

1
apps/probability/law/law.h
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@@ -36,6 +36,7 @@ public:
virtual float rightIntegralInverseForProbability(float * probability);
protected:
constexpr static int k_maxNumberOfOperations = 1000000;
constexpr static float k_maxProbability = 0.9995f;
constexpr static float k_displayTopMarginRatio = 0.05f;
constexpr static float k_displayBottomMarginRatio = 0.2f;
constexpr static float k_displayLeftMarginRatio = 0.05f;