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[graph] Create a static method StorageCartesianFunctionStore::Symbol()

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Émilie Feral
2018-10-18 18:07:34 +02:00
parent 4dbd7583e0
commit 8e2a30ab8e
11 changed files with 17 additions and 14 deletions
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2
apps/graph/graph/graph_controller_helper.cpp
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@@ -23,7 +23,7 @@ void GraphControllerHelper::reloadDerivativeInBannerViewForCursorOnFunction(Shar
constexpr size_t bufferSize = FunctionBannerDelegate::k_maxNumberOfCharacters+PrintFloat::bufferSizeForFloatsWithPrecision(Constant::LargeNumberOfSignificantDigits);
char buffer[bufferSize];
const char * space = " ";
int numberOfChar = function->derivativeNameWithArgument(buffer, bufferSize, 'x');
int numberOfChar = function->derivativeNameWithArgument(buffer, bufferSize, StorageCartesianFunctionStore::Symbol());
const char * legend = "=";
numberOfChar += strlcpy(buffer+numberOfChar, legend, bufferSize-numberOfChar);
double y = function->approximateDerivative(cursor->x(), app->localContext());