src: switched isupper to iswupper and all similar functions (issue #598)
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@@ -1403,9 +1403,9 @@ void GraphController::addCharacterIndex()
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continue;
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}
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if (toupper(m_dummyNodes[i]->name[0]) != character)
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if (towupper(m_dummyNodes[i]->name[0]) != character)
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{
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character = toupper(m_dummyNodes[i]->name[0]);
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character = towupper(m_dummyNodes[i]->name[0]);
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std::shared_ptr<DummyNode> textNode = std::make_shared<DummyNode>(DummyNode::DUMMY_TEXT);
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textNode->name = character;
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