Make sizeof more generic
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@ -40,7 +40,7 @@ RainbowDashAnalyzer::RainbowDashAnalyzer(QWidget* parent)
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px_per_frame_(0),
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x_offset_(0),
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background_brush_(QColor(0x38, 0x88, 0x00)) {
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memset(history_, 0, arraysize(history_) * sizeof(float));
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memset(history_, 0, arraysize(history_) * sizeof(*history_));
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for (int i = 0; i < kRainbowBands; ++i) {
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colors_[i] = QPen(QColor::fromHsv(i * 255 / kRainbowBands, 255, 255),
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