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Remove initializing stringstream reference. (#4788)

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Jiaming Yuan 2019-08-18 09:59:47 -04:00 committed by GitHub
parent c81238b5c4
commit c358d95c44
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1 changed files with 1 additions and 2 deletions
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src/tree/tree_model.cc
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@ -457,12 +457,11 @@ DMLC_REGISTER_PARAMETER(GraphvizParam);
class GraphvizGenerator : public TreeGenerator {
using SuperT = TreeGenerator;
std::stringstream& ss_;
GraphvizParam param_;
public:
GraphvizGenerator(FeatureMap const& fmap, std::string const& attrs, bool with_stats) :
TreeGenerator(fmap, with_stats), ss_{SuperT::ss_} {
TreeGenerator(fmap, with_stats) {
param_.InitAllowUnknown(std::map<std::string, std::string>{});
using KwArg = std::map<std::string, std::map<std::string, std::string>>;
KwArg kwargs;