[TRAVIS] cleanup travis script

src/common/config.h

@@ -147,7 +147,7 @@ class ConfigStreamReader: public ConfigReaderBase {
  public:
   /*!
    * \brief constructor
-   * \param istream input stream
+   * \param fin istream input stream
    */
   explicit ConfigStreamReader(std::istream &fin) : fin(fin) {}
 

src/common/group_data.h

@@ -91,7 +91,8 @@ struct ParallelGroupBuilder {
    * \brief step 4: add data to the allocated space,
    *   the calls to this function should be exactly match previous call to AddBudget
    *
-   * \param key the key of
+   * \param key the key of group.
+   * \param value The value to be pushed to the group.
    * \param threadid the id of thread that calls this function
    */
   inline void Push(size_t key, ValueType value, int threadid) {

src/common/quantile.h

@@ -631,7 +631,7 @@ class QuantileSketchTemplate {
      * \brief do elementwise combination of summary array
      *        this[i] = combine(this[i], src[i]) for each i
      * \param src the source summary
-     * \param max_nbyte, maximum number of byte allowed in here
+     * \param max_nbyte maximum number of byte allowed in here
      */
     inline void Reduce(const Summary &src, size_t max_nbyte) {
       this->Reserve((max_nbyte - sizeof(this->size)) / sizeof(Entry));
@@ -688,7 +688,8 @@ class QuantileSketchTemplate {
   }
   /*!
    * \brief add an element to a sketch
-   * \param x the element added to the sketch
+   * \param x The element added to the sketch
+   * \param w The weight of the element.
    */
   inline void Push(DType x, RType w = 1) {
     if (w == static_cast<RType>(0)) return;

src/data/data.cc

@@ -165,15 +165,15 @@ DMatrix* DMatrix::Load(const std::string& uri,
     if (fi.get() != nullptr) {
       common::PeekableInStream is(fi.get());
       if (is.PeekRead(&magic, sizeof(magic)) == sizeof(magic) &&
-	  magic == data::SimpleCSRSource::kMagic) {
-	std::unique_ptr<data::SimpleCSRSource> source(new data::SimpleCSRSource());
-	source->LoadBinary(&is);
-	DMatrix* dmat = DMatrix::Create(std::move(source), cache_file);
-	if (!silent) {
-	  LOG(CONSOLE) << dmat->info().num_row << 'x' << dmat->info().num_col << " matrix with "
-		       << dmat->info().num_nonzero << " entries loaded from " << uri;
-	}
-	return dmat;
+          magic == data::SimpleCSRSource::kMagic) {
+        std::unique_ptr<data::SimpleCSRSource> source(new data::SimpleCSRSource());
+        source->LoadBinary(&is);
+        DMatrix* dmat = DMatrix::Create(std::move(source), cache_file);
+        if (!silent) {
+          LOG(CONSOLE) << dmat->info().num_row << 'x' << dmat->info().num_col << " matrix with "
+                       << dmat->info().num_nonzero << " entries loaded from " << uri;
+        }
+        return dmat;
       }
     }
   }

src/data/sparse_page_source.cc

@@ -103,7 +103,7 @@ void SparsePageSource::Create(dmlc::Parser<uint32_t>* src,
     for (size_t i = batch.offset[0]; i < batch.offset[batch.size]; ++i) {
       uint32_t index = batch.index[i];
       info.num_col = std::max(info.num_col,
-                              static_cast<size_t>(index + 1));
+                              static_cast<uint64_t>(index + 1));
     }
     page.Push(batch);
     if (page.MemCostBytes() >= kPageSize) {