External data adapters (#5044)

* Use external data adapters as lightweight intermediate layer between external data and DMatrix
2019-12-04 10:56:17 +13:00
parent f2277e7106
commit e3c34c79be
15 changed files with 1058 additions and 593 deletions
--- a/tests/cpp/data/test_data.cc
+++ b/tests/cpp/data/test_data.cc
@@ -101,7 +101,6 @@ TEST(DMatrix, Uri) {
  std::string path = tmpdir.path + "/small.csv";

  std::ofstream fout(path);
-  ASSERT_TRUE(fout);
  size_t i = 0;
  for (size_t r = 0; r < kRows; ++r) {
    for (size_t c = 0; c < kCols; ++c) {