Repository: arrow Updated Branches: refs/heads/master ff39cb5e1 -> 8ceee5662
ARROW-1543: [C++] Correct C++ tutorial to use std::unique_ptr instead of std::shared_ptr Author: Wes McKinney <wes.mckin...@twosigma.com> Closes #1157 from wesm/ARROW-1543 and squashes the following commits: 82e7593f [Wes McKinney] Add missing namespace 8afcc602 [Wes McKinney] Tweaks 7df6dd23 [Wes McKinney] Correct C++ tutorial to use std::unique_ptr instead of std::shared_ptr Project: http://git-wip-us.apache.org/repos/asf/arrow/repo Commit: http://git-wip-us.apache.org/repos/asf/arrow/commit/8ceee566 Tree: http://git-wip-us.apache.org/repos/asf/arrow/tree/8ceee566 Diff: http://git-wip-us.apache.org/repos/asf/arrow/diff/8ceee566 Branch: refs/heads/master Commit: 8ceee56622c9503b75d1c1023747f2e3c28be109 Parents: ff39cb5 Author: Wes McKinney <wes.mckin...@twosigma.com> Authored: Wed Oct 4 11:04:57 2017 -0400 Committer: Wes McKinney <wes.mckin...@twosigma.com> Committed: Wed Oct 4 11:04:57 2017 -0400 ---------------------------------------------------------------------- cpp/apidoc/tutorials/row_wise_conversion.md | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/arrow/blob/8ceee566/cpp/apidoc/tutorials/row_wise_conversion.md ---------------------------------------------------------------------- diff --git a/cpp/apidoc/tutorials/row_wise_conversion.md b/cpp/apidoc/tutorials/row_wise_conversion.md index e91c26e..5d61eca 100644 --- a/cpp/apidoc/tutorials/row_wise_conversion.md +++ b/cpp/apidoc/tutorials/row_wise_conversion.md @@ -57,12 +57,15 @@ is referenced by the offsets in the former array. // the underlying memory regions in-place. At the moment, arrow::jemalloc is only // supported on Unix systems, not Windows. -arrow::Int64Builder id_builder(arrow::default_memory_pool()); -arrow::DoubleBuilder cost_builder(arrow::default_memory_pool()); -std::shared_ptr<DoubleBuilder> components_values_builder = - std::make_shared<DoubleBuilder>(arrow::default_memory_pool()); -arrow::ListBuilder components_builder(arrow::default_memory_pool(), - components_values_builder); +using arrow::DoubleBuilder; +using arrow::Int64Builder; +using arrow::ListBuilder; + +arrow::MemoryPool* pool = arrow::default_memory_pool(); +Int64Builder id_builder(pool); +DoubleBuilder cost_builder(pool); +std::unique_ptr<DoubleBuilder> components_values_builder(new DoubleBuilder(pool)); +ListBuilder components_builder(pool, std::move(components_values_builder)); ``` Now we can loop over our existing data and insert it into the builders. The
