Commits

Wes McKinney authored d111a77e112
ARROW-3870: [C++] Add Peek to InputStream abstract interface Default implementation returns a 0-length `arrow::util::string_view` Author: Wes McKinney <wesm+git@apache.org> Closes #3064 from wesm/ARROW-3870 and squashes the following commits: 6d9b411a0 <Wes McKinney> Fix another usage b6173295a <Wes McKinney> Comparing std::string with arrow::util::string_view seems not to work with MSVC 30271b111 <Wes McKinney> Add InputStream::Peek base API and default implementation returning 0-length string