Function IsTextRangeSet

cpp/src/arrow/util/uri.cc:50–50

There can be a difference between an absent field and an empty field. For example, in "unix:/tmp/foo", the host is absent, while in "unix:///tmp/foo", the host is empty but present. This function helps distinguish.

// "unix:///tmp/foo", the host is empty but present.
// This function helps distinguish.
bool IsTextRangeSet(const UriTextRangeStructA& range) { return range.first != nullptr; }

#ifdef _WIN32
bool IsDriveSpec(const std::string_view s) {