Function xmlTextReaderGetParserColumnNumber 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn xmlTextReaderGetParserColumnNumber(
    reader: *mut XmlTextReader,
) -> c_int

Return the parser column number of the current node.

UPSTREAM-PARITY

Upstream xmlTextReaderGetParserColumnNumber returns the input stream’s column. Columns are not tracked per-node in the candidate tree (upstream exposes -1 when no column information is available either); return -1.

int xmlTextReaderGetParserColumnNumber(xmlTextReaderPtr reader);

Safety

reader must be a valid pointer or NULL.