Function xmlDocSetRootElement 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn xmlDocSetRootElement(
    doc: *mut _xmlDoc,
    root: *mut _xmlNode,
) -> *mut _xmlNode

Set the root element of a document.

UPSTREAM-PARITY

xmlNodePtr xmlDocSetRootElement(xmlDocPtr doc, xmlNodePtr root);

Returns the old root element (if any), which the caller must free.

SAFETY

• doc must be a valid document.
• root must be a valid node (ownership transfers to doc).