Function tx_document_error_name 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn tx_document_error_name(
    doc: *mut TxDocument,
) -> *const c_char

Returns the error name string, or null if no error.

The returned pointer is valid until the next mutating operation on the document or until the document is freed.

Safety

doc must be a valid, non-null pointer to a TxDocument.