What is the best way to check xml against xsd schema in c++?

Question

C++ / C#

Good day!
Recommend a free cross-platform C++ library for checking an xml document against a schema. Looked Libxml2 - confuses the status "it is incomplete right now". There is a risk to use, is it really not working yet?
What to choose? The main criterion is the ability to check xml through sax, because the files are large.

Answer 1

Xerces-C++
https://xerces.apache.org/xerces-c/program-sax2-3....
https://xerces.apache.org/xerces-c/apiDocs-3/class... - supported loading the schema (GrammarType - Schema) into the SAX reader.