[xml] out of memory condition with no exceptions option

["Prashanth R" <ramapra gmail com>]

hi , 

I have libxml2 configured with th e --without-fexceptions option. 

I am using the XMLParseChunk API call. 

if for some reason , there isnt sufficient memory and parsing fails, what will be the behaviour ? 

Will it gracefully exit ,returning an error code or will it crash throwing an exception  ?