#include <iostream>#include <sstream> class null_filter_buf:publicstd::streambuf{std::streambuf* src;char ch;// single-byte bufferprotected:int underflow(){        traits_type::int_type i;while((i= src->sbumpc())=='\0');// skip zeroesif(!traits_type::eq_int_type(i, traits_type::eof())){            ch= traits_type::to_char_type(i);            setg(&ch,&ch,&ch+1);// make one read position available}return i;}public:    null_filter_buf(std::streambuf* buf): src(buf){        setg(&ch,&ch+1,&ch+1);// buffer is initially full}}; void filtered_read(std::istream& in){std::streambuf* orig= in.rdbuf();    null_filter_buf buf(orig);    in.rdbuf(&buf);for(char c; in.get(c);)std::cout<< c;    in.rdbuf(orig);} int main(){char a[]="This i\0s\0an e\0\0\0xample";std::istringstream in(std::string(std::begin(a),std::end(a)));    filtered_read(in);}

This is an example