C + + Primer Fifth Edition, chapter eighth answer

8.1 8.2/** C + + primer exercise.* Test file.*/#include <iostream>using namespace Std;istream & Read_write (istre    Am &in) {//char cval;    int ival;    while (In>>ival) cout<<ival<< ";    In.clear (); return in;}        int main (int argc, char* argv[]) {read_write (CIN);    System ("pause"); return 0;} 8.3 read type mismatch, EOF, a system-level unrecoverable state occurs. 8.4/** C + + primer exercise.* Test file.*/#include <iostream> #include <fstream> #include <vector>#    Include <string>using namespace Std;int main (int argc, char* argv[]) {string sval;    Vector<string> Svec;    Ifstream in (* (argv+1));            if (in) {while (Getline (In,sval)) {svec.push_back (sval);        cout<<sval<<endl;        }}else{cerr<< "Can not open:" + string (* (argv+1));    return-1;    } for (unsigned int i=0;i<svec.size (); ++i) {cout<<svec[i]<<endl;    } system ("Pause"); return 0;}8.5/** C + + primer exercise.* Test file.*/#include <iostream> #include <fstream> #include <vector>#    Include <string>using namespace Std;int main (int argc, char* argv[]) {string sval;    Vector<string> Svec;    Ifstream in (* (argv+1));            if (in) {while (in>>sval) {svec.push_back (sval);        cout<<sval<<endl;        }}else{cerr<< "Can not open:" + string (* (argv+1));    return-1;    } for (unsigned int i=0;i<svec.size (); ++i) {cout<<svec[i]<<endl;    } system ("Pause"); return 0;}

C + + Primer Fifth Edition, chapter eighth answer