What happens when you attempt to compile and run the following code?#include <iostream>#include <fstream>#include <strin
Posted: Wed Aug 03, 2022 9:20 am
What happens when you attempt to compile and run the following code?#include <iostream>#include <fstream>#include <string>#include <list>#include <algorithm>#include <iomanip>using namespace std;class B { int val;public:B(int v=0):val(v){}int getV() const {return val;}operator int() const { return val; };};template<class T>struct Out {ostream & out;Out(ostream & o): out(o){}void operator() (const T & val ) {out<<setw(3)<<hex<<val; } }; int main () { int t[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; fstream f("test.out", ios::trunc|ios::out); list<B> l(t, t+10); for_each(l.begin(), l.end(), Out<B>(f)); f.close(); f.open("test.out"); for( ; f.good() ; ) {B i;f>>i;cout<<i<<" ";}f.close();return 0;}
A. file test.out will be opened writing
B. file test.out will be truncated
C. file test.out will be opened for reading
D. compilation error E. program will display sequence 1 2 3 4 5 6 7 8 9 10
A. file test.out will be opened writing
B. file test.out will be truncated
C. file test.out will be opened for reading
D. compilation error E. program will display sequence 1 2 3 4 5 6 7 8 9 10