CPP practice question 4 of 30
What happens when you attempt to compile and run the following code? #include #include #include #include using namespace std; class B { int val…
Choose your answer, then check it against the explanation.
What happens when you attempt to compile and run the following code?
#include
#include
#include
#include
using namespace std;
class B { int val;
public:
B(int v):val(v){} B(){}
int getV() const {return val;} bool operator > (const B & v) const { return val>v.val;} };
ostream & operator <<(ostream & out, const B & v) { out<<v.getV(); return out;}
templatestruct Out {
ostream & out;
Out(ostream & o): out(o){}
void operator() (const T & val ) { out<<val<<" "; } };
int main() {
int t[]={8, 10, 5, 1, 4, 6, 2, 7, 9, 3};
deque d1(t, t+10);
sort(d1.begin(), d1.end(), greater());
deque::iterator it = lower_bound(d1.begin(), d1.end(), 4,greater());
for_each(it, d1.end(), Out(cout));cout<<endl;
return 0;
}
Program outputs:
Question 4 of 30
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