C++ miscellaneous
practice.

What is the use of clog?

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
template <typename T = float, int count = 3>
T multIt(T x)
{
    for(int ii = 0; ii < count; ii++)
    {
        x = x * x;
    }
    return x;
};
int main()
{
    float xx = 2.1;
    cout << xx << ": " << multIt<>(xx) << endl;
}

What will be the output of the following C++ code?

#include<iostream>
using namespace std;
int main()
{
    int a = 5;
    auto check = [=]() 
    {
	a = 10;
    };
    check();
    cout<<"Value of a: "<<a<<endl;
    return 0;
}

What will be the output of the following C++ code?

#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
int main () 
{
    vector<int> first (5, 10);
    vector<int> second (5, 33);
    vector<int>::iterator it;
    swap_ranges(first.begin() + 1, first.end() - 1, second.begin());
    cout << " first contains:";
    for (it = first.begin(); it != first.end(); ++it)
        cout << " " << *it;
    cout << "\nsecond contains:";
    for (it = second.begin(); it != second.end(); ++it)
        cout << " " << *it;
    return 0;
}

What will be the output of the following C++ code?

#include <vector>
#include <iostream>
#include <typeinfo>
#include <stdexcept>
using namespace std;
int main()
{
    vector<int> vec;
    vec.push_back(10);
    int i = vec[100];
    try {
        i = vec[0];
        cout << i << endl;
    }
    catch (exception &e)
    {
        cout << "Caught: " << e.what( ) << endl;
        cout << "Type: " << typeid( e ).name( ) << endl;
    }
    catch (...) 
    {
        cout << "Unknown exception: " << endl;
    }
    return 0;
}

What is the use of the 'finally' keyword?

Which mathematics library is used for vector manipulation in c++?

What will be the output of the following C++ code?

#include <iostream>
#include <algorithm>
#include <vector>
#include <utility>
using namespace std;
bool mypredicate (int i, int j)
{
    return (i == j);
}
int main () 
{
    vector<int> myvector;
    for (int i = 1; i < 6; i++) myvector.push_back (i * 10);
    int myints[] = {10, 20, 30, 40, 1024};
    pair<vector<int> :: iterator, int*> mypair;
    mypair = mismatch (myvector.begin(), myvector.end(), myints);
    cout  << *mypair.first<<'\n';
    cout  << *mypair.second << '\n';
    ++mypair.first; ++mypair.second;
    return 0;
}

What will be the output of the following C++ code?

#include <iostream>
#include <memory>
#include <string>
using namespace std;
int main () 
{
    pair <string*, ptrdiff_t>
    result = get_temporary_buffer<string>(3);
    if (result.second > 0)
    {
        uninitialized_fill ( result.first, result.first + result.second, 
        "Hai" );
        for (int i=0; i<result.second; i++)
            cout << result.first[i] ;
        return_temporary_buffer(result.first);
    }
    return 0;
}

What is the correct syntax of constructing any using parameterized constructor?

Which of the following operator is used to capture all the external variable by value?

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
int main( )
{
    char line[100];
    cin.getline( line, 100, 't' );
    cout << line;
    return 0;
}

How many types of inheritance are there in c++?

Which of the following function is used to initialize a tuple?

Which of the following header file is required to use in-bulit functors of C++?

What will be the output of the following C++ code?

#include <iostream>
#include <cctype>
using namespace std;
int main(int argc, char const *argv[])
{
    char arr[27] = "abcdefghijklmnopqrstuvwxyz";
    for(int i=0;i<27;i++)
    {
	cout<<(bool)isxdigit(arr[i]);
    }
}

What will be the output of the following C++ code?

#include <iostream> 
#include <vector> 
 
using namespace std; 
 
int main() 
{ 
    vector<int> v; 
 
    for (int i = 1; i <= 5; i++) 
        v.push_back(i); 
 
    cout<<v.size();
    cout<<endl<<v.capacity();  
    return 0; 
}

What will be the output of the following C++ code?

#include <iostream>
using namespace std;
template <class type>
class Test
{
    public:
    Test()
    {
    };
    ~Test()
    {  
    };
    type Funct1(type Var1)
    {
        return Var1;
    }
    type Funct2(type Var2)
    {
        return Var2;
    }
};
int main()
{
    Test<int> Var1;
    Test<double> Var2;
    cout << Var1.Funct1(200);
    cout << Var2.Funct2(3.123);
    return 0;
}

Which header file is used to create the pseudo random generator?

How many kind of operation can be applied to transform method in c++?