What will be the output of the following C++ code?
#include <iostream>
#include <fstream>
using namespace std;
int main ()
{
int length;
char * buffer;
ifstream is;
is.open ("sample.txt", ios :: binary );
is.seekg (0, ios :: end);
length = is.tellg();
is.seekg (0, ios :: beg);
buffer = new char [length];
is.read (buffer, length);
is.close();
cout.write (buffer, length);
delete[] buffer;
return 0;
}
#include <iostream>
#include <fstream>
using namespace std;
int main ()
{
int length;
char * buffer;
ifstream is;
is.open ("sample.txt", ios :: binary );
is.seekg (0, ios :: end);
length = is.tellg();
is.seekg (0, ios :: beg);
buffer = new char [length];
is.read (buffer, length);
is.close();
cout.write (buffer, length);
delete[] buffer;
return 0;
}A. This is sample
B. sample
C. Error
D. Runtime error
Answer: Option D
This Question Belongs to C Plus Plus Programming >> C Plus Plus Miscellaneous
What does the 'sizeof' operator return in C++?
A. Size of a data type in bits
B. Size of a data type in bytes
C. Size of a variable in bytes
D. Size of a variable in bits
What is the purpose of the 'static' keyword in C++?
A. To declare a variable with dynamic storage duration
B. To declare a constant
C. To declare a variable with external linkage
D. To declare a variable with static storage duration
What is the difference between '++i' and 'i++' in C++?
A. None of the above
B. They both have the same effect
C. '++i' increments the value of 'i' before returning it, while 'i++' increments the value of 'i' after returning it
D. '++i' increments the value of 'i' after returning it, while 'i++' increments the value of 'i' before returning it
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