The bad() method of ios class in C++ is used to check if the stream is has raised any bad error. It means that this function will check if this stream has its badbit set. Syntax:
bool bad() const;
Parameters: This method does not accept any parameter. Return Value: This method returns true if the stream has badbit set, else false.
Time Complexity: O(1)
Auxiliary Space: O(1)
Example 1:
// C++ code to demonstrate
// the working of bad() function
#include <bits/stdc++.h>
using namespace std;
int main()
{
// Stream
stringstream ss;
// Using bad() function
bool isBad = ss.bad();
// print result
cout << "is stream bad: "
<< isBad << endl;
return 0;
}
Output:
is stream bad: 0
Example 2:
// C++ code to demonstrate
// the working of bad() function
#include <bits/stdc++.h>
using namespace std;
int main()
{
// Stream
stringstream ss;
ss.clear(ss.badbit);
// Using bad() function
bool isBad = ss.bad();
// print result
cout << "is stream bad: "
<< isBad << endl;
return 0;
}
Output:
is stream bad: 1