getline(superstring, 30); is equivalent to which of the following?
A) cin.getline(superstring, 30, '\0');
B) cin.getline(superstring, 30, '
');
C) cin.getline(superstring, 30, '\s');
D) cin.getline(superstring, 30, ' ');

Question

getline(superstring, 30); is equivalent to which of the following?
A) cin.getline(superstring, 30, '\0');
B) cin.getline(superstring, 30, '
');
C) cin.getline(superstring, 30, '\s');
D) cin.getline(superstring, 30, '	');

Quizplus · Accepted Answer

The second argument of getline specifies the maximum number of characters to read, and the third argument specifies the delimiter. In this case, the delimiter is '
', which indicates that getline should stop reading when it encounters a newline character. Choice A uses the null character ('\0') as the delimiter, which is not commonly used to terminate input. Choice C uses the whitespace character ('\s') as the delimiter, but there is no such thing as the whitespace character in C++. Choice D uses the tab character ('	') as the delimiter, which would only work if the input string contains tabs as delimiters.

Getline(superstring, 30); Is Equivalent to Which of the Following