Yes, you can input multiple items from cin, using exactly the syntax you describe. The result is essentially identical to: This is due to a technique called “operator chaining”. Each call to operator>>(istream&, T) (where T is some arbitrary type) returns a reference to its first argument. So cin >> a returns cin, which can … Read more
You are not inputting or outputting the characters correctly. char letter[2] is an array of 2 characters, not a single character. You want char letter. Further, you are outputting letter[2], which is the third element of an array that only has two values (indexing in C++ starts from 0; the first element is letter[0] and … Read more
Here is my code: when I type: 12345 6789 It gives me: 6789 Why I failed to save the 5 words char array ‘inp’ and it showed nothing? The second input looks normal though. However, when I set out[3] or out[5], it seems to work alright? It seem that two char array of [5] then … Read more
This line ignores the rest of the current line, up to ‘\n’ or EOF – whichever comes first: ‘\n’ sets the delimiter, i.e. the character after which cin stops ignoring numeric_limits<streamsize>::max() sets the maximum number of characters to ignore. Since this is the upper limit on the size of a stream, you are effectively telling cin that there is no limit to the number of … Read more
Possibly: This would read in and ignore everything until EOF. (you can also supply a second argument which is the character to read until (ex: ‘\n’ to ignore a single line). Also: You probably want to do a: std::cin.clear(); before this too to reset the stream state.
Welcome to the exciting world of C++! Short answer: you’re passing Store as a value. All your menu functions should take a Store& or Store* instead. When you’re passing Store as a value then an implicit copy is done (so the mainStore variable is never actually modified). When you return from the function the Store::~Store … Read more
You have to use cin.getline():
You are almost there, the error is most probably1 caused because you are trying to call getline with second parameter stringstream, just make a slight modification and store the data within the std::cin in a string first and then used it to initialize a stringstream, from which you can extract the input: 1. Assuming you have included:
You can check like this: Furthermore, you can continue to get input until you get an int via: EDIT: To address the comment below regarding input like 10abc, one could modify the loop to accept a string as an input. Then check the string for any character not a number and handle that situation accordingly. … Read more
cin.fail() returns true if the last cin command failed, and false otherwise. An example: Now suppose you have a text file – input.txt and it’s contents are: When you will run above short program on that, it will result like: it will not continue after 6th value as it quits after reading the seventh word, because that … Read more