I’ve been working on a C++ project in visual studio 2012 console mode and I keep getting this strange persistent error with the cin function. Under the >> I get a red line and the program tells me no operator matches these operands. I have initialized all the array elements in a separate method. Here’s a snippet example (The actual … Read more
or, better:
Issue is saying that string doesn’t have the operator>> method, but it does… Did you forget #include <string> at the top of that file? Maybe try using getline(std::cin, allTaxiDetails[I].taxiRank, ‘\n’);. Define operator>> for your struct.
The cin.clear() clears the error flag on cin (so that future I/O operations will work correctly), and then cin.ignore(10000, ‘\n’) skips to the next newline (to ignore anything else on the same line as the non-number so that it does not cause another parse failure). It will only skip up to 10000 characters, so the code is assuming the user will … Read more
Ignore is exactly what the name implies. It doesn’t “throw away” something you don’t need instead, it ignores the amount of characters you specify when you call it, up to the char you specify as a breakpoint. It works with both input and output buffers. Essentially, for std::cin statements you use ignore before you do a getline call, because … Read more
I am having trouble rounding a GPA double to 2 decimal places. (ex of a GPA needed to be rounded: 3.67924) I am currently using ceil to round up, but it currently outputs it as a whole number (368) here is what I have right now using the above code with 3.67924 would output 368 … Read more
In case with char*, std::cin.getline getting line, instead of std::cin getting first word.
What is happening here is that std::cin >> firstName; only reads up to but not including the first whitespace character, which includes the newline (or ‘\n’) when you press enter, so when it gets to getline(std::cin, articleTitle);, ‘\n’ is still the next character in std::cin, and getline() returns immediately. Adding ‘std::cin >> std::ws‘ (ws meaning … Read more