c++ while loop repeats

Question

I have the following code. When something like jackpot is inputted, it prints out the cout 8 times, once for each character. Why is it doing this? Information is a structure and number is an integer.

do { cout <<"Please input a valid number."<< endl; cin>>information.number; if (!cin) { cin.clear(); cin.ignore(); } } while(information.number> 12 || information.number< 1);

Look again: en.cppreference.com/w/cpp/io/basic_istream/ignore — Qaz
– Qaz, Commented Mar 11, 2013 at 6:06

perreal · Accepted Answer · 2013-03-11 06:09:12Z

You can specify a maximum ignore length length and an ignore delimiter:

do { cout <<"Please input a valid number."<< endl; cin>>information.number; if (!cin) { cin.clear(); cin.ignore(1024, '\n'); // ignore up to 1024 chars. until '\n' } } while(information.number> 12 || information.number< 1);

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