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POWhy does this code involving cin skip getline even with cin.ignore()?
 

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  1. POWhy does this code involving cin skip getline even with cin.ignore()?
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    <p>The following code works as intended for the first two getlines and after you input the CC variable it goes into an infinite loop skipping the getlines and not waiting for input.</p> <p>Here is a sample run:</p> <p>Enter card holder name (or quit): John Doe</p> <p>Enter CC number: 1234 1234 1234 1555</p> <p>// code outputs the other couts but does not wait for input of getline. and reiterates the cout statements. cin.ignore does not seem to help or cin.clear()</p> <p>Code:</p> <pre><code> int main(int argc, char* argv[]) { char CCName[64]; //cardholder name char CCNumber[16]; //credit card number char Expiration[8]; //expiration date float Amount; while (true) { /* input processing block */ //gather card holder name cout &lt;&lt; "\nEnter card holder name (or quit): "; cin.getline(CCName, 64); //quit command processing if (strcmp(CCName, "quit") == 1) { cout &lt;&lt; "\nYou successfully terminated the program\n"; //~ close(sockfd); //close socket exit(EXIT_SUCCESS); } //gather credit card number cout &lt;&lt; "\nEnter CC number: "; cin.getline(CCNumber, 16); //error checking if (strlen(CCNumber) != 15 &amp;&amp; strlen(CCNumber) != 16) { cout &lt;&lt; "\nCredit card number must be 15 to 16 digits, try again: "; cin.getline(CCNumber,16); } //gather expiration date cout &lt;&lt; "\nEnter expiration: "; cin.ignore(); cin.getline(Expiration, 7); //error checking if (strlen(Expiration) != 7) { cout &lt;&lt; "\nExpiration date format mm/yyyy. Try again: "; cin.getline(Expiration, 7); } //gather amount cout &lt;&lt; "\nEnter amount: "; cin &gt;&gt; Amount; } return 0; } </code></pre>
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    1. This table or related slice is empty.
    1. COYour char array must be 17 char long. Your forgot you need to add 1 more char because of the terminating character.
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      1. POWhy does this code involving cin skip getline even with cin.ignore()?
      1. USAlexandre TryHard Leblanc
    2. COI would recommend that you use the `std::getline` overload that takes a `std::string` as second argument. It removes the need to control the sizes of the inputs and provides for automated management of the memory stored in the string (rather than having to deal with the arrays manually)
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      1. POWhy does this code involving cin skip getline even with cin.ignore()?
      1. USDavid Rodríguez - dribeas
 

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