CODEWITHSUNDEEP
c++getline
asteig
asteig

Reputation: 107

C++ Issue - getline skips first input

Tthe issue is that the part that uses getline() doesn't take input the first time, it just says "Enter a string: Enter a string:" and then you can put input there.

#include <iostream>
#include <string>

using namespace std;

int main()
{
  int nums[100], key=0, num = 0;

  while(num != -1)
  {
    cout << "Enter a positive integer (-1 to exit): ";
    cin >> num;

    if(num != -1)
    {
      nums[key] = num;
      key++;
    }

  }

    if(num != -1)
    {
      nums[key] = num;
      key++;
    }

    int numElements = key;
    string inStrings[100];

    for(int i=0; i < numElements; i++)
    {
      cout << "\n";
      cout << "Enter a string: ";
      getline(cin, inStrings[i]);
    }

    for(int i=0; i < numElements; i++)
    {
      cout << nums[i] << " :: " << inStrings[i];
    }

}

Upvotes: 3

Views: 9015

Answers (1)

Michael Burr
Michael Burr

Reputation: 340436

The problem is that you first use cin >> num; to read a number, but that's leaving a newline in the stream which the getline() call reads.

Maybe add a cin.ignore(1,'\n'); after the cin >> num; to eat that stray newline.

Upvotes: 11

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