C++ getline(); displays one below

Question

I have a strange problem here. I'm getting 2 strings as input using the code below:

std::string input1, input2;
std::cout<<"Please enter name:";
std::getline(std::cin, input1);
std::cout<<"Address: ";
std::getline(std::cin,input2);

The issue I'm having is that instead of displaying one at a time, both display at once, so the output looks like this:

Please enter name: Address:

As a result neither string is getting any input.

Any ideas what the issue might be?

`std::cout>>"Please enter name:";`?! How did you get this to compile? It should be `< — Ami Tavory, Sep 19 '16 at 13:01
Can you show a [mcve]? Is there any other input going on prior to this? How are you launching the program? — Angew is no longer proud of SO, Sep 19 '16 at 13:03
Have a look at http://stackoverflow.com/questions/257091/how-do-i-flush-the-cin-buffer — RigidBody, Sep 19 '16 at 13:07
Put the code snippet inside `main` so that readers can compile and run it. I'll bet that you'll see that it works just fine, and that the problem is somewhere else. — Pete Becker, Sep 19 '16 at 13:42

score 3 · Accepted Answer · edited Sep 19 '16 at 13:43

3

Try using cin.ignore() before getline // ignores \n that has been left after user pressed enter key

edited Sep 19 '16 at 13:43

RigidBody

answered Sep 19 '16 at 13:04

That's done it, thanks – John Sep 19 '16 at 13:09
2

@JohnKressel This, however, means there *must* have been some prior input (contrary to what you said in comments). The input stream is empty at program startup. – Angew is no longer proud of SO Sep 19 '16 at 13:20

Ahsan · Answer 2 · 2016-09-20T06:24:18.000

0

Don't use

cin.ignore();

Because in loop it will ignore you required input as well. Use

cin>>ws;

Before getline. ws means white space this will ignore white space in your program and the code will work fine.

edited Sep 20 '16 at 06:24

answered Sep 19 '16 at 14:37

Ahsan

2 Answers2