Why does the first gets() not work in this code?

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I have tried this code (in multiple programs) using dev c++ and code::Blocks but the first gets() command will never get executed when followed by a cin>>

C++

#include<iostream>
#include<stdio.h>
using namespace std;
int main()
{
    int i;
    char c[10], d[10];
    cout<<"Enter int ";
    cin>>i;
    cout<<"Enter string ";
    gets(c); // this is where things act all possessed
    cout<<"Enter 2nd string ";
    gets(d);
    cout<<i<<endl<<c<<endl<<d;
    return 0;
}

Please help me out

What I have tried:

I have tried taking variable i as char, then taking the input using only gets()'s, which works flawlessly
but then i strictly need to take it as an integer, in some programs, to be able to do stuff like increment/decrement/whatever

Posted 6-Nov-16 21:28pm

rajducky

Updated 6-Nov-16 23:10pm

CPallini

v3

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CPallini 7-Nov-16 4:39am

Don't mix C++ streams with C stdio, unless you really know what you are doing, see, for instance:
http://www.drdobbs.com/the-standard-librarian-iostreams-and-std/184401305

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Richard MacCutchan · Answer 1 · 2016-11-06T22:21:00

That is because cin reads only the amount of characters necessary to construct the variable i. After which the input buffer still contains other characters or whitespace up to the end of the input line, including the newline character(s) at the end. So the call to gets will return just that data, rather than waiting for more input from the user. You should use cin.getline to consume those extra characters, and also to read in complete strings, rather than using gets.

CPallini · Answer 2 · 2016-11-06T23:10:00

What's wrong with C++ strings and streams?

C++

#include <iostream>
#include <string>
using namespace std;

int main()
{
    int i;
    string c,d;
    cout<<"Enter int ";
    cin>>i;
    cout<<"Enter string ";
    cin >> c;
    cout<<"Enter 2nd string ";
    cin >> d;
    cout<<i<<endl<<c<<endl<<d<<endl;
    return 0;
}

Why does the first gets() not work in this code?

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