Thread: problem with cin.getline()

my program compiles fine, but when i use cin.getline(); to get some data, i believe it reads the return from a previous cin so it blows through the code during runtime before i can even enter any information, i've put more cin's after the cin.getline, and they don't get skipped over, just the cin.getline();...here's the code, it's fairly short, can anyone help me with this bug?

Code:

#include <iostream>
#include <fstream>
#include <stdio>
using namespace std;

char id[500000];
char fileHandle[]=".txt";
char* fileName;
char input[100000];

int main() {

cout<<"PORTFOLIO EDITOR-FILE CREATION TEST"<<endl;
cout<<"Basically you type in the id number, it gets used in the creation of a file called that number plus .txt"<<endl;
cout<<"ENTER ID NUMBER"<<endl;
cin>>id;
cout<<"Now give me something to write into the file"<<endl;

cin.getline(input,99990,'\n');



fileName=strcat(id,fileHandle);
ofstream fout(fileName);
fout<<input;
fout.close();

return 0;
}

thanks