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Join Date: Dec 2004
Location: Hong Kong, SAR
Posts: 22
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Rep Power: 4
Solved Threads: 1
Newbie Poster
while(true) loop + getline() = infinite loop?? Dear all,
Forgive me for posting two threads for the same problem. I was not showing my problem clearly enough in the previous one. Thank Narue for answering that anyway. Now I do it again here:
This programme runs fine when I compile and click the executable. But things go wrong if I do it in command-line and redirect the input stream to a text file:
$a.out < inputFile
*The programme does not let me do any input and it loops again and again instead.* I guest this is a problem associated with getline() function.
So what do you think about this?
Jim
Forgive me for posting two threads for the same problem. I was not showing my problem clearly enough in the previous one. Thank Narue for answering that anyway. Now I do it again here:
#include <iostream>
#include <string>
using namespace std;
int main(void)
{
string inputStr;
while (true)
{
getline(cin, inputStr);
if (inputStr == "quit") break;
cout << inputStr << endl;
}
return 0;
}This programme runs fine when I compile and click the executable. But things go wrong if I do it in command-line and redirect the input stream to a text file:
$a.out < inputFile
*The programme does not let me do any input and it loops again and again instead.* I guest this is a problem associated with getline() function.
So what do you think about this?
Jim
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Join Date: Apr 2004
Posts: 3,418
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Originally Posted by jimFan
This programme runs fine when I compile and click the executable. But things go wrong if I do it in command-line and redirect the input stream to a text file:
$a.out < inputFile
Or do you mean to redirect the output to a file?
$a.out > inputFile •
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Join Date: Dec 2004
Location: Hong Kong, SAR
Posts: 22
Reputation:
Rep Power: 4
Solved Threads: 1
Newbie Poster
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Originally Posted by Dave Sinkula
Don't you mean input from? What are the contents of your input file?
Or do you mean to redirect the output to a file?$a.out > inputFile
Hi Dave,
Oh sorry for my grammer. I actually mean input from:
$a.out < inputFile
Here is what the content of inputFile maybe:
ls changecc COMP271 5 quiz quit
The problem occur when the programme has read all the way to the last line:
The programme loops and does not ask me for input.
Jim
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