CODEWITHSUNDEEP
cinputstdinfgets
KWJ2104
KWJ2104

Reputation: 1989

Loop For User Input

I would like to write a program that keeps asking for user input until I break out of it with ctrl+D. Here is what I have:

char input[100];
while(input != EOF){
       printf("Give me a sentence:\n");
       fgets(input, 5, stdin);
       printf("your sentence was: %s\n", input);
}

I would like the fgets to start over with the first 5 characters of the new input, not like the 6th of the last input whenever it loops around, and I also do not know how to write the condition on the while to break it out through ctrl+D. Right now as you can see input (which is a char[] is being compared to EOF).

Thanks for any advice.

Upvotes: 1

Views: 583

Answers (2)

user406009
user406009

Reputation:

I think you are looking for the function feof.

char input[100];
while(!feof(stdin)){
       printf("Give me a sentence:\n");
       fgets(input, 5, stdin);
       printf("your sentence was: %s\n", input);
}

Upvotes: 1

hugomg
hugomg

Reputation: 69934

You shouldn't need to worry about "detecting" ctrl-D, as that is a shell thing that isn't seen by your program. You should consider using input redirection while you fix the code before worrying about the ctrl-D thing

./myExecutable < inputFile

Upvotes: 0

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