CODEWITHSUNDEEP
cscanfgets
Mohammad Areeb Siddiqui
Mohammad Areeb Siddiqui

Reputation: 10179

gets() not working as expected

So first of all I would like to paste my code in here for future references:

int dayNum = 0;
printf("\n\nEnter your date(1 - 30/31): ");
scanf("%d\n", &dayNum);
printf("\n\nEnter your note:");
char note[10000];
gets(note);
printf("%s", note);

The code is I think self-explanatory and easy-to-understand. However, here is a quick and short explanation from my side. This code just gets an integer input and stores it into a variable and then gets ready to take a string as an input and print it out to the console.

What I expect:

I expect the code to run like this:

Enter your date(1 - 30/31): <my_input>

Enter your note: <my_long_note>

<my_long_note> //prints my note that I wrote above

What is happening:

But, what is happening right now is like this(abnormal):

Enter your date(1 - 30/31): <my_input>
<my_long_note> //this is an input

Enter your note: <my_long_note> //this is an output

As you can see, it takes my note before printing out Enter your note:.

Can someone tell me why is that happening? I am not quite sure of what did I do wrong in there.

Upvotes: 0

Views: 42

Answers (2)

Mohammad Areeb Siddiqui
Mohammad Areeb Siddiqui

Reputation: 10179

Ah, so after another search, I found this:

Using scanf("%d%*c", &a). The %*c term causes scanf to read in one character (the newline) but the asterisk causes the value to be discarded.

So my final code became this:

int dayNum = 0;
printf("\n\nEnter your date(1 - 30/31): ");
scanf("%d%*c", &dayNum);
printf("\n\nEnter your note:");
char note[10000];
gets(note);
printf("%s", note);

And, it worked.

Upvotes: 0

Yeraze
Yeraze

Reputation: 3289

You need to flush your output stream.. That means including a \n in the printf, or by manually calling fflush(stdout).

Upvotes: 2

Related Questions