fgets() function atomatically breaking line when string is printed

Question

#include <stdio.h>

void main () {
    char str[5];
    fgets(str, sizeof(str), stdin);
    printf("%s.", str);
}

I wrote this simple code in C, and I'm trying to print a string and a dot in a single line, but whenever I enter a string with 3 or less characters, the output has a line break after the string.

Input:

abc

Output:

abc
.

If I enter something with exactly 4 characters, the output is as I want, without the line break.

I've tried using the gets() and scanf() functions and they worked well, but I cannot use them.

Does someone know why it happens and a solution?

Answer 1

The issue is fgets() reads the newline char. You need to take out the newline character which is getting appended in you char array.

After fgets(str, sizeof(str), stdin); You can write below line to get rid of that newline character

str[strlen(str)-1]='\0'; or alternatively you can do like,

char * p=NULL;
p= strchr(str,'\n');
if(p!=NULL)
{
 *p='\0';
}