Try this: #include <stdio.h> int main() { char str[50]; printf(“Enter a string : “); gets(str); printf(“You entered: %s”, str); return(0); } 2 solved How to use the gets() command to take text input and display output using printf statement in c language? [closed]
The gets function expects s to point to a character array that can accept a string. But in this case, s is uninitialized. So gets tries to dereference an uninitialized pointer. This invokes undefined behavior. If you were to set s to point to a preexisting array or if you used malloc to allocate space, … Read more
The problem is indeed here. char instring[2]; Now let’s think about this line. gets(instring); Let’s say you type 10 and hit enter. What will go into instring is three bytes. 1 0 A terminating null. instring can only hold two bytes, but gets will shove (at least) three in anyway. That extra byte will overflow … Read more