How to use the gets function in the C language?

In the C language, the gets function is used to read a line of string from the standard input stream. Its usage is as follows:

char str[100];
printf("Enter a string: ");
gets(str);

In the example above, we first declare a character array str to store the input string. We then print a message using the printf function. Finally, we use the gets function to read a line of string input from the user and store it in the str array.

It is important to note that the gets function has security issues as it does not provide buffer overflow protection. To avoid potential buffer overflow problems, it is recommended to use the fgets function instead, which offers more powerful and secure functionality. Here is how to use the fgets function:

char str[100];
printf("Enter a string: ");
fgets(str, sizeof(str), stdin);

When using the fgets function, it is necessary to specify the maximum number of characters to read (including the null terminator) and from which stream to read (in this case, the standard input stream stdin).