Differences between Puts and Gets in C Programming | C programming
Differences between "puts" and "gets" in C Programming
We can read a string using the %s conversion
specification in the scanf function. However, it has a limitation that the
strings entered cannot contain spaces and tabs. To overcome this problem, the C
standard library provides the gets function. It allows us to read a line of
characters (including spaces and tabs) until the newline character is entered,
i. e., the Enter key is pressed. A call to this function takes
the following form:
gets(s);
where s is an array of char, i. e., a
character string. The function reads characters entered from the keyboard until a newline is entered and stores them in the argument string s, The newline
character is read and converted to a null character (\O) before it is stored in
s. The value returned by this function, which is a pointer to the argument
string s, can be ignored. The C standard library provides another function
named puts to print a string on the display. A typical call to this function
takes the following form:
puts(s);
where s is an array of char, i. e., a
character string. This string is printed on the display followed by a newline
character.
Example: String I/O using the gets and
puts function
Consider the code segment given below.
char str[81];
puts("Enter a line of text:\n");
gets (str);
puts("You entered:\n")
puts(str);
A line of text typically contains 80
characters. Thus, the array str has been declared to store 81 characters
with a provision to store the null terminator. The output of this code segment
is shown below.
Enter a line of text:
Programming in C language is fun'
You entered:
Programming in C language is fun!
