String Manipulations In C Programming Using Library Functions

Strings are often needed to be manipulated by programmer according to the need of a problem. All string manipulation can be done manually by the programmer but, this makes programming complex and large. To solve this, the C supports a large number of string handling functions.

There are numerous functions defined in "string.h" header file. Few commonly used string handling functions are discussed below:

Strings handling functions are defined under "string.h" header file, i.e, you have to include the code below to run string handling functions.

#include <string.h>

gets() and puts()

Functions gets() and puts() are two string functions to take string input from user and display string respectively as mentioned in previous chapter.

#include<stdio.h>
int main(){
    char name[30];
    printf("Enter name: ");
    gets(name);     //Function to read string from user.
    printf("Name: ");
    puts(name);    //Function to display string.
    return 0;
}

Though, gets() and puts() function handle string, both these functions are defined in "stdio.h" header file.