Strings in C Language Tutorial Notes Study Material with Examples

Strings

In C language, strings are stored in an array of character (char) type along with the null terminating character “\O” at the end.

char name [ ] = {‘K’, ‘R’ , ’I’, ‘S’, ‘H ‘ , ‘A’, ‘\O’};

‘\O’= Null character whose ASCII value is 0.

‘ 0’ = ASCII value is 48.

In the above declaration ‘\0’ is not necessary. C inserts the null character automatically.

# include <stdio.h>

void main ( )

{

char name ] = “RAM”;

printf (“%s”, name);

}

% s = It is used in printf ( ) as a format specification for printing out a string.

All the following notations refer to the same element

name [i] *(name+i)

* (i + name)

q [name]

# include <stdio.h>

void main ( )

{

char name [ ]= “shyam”;

char * ptr;

ptr = name; / *store base address of string while (*ptr ! = \O’ )

{

printf (“%c”, *prt);

ptr + +;

}

Note : The above program is used to print all the characters of an string using pointer.

Use strlen( ) function to get the length of a string minus the null terminating character.

Syntax int strlen(string);

The strcat( ) function appends one string to another.

Syntax char * strcat(string 1, string 2);

To copy one string to another string variable, we use strcpy( ) function.

Syntax strcpy(string 1, string 2);

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