String

STRING :

String is an array of characters. A constant string is a group of characters defined between double quotation marks.

Ex.: char name[20];

The header file string.h is collection of string library functions.

String Related Library Function:

1.      strlen()

2.      strrev()

3.      strcpy()

4.      Strcat()

5.      Strcmp()

Note : %s is used to read character at a time & then print it. We can also used the %c but it is cannot helpful to read the character or string to read & print at a time

1)      strlen() -

This is a standard library function used to calculate the string length.

The syntax are as follows :

       i = strlen(string);

‘i’ is a integer variable

2)      strrev() –

This function is used to reverse the given string.

The syntax are as follows :

            strrev(string);

3)      strcpy() -

This function is to copy one string to another. It takes two arguments.

            strcpy(str1,str2);

4)      Strcat() -

String concatenation is used to join two strings.

Syntax :

            strcat(string1, string 2);

5)      Strcmp() –

String Compare function compares two strings with each other. If two strings are equal then function returns 0, else the difference between two strings. 

Syntax:

            strcmp(string1, string2);