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STRLEN() FUNCTION

The strlen() function calculates the length of a given string.

Syntax:


int n = strlen(const char *str);

The function takes a single argument, i.e, the string variable whose length is to be found, and returns the length of the string passed.

The strlen() function is defined in <string.h> header file.





1A_Pro18: W.A.P to perform strlen() function on string.


#include<stdio.h>
#include<string.h>
void main()
{
          char a[20]="Program";
          char b[20]={'P','r','o','g','r','a','m','\0'};
          char c[20];
          clrscr();
          printf("Enter string: ");
          gets(c);
          printf("Length of string a = %d \n",strlen(a));
          //calculates the length of string before null charcter.
          printf("Length of string b = %d \n",strlen(b));
          printf("Length of string c = %d \n",strlen(c));
          getch();


Output:



PPS PREPARATION 3:

Preparation Questions 3: 1) WHILE Loop (With Syntax and Program) 2) DO  WHILE Loop  (With Syntax and Program) 3) FOR loop  (With Syntax and ...