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Write a C program to calculate length of string using recursion

robaa
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2022-11-25
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Write a C program to calculate length of string using recursion. Here’s simple program to calculate length of string using recursion in C Programming Language.

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robaa
2022-11-25
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Recursion : :

  • Recursion is the process of repeating items in a self-similar way. In programming languages, if a program allows you to call a function inside the same function, then it is called a recursive call of the function.
  • The C programming language supports recursion, i.e., a function to call itself. But while using recursion, programmers need to be careful to define an exit condition from the function, otherwise it will go into an infinite loop.
  • Recursive functions are very useful to solve many mathematical problems, such as calculating the factorial of a number, generating Fibonacci series, etc.

Here is the source code of the C program to calculate length of string using recursion. The C Program is successfully compiled and run on a Windows system. The program output is also shown below.

 
 

SOURCE CODE : :

/*  C program to calculate length of string using recursion */

#include <stdio.h>

//function to calculate length of string using recursion

int stringLength(char *str)
{
    static int length=0;
    if(*str!=NULL)
    {
        length++;
        stringLength(++str);
    }
    else
    {
        return length;
    }
}

int main()
{
    char str[100];
    int length=0;

    printf("Enter any string :: ");
    scanf("%s",str);

    length=stringLength(str);

    printf("\nLength of String [ %s ] is :: %d\n",str,length);

    return 0;
}

Output : :

/*  C program to calculate length of string using recursion */

Enter any string :: CodezClub

Length of String [ CodezClub ] is :: 9

Process returned 0

Above is the source code for C program to calculate length of string using recursion which is successfully compiled and run on Windows System.The Output of the program is shown above .

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C Recursion Solved Programs – C Programming
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