Find the Length of given String using Pointers

Description

Get a String and count the characters in the string
Input:
Hello
Output:
5

Solution

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int main()
{
	char *str,temp;
	int i = 0;
	str=calloc(sizeof(char),50);
	fgets(str,50,stdin);
	while(*(str+i)!='\0'&& *(str+i)!='\n')
	{
		i++;
		
	}
	printf("%d",i);
	return 0;
}

	

Explanation

Get a String using fgets() function. 
Str -> reads the string and stores it in str.
50 -> reads maximum of 50 characters
stdin-> reads character from keyboard

while loop iterates untill str has  or 
. variable I increaments at each iteration, so finally i is the length of String.