Question

1. Assume that, there is no strlen() function defined for us. Write a code segment using while loop that will calculate the length of the following declaration.

char stringVar[10] = “Hello”;

Note that, the length of the C-string variable stringVar is 5.

Can someone help me with this?

Answer 1

ANSWER: Here I am giving you the code and output please like it or comment your problem.

CODE:

#include <stdio.h>

int sizeOfString(char *ptr)// Here I am creating this function to count the character in the string pointer
// Here I stored the address of the first index into a pointer like ptr and we can increase the index untill we found the '\0' means end of the string.
{
int index = 0;
int count = 0;
while (*(ptr + index) != '\0')
{
++count;
++index;
}
return count;
}

int main()
{
char stringVar[10] = "Hello";
char *ptr=stringVar;
printf("Size of your string will be : %d",sizeOfString(ptr));
return 0;
}

OUTPUT:

Size of your string will be : 5