Length of a String Using Pointers in C

 A simple program that will count the length of the given string using pointers and functions in C programming language.

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Program Listing

#include <stdio.h>

int stringLength(const char *str) {
    int length = 0;
    const char *ptr = str; // Initialize a pointer to the beginning of the string

    while (*ptr != '\0') { // Iterate until the null character is encountered
        length++;
        ptr++; // Move the pointer to the next character
    }

    return length;
}

int main() {
    const char *str = "COBOL";
    int length = stringLength(str);

    printf("\n\n");
    printf("\tLength of a String Using Pointers in C\n");
    printf("\n\n\tGiven String :  %s\n\n", str);
    printf("\tThe length of the string is: %d\n\n", length);

    return 0;
}