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Write a function that locates a character in a string.Prototype: char *_strchr(char *s, char c);Returns a pointer to the first occurrence of the character c in the string s, or NULL if the character is not found

Question

Write a function that locates a character in a string.Prototype: char *_strchr(char *s, char c);Returns a pointer to the first occurrence of the character c in the string s, or NULL if the character is not found

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Solution

Sure, here is a simple implementation of the function in C:

#include <stdio.h>

char *_strchr(char *s, char c) {
    while (*s != '\0') {
        if (*s == c)
            return s; // return the pointer if character found
        s++;
    }
    if (*s == c)
        return s;
    return NULL; // return NULL if character not found
}

int main() {
    char str[] = "Hello, World!";
    char c = 'o';
    char *result = _strchr(str, c);
    if (result != NULL)
        printf("First occurrence of '%c' in '%s' is at position: %ld\n", c, str, result-str);
    else
        printf("Character '%c' not found in '%s'\n", c, str);
    return 0;
}

This function _strchr takes a string s and a character c as input. It iterates over the string until it finds the character c or reaches the end of the string. If the character is found, it returns a pointer to the first occurrence of the character, otherwise it returns NULL. The main function demonstrates how to use this function.

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char *_strchr(char *s, char c)

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