Longest Word

// Complete the longestWord function
// The function should return a pointer to the longest word in the
// provided string. If two words are of equal length, return a pointer
// to the word that occurs first.

// For the task, you may assume a word is made of alphabetic characters.
// If no words are found, return a NULL pointer

// You may use C library functions

// To compile your code, run:
// gcc -Wall -Werror -o ? longestWord.c longestWord_?.c
// Replace the question mark with the test you wish to compile
// Solutions can be found in the corresponding .out file

#include <stdlib.h>
#include <ctype.h>
#include <string.h>

#include "longestWord.h"

char* longestWord(char* string){
    char lWord[1000];
    int lWordLength = 0;

    char currWord[1000] = {};
    int currWordLength = 0;

    for (int i = 0; i < strlen(string); i++) {
        char c = string[i];
        if (isalpha(c)) {
            strncat(currWord, &c, 1);
            currWordLength++;
        } else {
            if (currWordLength > lWordLength) {
                strcpy(lWord, currWord);
                lWordLength = currWordLength;
            }
            currWord[0] = '\0';
            currWordLength = 0;
        }
    }

    string = lWord;
    return string;
}