Question

Below is segment of my program, I have a function that will count the occurrence of a character set from a file. The text file is "The house is a home but the house is cold".

I want to count the occurrence of "ho" which would be 3.

IN my main function I declare int word_occurrence(char * filename, char * word, char * line, int size). word would be "ho" for this example.

my function looks like this: I keep getting errors, how do I set the word to "ho", I want to use the strstr function to find the occurrence. of "ho"

int word_occurrence(char * filename, char * word, char * line, int size)
{

*word = "ho";

//other program stuff"

}

Answer 1

If you have any doubts, please give me comment...

#include<stdio.h>

int word_occurrence(char * filename, char * word, char * line, int size)

{

    FILE *fp;

    fp = fopen(filename, "r");

    if(fp==NULL)

        return 0;

    char str[100];

    int i, j,count = 0;

    while(!feof(fp)){

        fgets(str, 100, fp);

        i=0;

        while(str[i]!='\0'){

            if(str[i]==word[0]){

                j=0;

                while(word[j]!='\0'){

                    if(word[j]!=str[i+j])

                        break;

                    j++;

                }

                if(word[j]=='\0')

                    count++;

            }

            i++;

        }

    }

    return count;

}

int main(){

    char filename[] = "input.txt";

    char word[] = "ho";

    char *line;

    int size;

    int occurance = word_occurrence(filename, word, line, size);

    printf("count the occurances of \"%s\" is : %d\n", word, occurance);

    return 0;

}