Number of words in a string

// read the number of the world, space fills between the words

#include<stdio.h>
//#include<string.h>


int func(char* character )
{
    int number = 0;
    for(int i=0; character[i] !='\0';i++)
    {
        if(character[i]!=' '&& (character[i+1]==' '||character =="\n"))
        {
            number +=1;
        } 

    }
    return number;
}
int main()
{
    FILE *f;
    char words[50] = "i want to fuck you  "; // if words[] must initiate immediately
    f = fopen("C:\\users\\mike1\\desktop\\word.txt","w");
    fprintf(f,"%d",func(words));
    fclose(f);
 

    return 0;
}