Problem finding the ratio of frequency of a word to total no of words in a text file in c -

#include<conio.h> #include<stdio.h> #include<iostream.h> #define null 0    int main() {     char name[20],c;     int nw=0;     int j=0;     int t=0;     char s[] = "newas";  // find frequency of word in abc.txt     char p[5];     file *fpt;     //printf("enter name of file checked:- ");     //gets(name);     fpt=fopen("abc.txt","r");     if (fpt==null)     {         printf("error - can/'t open file %s",name);         getch();         exit(0);     }     else     {         while ((c=getc(fpt))!=eof)         {             switch(1)             {                 case 1:                     if (c==' ')                     { point:                         while((c=getc(fpt))==' ');                          if (c!=' ')                             nw=nw+1;                         // if(c==' ')                             // nw--;                         if(j < 5)                             p[j++] = c;                         printf("\n %c ",p[j]);                         if(j == 5)                         {                             if(p == s)                             {                                 t++;                                 j = 0;                                 }                         }                     }                      if(c==' ')                     {                         j = 0;                         goto point;                     }             }         }     }     printf("\n no. of words %d. ",nw);     printf("\n freq of words %s %d. ",s,t);     getch(); } 

the code above code giving right answer total number of words not giving right value of frequency of particular word [s in given code], please comment on this, how calculate frequency of particular word in text file.

as including iostream.h, guess supposed form of c++, not c. if so, how word frequencies:

#include <iostream> #include <map> #include <string> #include <fstream>  using namespace std;  typedef map <string, int> freqmap;  int main() {      freqmap frequencies;     ifstream ifs( "words.txt" );     string word;      while( ifs >> word ) {         frequencies[ word ] += 1;     }      ( freqmap::const_iterator = frequencies.begin();             != frequencies.end(); ++it ) {         cout << it->first << " " << it->second << "\n";     } }