How to store STDIN from text file

Question

I need to read in words from a text file and then count the occurrences of each word but I can't figure out how to store the words in a variable.

I read the code in using fgets, and then i can print it using printf. However when I try to store the character array in a different array that I can use to compare the character arrays later, i keep getting seg faults. How can I go about saving the character array "line" in a different array?

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

#define MAXSIZE  500    
#define MAXWORDS 1000 


int main ( int argc, char *argv[] ) {
   char line[MAXSIZE];
   char line1[MAXWORDS][MAXSIZE];
   int i,j,k;
   int count = 0;


   while ( fgets ( line, MAXSIZE, stdin ) != NULL ) {
    printf("%s", line);


    strcpy(line1[count], line);

    printf("%s\n", line1[count][i]);


    count++;

   }

   return(0);
}

(This is my updated code, it still prints the first line and then seg faults.)

when I compile and run this code, it prints the first line of the text file and then returns "segmentation fault"

You never initialize count. Turn on your compiler warnings and heed them. Also... er... Have you not learned about strcpy() yet? — Shawn
How to "store" STDIN... So you want to use your 2D array as storage for everything you read from stdin? Fine, but horribly wasteful on storage for lines containing nothing but '\n' or text like "okay". You also need to limit the number of lines you attempt to store to less than MAXSIZE lines. — David C. Rankin
Are you trying to count distinct words ? what about multiple words per line ? — dash-o

Mahonri Moriancumer Mahonri Moriancumer · Accepted Answer · 2019-10-27T03:13:08

Perhaps the question code is close.

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

  #define MAXSIZE  500
  #define MAXWORDS 1000

  int main(int argc, char *argv[])
    {
    char line[MAXSIZE];
    char line1[MAXWORDS][MAXSIZE];
    int  count = 0;

    while(fgets(line, MAXSIZE, stdin))
      {
      printf("%s", line);
      strcpy(line1[count], line);
      printf("%s\n", line1[count]);  // instead of: printf("%s\n", line1[count][i]);

      count++;
      }

    return(0);
    }

How to store STDIN from text file

2 Answers