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[jeff32889]

How do you search a file for a word?

 

[Salem]

Your questions are way too vague to be answered with any degree of success.


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[jeff32889]

that question isn't vague at all

 

[snuv]

assuming you are searching a text file for a specific character string

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

int main () {
  FILE * pFile;
  long lSize;
  char * buffer;

  char szSearchString[] = "sample"

  pFile = fopen ( "myfile.txt" , "rb" );
  if (pFile==NULL) exit (1);

  // obtain file size.
  fseek (pFile , 0 , SEEK_END);
  lSize = ftell (pFile);
  rewind (pFile);

  // allocate memory to contain the whole file.
  buffer = (char*) malloc (lSize);
  if (buffer == NULL) exit (2);

  // copy the file into the buffer.
  fread (buffer,1,lSize,pFile);

  /*** the whole file is loaded in the buffer. ***/
  if (strstr (str,szSearchString) != NULL)
  {
    //do some processing
  }
  // terminate
  fclose (pFile);
  free (buffer);
  return 0;
}

if you want to search big files, you might need to read it in in blocks and check each block. If you do, you will need to work out a way of dealing with a word that crosses the boundary between two blocks

I havent actually tried compiling this code. I got it from

http://www.cplusplus.com/ref/

"If it could have gone wrong earlier and it didn't, it ultimately would have been beneficial for it to have." : Murphy's Ultimate Corollary

 

[Salem]

> that question isn't vague at all
Where's YOUR effort towards a solution then?
This isn't some place where you can just dump a question and expect people to feed you an answer.


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