Reset error indicators: writing errors : error « Development « C / ANSI-C

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Reset error indicators: writing errors





#include <stdio.h>



int main ()

{

  FILE * pFile;

  pFile = fopen("f.txt","r");



  if (pFile==NULL) 

      perror ("Error opening file");

  else {

      fputc ('v',pFile);

      if (ferror (pFile)) {

          printf ("Error Writing to f.txt\n");

          clearerr (pFile);

      }

      fgetc (pFile);

      if (!ferror (pFile))

          printf ("No errors.\n"); 

      fclose (pFile);

  }

  return 0;

}

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