Thread: homework time

im wanting to read in from 1 text file, and write to another, i want to take an ALL CAPS file

ex) THIS IS MY FILE IT IS A BUNCH OF CRAP. BLAH
BLAH BLAH, BLAH BLAH, BLAH BLAH!!!

and write it to another so that it looks like this

ex)This is my file it is a bunch of crap Blah
blah blah, blah blah, blah blah!!!

i wrote it, and im getting some wierd errors, im wanting to stick with stdio.h. but like i said, im getting some wierd errors...can you guys check out my code??

THANKS!
****************

Code:

#include <stdio.h>

int UPPERtoLOWER(int ch);
void SearchString(char *sentence);

int i = 0;

int main()
{
	char sentence[500];
	FILE *rptPTR;   /* file pointer to the report*/
	FILE *updatePTR;   /* file pointer to the updated file*/

	if (( rptPTR = fopen("report.txt", "r") ) == NULL )
	{
		printf("File could not be opened!\n");
	}

	if (( updatePTR = fopen("update.txt", "w") ) == NULL )
    {
		printf("File could not be opened!\n");
    }
	
	else 
	{
		while(fgets(sentence, 500, rptPTR) != NULL)
		{
			printf("%s", sentence);
		}

		printf("\n");
		
		if (( updatePTR = fopen("update.txt", "w") ) == NULL )
		{
			printf("File could not be opened!\n");
		}
		
		else
		{
			 

			SearchString(sentence);
			fwrite(sentence, sizeof(char), sizeof(sentence), updatePTR);
		}
		
		fclose(rptPTR);
		fclose(updatePTR);

		printf("Your file has been updated!\nLook for update.txt\n");
	}

	return 0;
}


int UPPERtoLOWER(int ch)
{
   if (( 'A' <= ch) && (ch <= 'Z' ))
   {
        return (ch - 'A' + 'a');
   }

   else
   {
        return ch;
   }
}


void SearchString(char *sentence)
{
  char space = ' ';
  char period = '.';
  char exclam = '!';
  char questmk = '?';
  static int C=1;

  for (i = 0; sentence[i] != '\0'; i++)
  {
       if ((sentence[i] == period) || (sentence[i] == exclam) || (sentence[i] == questmk))
       {
          C=1;
       }
       if( C && 'A' <= sentence[i] && sentence[i] <= 'Z' ){
           C=0;
       }else{
           sentence[i] =(char)UPPERtoLOWER(sentence[i]);
       }
  }
}

Same class.

we got it taken care of guys. Thanks!

and for the record, colaboration isnt cheating, sharing code however is.