Can Anybody Tell Me Whats Wrong With This Sourcecode ??

[AAG]

I get errors when running this, please tell me whats wrong

#include <stdio.h>
void main(void)
{
int acct_num;
char use_code;
int peak_hrs;
int off_peak_hrs;
double charge;
float cost, cost2, total_cost;
void displayInstructions();
double computeCharge (char, int, int); /*declares function*/
FILE *in_file;
char f_name[13];

printf("\n file to be processed: ");
gets(f_name);
in_file = fopen (f_name, "r");
if (in_file == NULL)
{
printf("\n failed to open the file.\n");
exit (1);
}
while (fscanf(in_file, "%d %c %d %d ", &acct_num, &use_code, &peak_hrs, &off_peak_hrs) != EOF)
{
/*function called*/
charge = computeCharge(use_code, peak_hrs, off_peak_hrs);
if (charge == 0)
printf ("\n\n ACCT:%4d not processed. Invalid code entered:%c",acct_num, use_code);
else
printf ("\n ACCT#:%4d CUSTOMER CODE:%c", acct_num, use_code);
printf ("\n PEAK HRS:%4d OFF PEAK HRS:%4d",peak_hrs, off_peak_hrs);
printf ("\n TOTAL CHARGES:%4.2f \n",charge);
}
}
void displayInstructions()
{
char text;
FILE *IN_FILE;
in_file = fopen (text.dat, "r");
while (fscanf(in_file, " %c ", &text) != EOF)
{
printf("\n%c", text);
}
fclose(in_file);
}
/*computing charge function based on file input*/
double computeCharge(char x, int y, int z)
{
double charge;
float cost, cost2;
if (x == 'R' || x == 'r')
{
charge = ((y * 0.052) + 6.00);
}
else if (x == 'C' || x == 'c')
if (y > 1000)
{
charge = ((y - 1000) * 0.045) + 60.00;
}
else
{
charge == 60.00;
}
else if (x == 'I' || x == 'i')
{
if (y == 0 && z == 0)
{
charge = 10;
}
else if (y > 0 && z < 1000)
{
cost = 76;
if (z > 0 && z < 1000)
{
cost2 = 40;
}
else if (z > 0 && z > 1000)
{
cost2 = ((z - 1000) * 0.028 + 40);
}
charge = cost + cost2;
}
else if (y > 0 && y > 1000)
{
cost = ((y - 1000) * 0.065 + 76);
if (z > 0 && z < 1000)
{
cost2 = 40;
}
else if (z > 0 && z > 1000)
{
cost2 = ((z - 1000) * 0.028 + 40);
}
charge = cost + cost2;
}
}
else
{
charge = 0;
}
return (charge);
}

[parksie]

What errors do you get?

PS: put code in [ code ] [/ code ] tags (without the spaces).

One thing I noticed...you can't nest functions - put them separately, outside of main().

[AAG]

The Errors Generated Are As Follows:

Undefined Symbol 'in_file'
Structure required on left side of . or .*




heres the code again.

 
#include <stdio.h>
void main(void)
{
	int acct_num;
	char use_code;
	int peak_hrs;
	int off_peak_hrs;
	double charge;
	float cost, cost2, total_cost;
	void displayInstructions();
	double computeCharge (char, int, int); /*declares function*/
	FILE *in_file;
	char f_name[13];

	printf("\n file to be processed: ");
	gets(f_name);
	in_file = fopen (f_name, "r");
	if (in_file == NULL)
	{
		printf("\n failed to open the file.\n");
		exit (1);
	}
	while (fscanf(in_file, "%d %c %d %d ", &acct_num, &use_code, &peak_hrs, &off_peak_hrs) != EOF)
	{
	 /*function called*/
	 charge = computeCharge(use_code, peak_hrs, off_peak_hrs);
	 if (charge == 0)
		printf ("\n\n ACCT:%4d not processed. Invalid code entered:%c",acct_num, use_code);
	 else
		printf ("\n ACCT#:%4d   CUSTOMER CODE:%c", acct_num, use_code);
		printf ("\n PEAK HRS:%4d    OFF PEAK HRS:%4d",peak_hrs, off_peak_hrs);
		printf ("\n TOTAL CHARGES:%4.2f \n",charge);
	}
}
	void displayInstructions()
	{
	 char text;
	 FILE *IN_FILE;
	 in_file = fopen (text.dat, "r");
	 while (fscanf(in_file, " %c ", &text) != EOF)
	 {
	  printf("\n%c", text);
	 }
	  fclose(in_file);
	}
	/*computing charge function based on file input*/
       double computeCharge(char x, int y, int z)
	{
	 double charge;
	 float cost, cost2;
	  if (x == 'R' ||  x == 'r')
		{
		 charge = ((y * 0.052) + 6.00);
		}
	  else if (x == 'C' || x == 'c')
		if (y > 1000)
		       {
			charge = ((y - 1000) * 0.045) + 60.00;
		       }
		 else
		       {
			charge == 60.00;
		       }
	  else if (x == 'I' || x == 'i')
	      {
		if (y == 0 && z == 0)
		       {
			charge = 10;
		       }
		else if (y > 0 && z < 1000)
			{
			 cost = 76;
			 if (z > 0 && z < 1000)
				{
				 cost2 = 40;
				}
			 else if (z > 0 && z > 1000)
				{
				 cost2 = ((z - 1000) * 0.028 + 40);
				}
			 charge = cost + cost2;
			}
		else if (y > 0 && y > 1000)
			{
			 cost = ((y - 1000) * 0.065 + 76);
			 if (z > 0 && z < 1000)
				{
				 cost2 = 40;
				}
			 else if (z > 0 && z > 1000)
				{
				 cost2 = ((z - 1000) * 0.028 + 40);
				}
			 charge = cost + cost2;
			}
	      }
	  else
	     {
	      charge = 0;
	     }
	return (charge);
     }

Try this, I made some changes...Check the comments..
I got it to compile, put I didn't have time to study what it does, therefor I didn't play with it to see if it works.

#include <stdio.h>
#include <cstdlib> // need this for the exit function

void main(void)
{
	int acct_num;
	char use_code;
	int peak_hrs;
	int off_peak_hrs;
	double charge;
	float cost, cost2, total_cost;
	void displayInstructions();
	double computeCharge (char, int, int); /*declares function*/
	FILE *in_file;
	char f_name[13];

	printf("\n file to be processed: ");
	gets(f_name);
	in_file = fopen (f_name, "r");
	if (in_file == NULL)
	{
		printf("\n failed to open the file.\n");
		exit (1);
	}
	while (fscanf(in_file, "%d %c %d %d ", &acct_num, &use_code, &peak_hrs, &off_peak_hrs) != EOF)
	{
	 /*function called*/
	 charge = computeCharge(use_code, peak_hrs, off_peak_hrs);
	 if (charge == 0)
		printf ("\n\n ACCT:%4d not processed. Invalid code entered:%c",acct_num, use_code);
	 else
		printf ("\n ACCT#:%4d   CUSTOMER CODE:%c", acct_num, use_code);
		printf ("\n PEAK HRS:%4d    OFF PEAK HRS:%4d",peak_hrs, off_peak_hrs);
		printf ("\n TOTAL CHARGES:%4.2f \n",charge);
	}
}
	void displayInstructions()
	{
	 char text;
	//FILE *IN_FILE;   
	FILE *in_file;
	
	// Is this what you meant to do...?  in_file isn't declared
	// nor is it passed into this fuction.... you created a FILE *IN_FILE
	// above, didn't you mean FILE *in_file?
	// Also, this line to C++ is looking at text.dat as a object and you are
	// calling on one of it's methods.
	//in_file = fopen (text.dat, "r");

	in_file = fopen("text.dat", "r");
	 while (fscanf(in_file, " %c ", &text) != EOF)
	 {
	  printf("\n%c", text);
	 }
	  fclose(in_file);
	}
	/*computing charge function based on file input*/
       double computeCharge(char x, int y, int z)
	{
	 double charge;
	 float cost, cost2;
	  if (x == 'R' ||  x == 'r')
		{
		 charge = ((y * 0.052) + 6.00);
		}
	  else if (x == 'C' || x == 'c')
		if (y > 1000)
		       {
			charge = ((y - 1000) * 0.045) + 60.00;
		       }
		 else
		       {
			charge == 60.00;
		       }
	  else if (x == 'I' || x == 'i')
	      {
		if (y == 0 && z == 0)
		       {
			charge = 10;
		       }
		else if (y > 0 && z < 1000)
			{
			 cost = 76;
			 if (z > 0 && z < 1000)
				{
				 cost2 = 40;
				}
			 else if (z > 0 && z > 1000)
				{
				 cost2 = ((z - 1000) * 0.028 + 40);
				}
			 charge = cost + cost2;
			}
		else if (y > 0 && y > 1000)
			{
			 cost = ((y - 1000) * 0.065 + 76);
			 if (z > 0 && z < 1000)
				{
				 cost2 = 40;
				}
			 else if (z > 0 && z > 1000)
				{
				 cost2 = ((z - 1000) * 0.028 + 40);
				}
			 charge = cost + cost2;
			}
	      }
	  else
	     {
	      charge = 0;
	     }
	return (charge);
     }