Thread: Passing pointer to array to a function

Hi,

I've been tearing my hair out trying to pass an array to a function using pointers. I keep reading things that tell me an array is a pointer to a series of addresses, and then others that tell me this isn't quite true. So I have no idea what to do.

I am a student trying to do a homework and just can't seem to figure this one out.

The arrays are stu_count, stu_hours, and gpa.

Code:

void get_input(int, int, float, int, int);
float get_tot_hours(int, int);
int get_stu_count(int);
int rpt_out(int, int, float, int, int);

void main(void)
{
	int stu_hours[10] = {0};
	int stu_num[10] = {0};
	float gpa[10] = {0};
	int stu_count = 0;
	int finish = 1;
	int *pfinish;
	int *pscount;
	pfinish = &finish;
	*pfinish = 1;
	pscount = &stu_count;
	*pscount = 0;

	while((stu_count < 11) && (finish != 0))
	{
		//get_input(psnum, stu_count, pgpa, pshours, pfinish); 
		get_input(*stu_num, pscount, *gpa, *stu_hours, pfinish);
		stu_count++;
	}
	//rpt_out(get_tot_hours(stu_count, pshours), get_stu_count(psnum), pgpa, pshours, psnum);
	rpt_out(get_tot_hours(stu_count, *stu_hours), get_stu_count(*stu_num), *gpa, *stu_hours, *stu_num);
	return;
}

void get_input(int *stu_num, int stu_count, float *gpa, int *stu_hours, int *pfinish)
{
	printf("Please Input the 3 digit student code, or 0 to finish:  ");
	scanf("%d", stu_num[stu_count]);
	if ((stu_num + stu_count) == 0)
	{	
		pfinish = 0;
	}	
	else
	{
	printf("\nPlease Input the hours for this student:  ");
	scanf("%d", (stu_hours + stu_count));
	printf("\nPlease Input this student's GPA:  ");
	scanf("%f", (gpa + stu_count));
	}
	return;
}

float get_tot_hours(int stu_count, int stu_hours)
{
	float tot_hours = 0.0f;
	int ilocal = 0;
	for(ilocal = 0; ilocal < stu_count; ilocal++)
	{
		if((stu_hours + ilocal) != 0)
		{
			tot_hours += (stu_hours + ilocal);
		}
	}
	return tot_hours;
}

int get_stu_count(int stu_num)
{
	int ilocal = 0;
	int total = 0;
	for(ilocal = 0; ilocal < 11; ilocal++)
	if((stu_num + ilocal) != 0)
	{
		total++;
	}
	return total;
}

int rpt_out(int tot_hours, int stu_count, float gpa, int stu_hours, int stu_code)
{
	int ilocal = 0;
	printf("\nThe total hours for input students is:  %d", tot_hours);
	printf("\nThe total number of students is:  %d", stu_count);
	printf("\n\nStudent: \t Hours: \t GPA\n");
	for (ilocal = 0; ilocal <= stu_count; ilocal++)
	{
		printf("\n%d \t\t %d \t\t %1.1f", (stu_code + ilocal), (stu_hours + ilocal), (gpa + ilocal));
	}
	return 0;
}

Thank you for your help.

Tojam