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/*
In this program, your task is to comp1ete
all of the function definitions.
Do NOT change any of the given code.
You will find errors which point to the main().
when that happens, do NOT change the main function code.
The errors are in your function code.
If you have any questions, let me know through emails.
*/
#include <iostream>
#include <fstream>
#include <iomanip>
#include <ctime>
using namespace std;
void openFile (ifstream &inputStream);
int initArray (int *a, int size);
void testArray (const char *name, const int *array, int SIZE,
const int *x, const int *y, int count);
int LoadData (istream &infile, int array[], int arraySize, int &count);
void List (const int array[], int count);
void CopyArray (int destArray[], const int srcArray[], int count);
void RotateLeft (int array[], int count);
void RotateRight (int array[], int count);
void Reverse (int array[], int count);
const int SEED = -42;
int main() {
const int ARRAY_SIZE = 1000, X_SIZE = 20;
int array[ARRAY_SIZE];
int *x = array + 100, *y = array + 300, count, status;
cout << "PGM803_YOUR LAST NAME" << endl;
ifstream fin;
openFile (fin);
int seed = initArray (array, ARRAY_SIZE);
status = LoadData (fin, x, X_SIZE, count);
cout << "\nstatus = " << status << " count = " << count << "\n\n";
cout << "load ";
List (x, count);
if (count > X_SIZE) {
cout << "\n\a***** ERROR: "
<< "loadData() returned a count greater than the array size."
<< " *****\n";
return 1;
}
//testArray ("loadData() ", array, ARRAY_SIZE, x, y, count);
CopyArray (y, x, count);
cout << "copyArray: ";
List (y, count);
//testArray ("copyArray() ", array, ARRAY_SIZE, x, y, count);
RotateLeft (x, count);
cout << "left: ";
List (x, count );
//testArray ("rotateLeft()", array, ARRAY_SIZE, x, y, count);
CopyArray (x, y, count);
RotateRight (x, count);
cout << "right: ";
List (x, count);
//testArray ("rotateRight()", array, ARRAY_SIZE, x, y, count);
CopyArray (x, y, count);
Reverse (x, count);
cout << "reverse: ";
List (x, count);
// testArray ("reverse() ", array, ARRAY_SIZE, x, y, count);
return 0;
}
int initArray (int *a, int size) {
for (int *limit = a + size; a < limit; a++)
*a = SEED;
return SEED;
}
void skipSegment (const int *array, const int *limit) {
for (; array < limit; array++)
rand();
}
void testSegment (const char *name, const int *array, const int *limit,
const int *x ) {
int error = 0;
for (; array < limit; array++) {
if (*array != -rand() ) {
error++;
cout << "\aERROR: " << name << " function overflowed array"
<< " subscript = " << (array - x)
<< " contents = " << *array << '\n';
}
if( error >= 5 ) exit( 1 );
}
if( error > 0 ) exit( 1 );
}
void testArray (const char *name, const int *array, int SIZE,
const int *x, const int *y, int count) {
testSegment (name, array, x, x);
skipSegment (x, x + count);
testSegment (name, x+count, y, x);
skipSegment (y, y + count);
testSegment (name, y+count, array+SIZE, y);
}
void openFile (ifstream &inputStream) {
char filename[_MAX_PATH];
cout << "\nEnter name of disk input file: ";
cin >> filename;
inputStream.open( filename );
if( !inputStream ) {
cerr << "\nCould not open input file " << filename << '\n' << endl;
exit (EXIT_FAILURE);
}
}
//################
int LoadData (istream &infile, int array[],
int arraySize, int &count)
{
int index = 0;
int status;
while (index < arraySize && infile >> array[index] )
{
index++;
if ( infile.eof() )
{
status = 0;
break;
}
if( index == arraySize && infile >> ws && infile.good() )
{ //Too many data on the input file
status = 1;
break;
}
if( !infile.eof() && infile.fail() )
{ //Bad input data
status = -1;
break;
}
infile >> array[index];
}
count = index;
return status;
}
void List (const int array[], int count)
{
for ( int i = 0; i < 20; i++){
while(i < count){
cout << setw(3) << array[i];
if( i + 1 == 20)
cout << "\n";
}
}
cout << "\n";
}
void CopyArray (int destArray[], const int srcArray[], int count)
{
for (int index = 0; index < count; index++)
{
destArray[index] = srcArray[index];
cout << setw(3) << destArray[index];
if( index + 1 == 20)
cout << "\n";
}
cout << "\n";
}
void RotateLeft (int array[], int count)
{
array[0] = array[count];
cout << setw(3) << array[0];
for (int i = 1; i < count; i++)
{
array[i] = array[i-1];
cout << setw(3) << array[i];
if( i + 1 == 20)
cout << "\n";
}
cout << "\n";
}
void RotateRight (int array[], int count)
{
array[count] = array[0];
for (int i = 1; i < count; i++)
{
array[i] = array[i+1];
}
for (int i = 0; i < count; i++)
{
cout << setw(3) << array[i];
if( i + 1 == 20)
cout << "\n";
}
cout << "\n";
}
void Reverse (int array[], int count)
{
for (int i = 0; i < 9; i++)
{
int k = 8;
array[i] = array[i + k];
k = k -2;
cout << setw(3) << array[i];
if( i + 1 == 20)
cout << "\n";
}
cout << "\n";
}
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